JP2013020568A - Traffic system, information generation device and data structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traffic system for collectively transmitting information on a display schedule of signal colors of multiple traffic signal controllers to vehicles while maintaining its accuracy.SOLUTION: A central device 1 determines whether all the traffic signal controller 2A, 2B, 2C and 2D are under synchronization in a next cycle, and, when determining that they are under synchronization, generates intersection signal information to be provided including a target off-set, a cycle length and a green light duration of each traffic signal controller 2 in the next cycle to transmit it to an information relay device 3. The traffic signal controller 2A generates reference intersection signal information on display duration of each signal color in the present cycle and the next cycle for each prescribed time to transmit it to the information relay device 3. The information relay device 3 generates green wave signal information on a display schedule of signal colors of each traffic signal controller 2 on the basis of the intersection signal information to be provided and the reference intersection signal information and transmits it to a road side communication device 4.

Description

  The present invention relates to a traffic system for transmitting a plurality of intersection signal lamp color display information including information related to display schedules of signal lamp colors of a plurality of traffic signal controllers to a vehicle.

A technique is known in which signal information relating to a future signal lamp color display schedule of a traffic signal is generated and provided to a vehicle (Patent Document 1). This traffic signal (traffic signal controller) is a signal of the next cycle based on data that can determine the timing for switching the signal lamp colors of the signal lamps, which is called signal control command information transmitted from the central device at the end of the cycle. A control plan is created, and signal information for each road flowing into the intersection is created based on this plan. The traffic signal device provides the created signal information to the vehicle via a roadside communication device such as an optical beacon.
In addition, a method has been proposed in which signal information of a plurality of adjacent traffic signals (especially signal information of traffic signals continuous on a trunk line) is collectively sent from one roadside communication device (Patent Document 2).

JP 2008-152680 A Japanese Patent No. 3286993

  However, Patent Document 2 does not disclose which device creates how the signal information transmitted from the roadside communication device. In addition, since the signal information to be transmitted is only a parameter indicating an outline of signal control of a traffic signal (traffic signal controller) such as cycle, split, and offset, a vehicle that has received this signal information is currently receiving a green signal. It is impossible to grasp the specific contents such as how many seconds the time will continue.

The present inventors have found that when the signal information of a plurality of traffic signal controllers is to be transmitted to a vehicle together, there are the following problems that are not shown in the above patent document.
The traffic signal controller is not operating in step control that switches the signal light color based on the signal timing signal color switching timing signal sent from the central unit, but every cycle or at a predetermined cycle. When operating with table control that determines the signal lamp color switching timing of the signal lamp unit based on the signal control command information sent from the central device every time and switches the signal lamp color according to the timing, Although the device instructs the traffic signal controller about the rough control based on the signal control command information, each traffic signal controller determines how the signal light color is actually switched. Creating information is difficult.

  For example, even if the central device tries to create signal information for each traffic signal controller using the signal control parameters such as cycle length, split, and offset set by the central device for each traffic signal controller, The offset set for the traffic signal controller is the target value (this offset is called the target offset), and the actual offset (this offset is called the execution offset) actually executed by the traffic signal controller is different from the target offset. There is a case.

  More specifically, the central device periodically updates the target offset value (for example, every 15 minutes), and transmits it to the traffic signal controller including the signal control command information. In order to reproduce the target offset included in the signal control command information, the cycle start time is advanced or delayed, that is, the cycle length is shortened or extended, so that the execution offset approaches the target offset. To do.

  However, the fluctuation amount of the cycle length that can be changed in one cycle (this is called the tracking width) is determined in advance by the central device, for example, within a range from −1/8 to +1/8 of the cycle length. In the case where the traffic signal controller changes the cycle length exceeding the fluctuation amount, it is necessary to perform a process called offset tracking that adjusts the cycle length step by step over a plurality of cycles. Due to this offset tracking, the target offset known by the central device for each cycle may differ from the actual offset actually executed by the traffic signal controller.

  Therefore, even if the cycle start time is calculated from the target offset of the traffic signal controller that the central device grasps, the cycle start time of the actual traffic signal controller may be different. Even if signal information based on time is created, there is a problem that accuracy is lacking.

Therefore, each traffic signal controller creates its own signal information, and a roadside communication device or one specific traffic signal controller (for example, a traffic signal at an intersection where a vehicle receiving the signal information first passes) A method of consolidating signal information in the controller) is conceivable.
However, in this case, accurate signal information can only be created by each traffic signal controller, but when they are aggregated and transmitted to the vehicle, it is difficult to adjust so that there is no time difference between each signal information There's a problem. Specifically, it is as follows.

  For example, if signal information arrives from a plurality of traffic signal controllers almost simultaneously to a roadside communication device at a certain point in time, if the timing at which the signal information was created by each traffic signal controller is different, it was received If the signal information is simply pasted, a time difference will occur between the signal information of each traffic signal controller.

  In addition, the traffic signal controller at the nearest intersection of the point where the roadside communication device is installed may be directly connected to the roadside communication device via a communication line, but a plurality of traffic signal controllers other than this traffic signal controller It is rare that a direct communication line is connected to the roadside communication device, and the communication performed between them is via a device such as a router on the central device side connected to each traffic signal controller. This is generally done. Therefore, a certain amount of time is required for communication, and the time required varies depending on the traffic signal controller. Furthermore, even in the same traffic signal controller, the required time fluctuates due to the influence of other communication between the central device and each traffic signal controller or the like currently performed.

  Although it is possible to synchronize the timing of creating signal information between traffic signal controllers, in order to strictly synchronize between traffic signal controllers, a common synchronization signal is received by each traffic signal controller (for example, GPS signals need to be received), and it is costly to provide all the traffic signal controllers with such receiving means. Moreover, even if each traffic signal controller creates and transmits signal information at the same timing (for example, every second) after synchronization, the time required until the signal information arrives at the roadside communication device. If they are different, if the received signal information is simply pasted, there is a possibility that the signal information created at a different timing will be pasted by mistake.

  In addition, it is possible that the roadside communication device waits until all signal information created at the same timing arrives, and then combines the signal information, but so as not to cause a time difference from the display of the signal lamp It is impossible to send signal information to the vehicle in real time.

  In order to solve these problems, for example, a direct communication path is provided between the roadside communication device and each traffic signal controller so that the communication delay can be neglected. A method of sending information after correcting the communication delay time between all traffic signal controllers and roadside communication devices after providing a means for accurately measuring each time can be considered. Is costly and unrealistic.

  The present invention has been made in view of such circumstances, and information relating to display schedules of signal light colors of a plurality of traffic signal controllers can be kept accurate without significantly changing the current configuration of the traffic control system. An object of the present invention is to provide a transportation system that collectively transmits to a vehicle.

(1) A traffic system according to a first aspect of the present invention is a traffic system that provides a vehicle with a plurality of intersection signal lamp color display information including information related to a display schedule of signal lamp colors of signal lamps installed at a plurality of intersections. A plurality of traffic signal controllers installed at each of the plurality of intersections, and the traffic signal controller displays a signal lamp color of the signal lamp. A central device that creates signal control parameter information used for control for each of the plurality of traffic signal controllers, and an information creation device that creates the plurality of intersection signal light color display information, the central device, A plurality of intersection signal information including signal control parameter information corresponding to each of the plurality of traffic signal controllers is configured to be transmitted to the information creation device. The traffic signal controller (hereinafter referred to as “reference traffic signal controller”) installed at one of the plurality of intersections (hereinafter referred to as “reference intersection”) The reference point signal information including the scheduled display time of the signal lamp color of the signal lamp controlled by itself is transmitted to the information generating apparatus every predetermined first cycle, Is configured to calculate an elapsed time from a cycle start time in a predetermined first cycle of the reference traffic signal controller based on the reference intersection signal information, and the information creating device calculates the reference The plurality of intersections in the first cycle based on the elapsed time from the cycle start time in the first cycle of the traffic signal controller and the plurality of traffic signal information Are those configured to create issue lamp color display information.

Here, the cycle means that the display of the signal lamp color of the signal lamp is completed, and the cycle length indicates the time required for the display of the signal lamp color of the signal lamp.
According to the first invention, the central device creates signal control parameter information corresponding to each of the plurality of traffic signal controllers, and transmits the multiple intersection signal information including these signal control parameter information to the information creation device. The information creation device is based on the reference intersection signal information including the scheduled display time of the signal lamp color sent every predetermined first period (for example, every second) from the reference traffic signal controller included in the plurality of intersection signal information. Thus, the elapsed time from the cycle start time in the predetermined first cycle of the reference traffic signal controller is calculated. Then, the information creation device creates the multiple intersection signal lamp color display information in the first cycle based on the elapsed time from the cycle start time and the received multiple intersection signal information.
The central device collectively creates macro information called signal control parameter information corresponding to each of the plurality of traffic signal controllers, and the information generator creates the reference traffic signal controller while maintaining temporal synchronization between these pieces of information. By calculating micro information such as the elapsed time from the cycle start time in the first cycle, consistency with the actual time axis can be maintained.
Thereby, multiple intersection signal lamp color display information can be transmitted to the vehicle while maintaining accuracy. In addition, the vehicle can appropriately calculate the range of travel speed that can pass through the plurality of intersections during the green light based on the plurality of intersection signal lamp color display information.

(2) Further, in the first cycle, the information generation device further includes a determination unit that determines whether or not all of the plurality of traffic signal controllers are in synchronization. It is preferable that the plurality of intersection signal lamp color display information in the first cycle is created when it is determined to be.

Here, “synchronized” means that the offset tracking has been completed and the offset created by the central unit (target offset) matches the offset actually executed by the traffic signal controller (execution offset). .
According to this configuration, the difference between the signal control parameter information such as the offset (target offset) created by the central device and the execution result of the signal control such as the offset (execution offset) actually executed by these traffic signal controllers. However, the influence on the multiple intersection signal lamp color display information is eliminated.
Therefore, the multiple intersection signal lamp color display information can be transmitted to the vehicle while maintaining accuracy. In addition, the vehicle can appropriately calculate the range of travel speed that can pass through the plurality of intersections during the green light based on the plurality of intersection signal lamp color display information.

(3) In the first cycle, the information generation device further includes a determination unit that determines whether or not each of the plurality of traffic signal controllers is in synchronization. A plurality of intersection signal light color display information including information related to the display schedule of the signal light color of the signal light device in the first cycle is created only for the traffic signal controller determined that the determination means is in synchronization It is preferable that

According to this configuration, the execution result of signal control such as the offset actually executed (execution offset) among a plurality of traffic signal controllers because the offset is being followed is the offset (target) created by the central device. For traffic signal controllers that deviate from signal control parameter information such as (offset), the signal lamp color display schedule is not included in the multiple intersection signal lamp color display information.
Therefore, the multiple intersection signal lamp color display information can be transmitted to the vehicle while maintaining accuracy. In addition, the vehicle can appropriately calculate the range of travel speed that can pass through the plurality of intersections during the green light based on the plurality of intersection signal lamp color display information.

(4) Moreover, the information creation apparatus further includes a determination unit that determines whether all of the plurality of traffic signal controllers are in synchronization within a predetermined number of cycles from the first cycle. It is preferable that the plurality of intersection signal lamp color display information in the first cycle is generated when it is determined that the means is in synchronization.

According to this configuration, the difference between the signal control parameter information such as the offset (target offset) created by the central device and the execution result of the signal control such as the offset (execution offset) actually executed by these traffic signal controllers. However, the influence on the multiple intersection signal lamp color display information is reduced.
Therefore, the multiple intersection signal lamp color display information can be transmitted to the vehicle while maintaining a certain degree of accuracy. In addition, the vehicle can appropriately calculate the range of travel speed that can pass through the plurality of intersections during the green light based on the plurality of intersection signal lamp color display information.

(5) In addition, the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length, a target offset that is a target offset, and a time that is a reference for measuring the offset. An offset reference time and a follow-up width that is a width capable of extending or shortening the cycle length in one cycle, and each of the plurality of traffic signal controllers is a cycle that is a cycle before the first cycle. It is configured to create signal control execution information including a result of controlling the display of the signal lamp color of the signal lamp in two cycles, and the signal control execution information corresponding to each of the plurality of traffic signal controllers includes The second cycle is the cycle start time in the second cycle and the execution time of each of the plurality of steps constituting the second cycle. The determination means includes the cycle length corresponding to each of the plurality of traffic signal controllers, the target offset, the offset reference time, and the tracking width. Preferably, it is configured to determine whether or not synchronization is in progress based on the cycle start time in the second cycle and the execution seconds of each step in the second cycle.

  According to this configuration, the cycle start time in the second cycle that is a cycle before the first cycle and the number of execution seconds of each step included in the signal control execution information corresponding to each of the plurality of traffic signal controllers, Based on the cycle length, target offset, offset reference time, and tracking width included in the signal control parameter information corresponding to each traffic signal controller, whether or not each of these traffic signal controllers is synchronized Since determination is performed, accurate determination is possible.

(6) The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length, an offset reference time that is a reference time for measuring an offset, and a cycle length in one cycle. A tracking width that is a width that can be extended or shortened, and each of the plurality of traffic signal controllers has a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. It is configured to create signal control execution information including a result of controlling the display, and the signal control execution information corresponding to each of the plurality of traffic signal controllers includes a cycle start time in the second cycle, The execution time of each of the tiers in the second cycle, which is the execution time of each of the plurality of stairs constituting the second cycle, is included. The cycle length corresponding to each of one or more traffic signal controllers (hereinafter referred to as “dependent traffic signal controllers”) installed at a dependent intersection that is an intersection other than the reference intersection among the plurality of intersections; Based on the offset reference time, the cycle start time in the second cycle, and the execution seconds of each step in the second cycle, the first corresponding to each of the one or more subordinate traffic signal controllers. The information generation device further includes a calculation unit that calculates an execution offset that is an offset executed in one cycle, and the information generation device includes the cycle length, the tracking width, and the traffic that correspond to the traffic signal controllers. Each of the signal controllers has a green time in the direction in which the vehicle enters in the first cycle, and the reference traffic signal control. The multiple intersection signal lamp color display information including an elapsed time from the cycle start time in the first cycle of the aircraft and the execution offset in the first cycle corresponding to each of the one or more dependent traffic signal controllers. It is preferably configured to create.

According to this configuration, the cycle length and the offset reference time included in the signal control parameter information corresponding to each of one or a plurality of dependent traffic signal controllers, and the signal control execution information corresponding to each of these dependent traffic signal controllers. The execution offset in the first cycle corresponding to each of these subordinate traffic signal controllers is calculated from the cycle start time in the second cycle, which is a cycle before the first cycle included, and the execution seconds of each step. , The execution offset in the first cycle, the cycle length and the tracking width included in the signal control parameter information corresponding to each of the plurality of traffic signal controllers, and the direction in which the vehicle enters each of these traffic signal controllers The green time and the reference traffic signal controller Since multiple intersection signal light color display information including overtime is transmitted to the vehicle, the vehicle accurately predicts the time zone of the green light at each intersection according to the movement of each traffic signal controller based on this information be able to.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(7) In addition, the second cycle is a cycle two previous to the first cycle, and the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle. And a follow-up width in the first cycle, a cycle length in a third cycle that is a cycle immediately before the first cycle, and an offset reference time in the third cycle, and the calculating means , The cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the offset reference time in the third cycle, the cycle start time in the second cycle, and the second Each of the one or more subordinate traffic signal controllers based on the number of seconds of execution of each floor in the cycle. The execution offset in the third cycle is calculated, and the execution offset in the third cycle corresponding to each of the one or more dependent traffic signal controllers corresponds to each of the one or more dependent traffic signal controllers. The information creation device is configured to regard the execution offset in a first cycle, and the information creation device includes the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, and the follow-up in the first cycle. The width, the blue time in the first cycle, the elapsed time from the cycle start time in the first cycle of the reference traffic signal controller, and the one or more subordinate traffic signal controllers respectively The multiple intersection signal lamp color table including the execution offset in the first cycle It is preferably configured to create the information.

According to this configuration, the cycle length and the offset reference time in the third cycle, which is the cycle immediately before the first cycle, included in the signal control parameter information corresponding to each of the one or more subordinate traffic signal controllers, From the cycle start time in the second cycle, which is the cycle two times before the first cycle, and the number of execution seconds of each step, included in the signal control execution information corresponding to each of these subordinate traffic signal controllers, The execution offset in the third cycle corresponding to each traffic signal controller is calculated, and the execution offset in the third cycle and the first cycle included in the signal control parameter information corresponding to each of the plurality of traffic signal controllers are calculated. Cycle length and tracking width, blue time in the first cycle, and reference communication Since multiple intersection signal lamp color display information including the elapsed time from the cycle start time in the first cycle of the controller is transmitted to the vehicle, the vehicle responds to the movement of each traffic signal controller based on such information. The time zone of the green light at each intersection can be accurately predicted.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(8) Further, the calculation means is based on the cycle start time in the second cycle corresponding to each of the one or more subordinate traffic signal controllers, and the execution seconds of each step in the second cycle. Calculating a cycle start time in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, and a cycle start time in the third cycle corresponding to each of the one or more subordinate traffic signal controllers. And calculating the execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers based on the cycle length in the third cycle and the offset reference time in the third cycle. And in the third cycle corresponding to each of the one or more subordinate traffic signal controllers It is preferably configured to the serial execution offset regarded as the run offset in the first cycle corresponding to the respective one or more subordinate traffic signal controller.

(9) In addition, the second cycle is a cycle two times before the first cycle, and the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle. The following width in the first cycle, the cycle length in the third cycle that is the cycle immediately before the first cycle, the offset reference time in the third cycle, and the following width in the third cycle And the calculation means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the offset reference time in the third cycle, and the second cycle. Based on the cycle start time and the number of seconds of execution of each step in the second cycle, the one or more An execution offset in the third cycle corresponding to each of the subordinate traffic signal controllers, and the execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, and the third cycle. The execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers is calculated on the basis of the cycle length in and the follow-up width in the third cycle. The information creation device includes the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, the follow-up width in the first cycle, the blue time in the first cycle, and the reference Progress from the start of the cycle in the first cycle of the traffic signal controller And while, which is preferably configured to generate the plurality intersection lights color display information including said execution offset in the one or more subordinate traffic signal controller the first cycle corresponding to each.

According to this configuration, the cycle length and the offset reference time in the third cycle, which is the cycle immediately before the first cycle, included in the signal control parameter information corresponding to each of the one or more subordinate traffic signal controllers, From the cycle start time in the second cycle, which is the cycle two times before the first cycle, and the number of execution seconds of each step, included in the signal control execution information corresponding to each of these subordinate traffic signal controllers, The execution offset in the third cycle corresponding to each traffic signal controller is calculated, and further, the execution offset in the third cycle, the cycle length in the third cycle, and the third cycle included in the signal control parameter Based on the tracking width, the execution offset in the first cycle is calculated. The execution offset in the first cycle, the cycle length and tracking width in the first cycle included in the signal control parameter information corresponding to each of the plurality of traffic signal controllers, the blue time in the first cycle, the reference Since multiple intersection signal light color display information including the elapsed time from the cycle start time in the first cycle of the traffic signal controller is transmitted to the vehicle, the vehicle moves based on the information of each traffic signal controller. It is possible to accurately predict the time zone of the green light at each intersection in accordance with.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(10) Further, the second cycle is a cycle two times before the first cycle, and the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle. The tracking width in the first cycle, the cycle length in the third cycle, which is the cycle before the first cycle, the offset reference time in the third cycle, and the target offset in the third cycle And the following width in the third cycle, and the calculation means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, The offset reference time in the third cycle, the cycle start time in the second cycle, The execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers is calculated based on the execution seconds of each of the floors in the second cycle, and the one or more subordinate traffic is further calculated. Based on the execution offset in the third cycle corresponding to each signal controller, the cycle length in the third cycle, the target offset in the third cycle, and the follow-up width in the third cycle, The execution offset in the first cycle corresponding to each of the one or a plurality of subordinate traffic signal controllers is calculated, and the information generating device corresponds to each of the plurality of traffic signal controllers. The cycle length in the first cycle; the follow-up width in the first cycle; The blue time in the first cycle, the elapsed time from the cycle start time in the first cycle of the reference traffic signal controller, and the first cycle corresponding to each of the one or more subordinate traffic signal controllers It is preferable that the plurality of intersection signal lamp color display information including the execution offset is generated.

According to this configuration, the cycle length and the offset reference time in the third cycle, which is the cycle immediately before the first cycle, included in the signal control parameter information corresponding to each of the one or more subordinate traffic signal controllers, From the cycle start time in the second cycle, which is the cycle two times before the first cycle, and the number of execution seconds of each step, included in the signal control execution information corresponding to each of these subordinate traffic signal controllers, The execution offset in the third cycle corresponding to each traffic signal controller is calculated, and further, the execution offset in the third cycle, the cycle length in the third cycle, and the third cycle included in the signal control parameter information Based on the target offset and tracking width at The execution offset is calculated, the execution offset in the first cycle, the cycle length and the tracking width in the first cycle included in the signal control parameter information corresponding to each of the plurality of traffic signal controllers, and the first cycle Since the multiple intersection signal light color display information including the green time and the elapsed time from the cycle start time in the first cycle of the reference traffic signal controller is transmitted to the vehicle, the vehicle is based on these information and each traffic It is possible to accurately predict the time zone of the green light at each intersection according to the movement of the signal controller.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(11) Further, the calculation means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the offset reference time in the third cycle, and the second cycle. Based on the cycle start time and the execution seconds of each step in the second cycle, an execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers is calculated, and the 1 Or, the execution offset in the third cycle, the cycle length in the third cycle, the target offset in the third cycle, and the follow-up width in the third cycle corresponding to each of a plurality of subordinate traffic signal controllers. And corresponding to each of the one or more subordinate traffic signal controllers. The execution cycle length that is the cycle length executed in the third cycle is calculated, the execution cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, and the execution cycle length in the third cycle Based on the execution offset and the cycle length in the third cycle, the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers may be calculated. preferable.

(12) Further, the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length and a follow-up width that is a width capable of extending or shortening the cycle length in one cycle. Each of the plurality of traffic signal controllers is configured to create signal control execution information including a result of controlling display of a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. The signal control execution information corresponding to each of the plurality of traffic signal controllers includes an execution offset that is an offset executed in the second cycle and an execution time of each of the plurality of stairs constituting the second cycle. And the number of seconds of execution of each floor in the second cycle is included, and other than the reference intersection among the plurality of intersections The cycle length corresponding to each of one or a plurality of traffic signal controllers (subordinate traffic signal controllers) installed at a subordinate intersection that is an intersection, the execution offset in the second cycle, and the respective in the second cycle The information creation device further includes a calculation unit that calculates an execution offset that is an offset executed in the first cycle corresponding to each of the one or more subordinate traffic signal controllers based on the execution seconds of the floor. , The cycle length corresponding to each of the plurality of traffic signal controllers, the following width, the blue time in the direction in which the vehicle enters in the first cycle of each of the plurality of traffic signal controllers, An elapsed time from the start of the cycle in the first cycle of the reference traffic signal controller, and the one or more subordinates Which is preferably configured to generate the plurality intersection lights color display information including said execution offset in the first cycle corresponding to the respective communication signal control unit.

According to this configuration, the cycle length included in the signal control parameter information corresponding to each of the one or more subordinate traffic signal controllers, and the above-described first control information included in the signal control execution information corresponding to each of these subordinate traffic signal controllers. The execution offset in the first cycle is calculated from the execution offset in the second cycle, which is a cycle before one cycle, and the execution seconds in each step, and the execution offset in the first cycle and each of the plurality of traffic signal controllers Including a cycle length and a tracking width included in the signal control parameter information corresponding to, a blue time in the direction in which the vehicle enters, and an elapsed time from the cycle start time in the first cycle of the reference traffic signal controller Since the intersection signal lamp color display information is transmitted to the vehicle, the vehicle is based on this information, Time zone of green light of each line with the movement of the communication signal control unit intersection can be predicted accurately.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(13) Further, the second cycle is a cycle two times before the first cycle, and the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle. And a tracking width in the first cycle and a cycle length in a third cycle that is a cycle immediately preceding the first cycle, and the calculation means includes the one or more dependent traffic signal controls. The one or more dependent traffic signals based on the cycle length in the third cycle, the execution offset in the second cycle, and the execution seconds of each step in the second cycle corresponding to each machine Calculating an execution offset in the third cycle corresponding to each controller, and each of the one or more subordinate traffic signal controllers The execution offset in the corresponding third cycle is regarded as the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers, and the information creation device The cycle length in the first cycle corresponding to each of the traffic signal controllers, the follow-up width in the first cycle, the green time in the first cycle, and the first cycle of the reference traffic signal controller The plurality of intersection signal light color display information including the elapsed time from the cycle start time in the first cycle and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers is configured. It is preferable.

According to this configuration, the cycle length in the third cycle, which is the cycle immediately before the first cycle, included in the signal control parameter information corresponding to each of one or more subordinate traffic signal controllers, and the subordinate traffic From the execution offset in the second cycle that is two cycles before the first cycle included in the signal control execution information corresponding to each signal controller and the execution seconds of each step, each of these subordinate traffic signal controllers The execution offset in the third cycle corresponding to is calculated, and the execution offset in the third cycle and the cycle length and follow-up width in the first cycle included in the signal control parameter information corresponding to each of a plurality of traffic signal controllers. And the blue time in the first cycle and the first cycle of the reference traffic signal controller Because the vehicle transmits multiple intersection signal light color display information including the elapsed time from the cycle start time in the vehicle, the vehicle is based on this information and the time of the green signal at each intersection in accordance with the movement of each traffic signal controller The band can be accurately predicted.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(14) Further, the second cycle is a cycle two times before the first cycle, and the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle. And the follow-up width in the first cycle, the cycle length in the third cycle that is the cycle immediately before the first cycle, and the follow-up width in the third cycle, Based on the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the execution offset in the second cycle, and the execution seconds of each step in the second cycle Calculating an execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers; Based on the execution offset in the third cycle, the cycle length in the third cycle, and the tracking width in the third cycle corresponding to each of one or more subordinate traffic signal controllers, the one or more The execution offset in the first cycle corresponding to each of the subordinate traffic signal controllers is configured to calculate the execution offset in the first cycle corresponding to each of the plurality of traffic signal controllers. The cycle length, the tracking width in the first cycle, the blue time in the first cycle, the elapsed time from the cycle start time in the first cycle of the reference traffic signal controller, and the 1 or The execution off in the first cycle corresponding to each of a plurality of subordinate traffic signal controllers Which is preferably configured to generate the plurality intersection lights color display information including the Tsu bets.

According to this configuration, the cycle length in the third cycle, which is the cycle immediately before the first cycle, included in the signal control parameter information corresponding to each of one or more subordinate traffic signal controllers, and the subordinate traffic From the execution offset in the second cycle that is two cycles before the first cycle included in the signal control execution information corresponding to each signal controller and the execution seconds of each step, each of these subordinate traffic signal controllers Is calculated based on the execution offset in the third cycle, the cycle length in the third cycle, and the tracking width in the third cycle included in the signal control parameter. The execution offset in the first cycle is calculated and Execution offset, the cycle length and tracking width in the first cycle included in the signal control parameter information corresponding to each of the plurality of traffic signal controllers, the blue time in the first cycle, and the reference traffic signal controller Since multiple intersection signal light color display information including the elapsed time from the cycle start time in the first cycle is transmitted to the vehicle, the vehicle is based on such information, and the traffic of each intersection corresponding to the movement of each traffic signal controller is determined. The time zone of the green light can be accurately predicted.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(15) Moreover, it is preferable that the execution offset in the first cycle includes a minimum value and a maximum value.

(16) Further, the second cycle is a cycle two times before the first cycle, and the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle. A tracking width in the first cycle, a cycle length in a third cycle that is a cycle immediately before the first cycle, a target offset that is a target offset in the third cycle, and the third cycle The calculation means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the execution offset in the second cycle, Each of the one or more subordinate traffic signal controllers based on the number of seconds of execution of each floor in the second cycle. The execution offset in the third cycle corresponding to the first cycle, the execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the cycle length in the third cycle, and The execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers is calculated based on the target offset in the third cycle and the tracking width in the third cycle. The information creation device includes the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, the follow-up width in the first cycle, and the blue time in the first cycle. The cycle in the first cycle of the reference traffic signal controller The plurality of intersection signal light color display information including an elapsed time from a start time and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers is configured. Is preferred.

According to this configuration, the cycle length in the third cycle, which is the cycle immediately before the first cycle, included in the signal control parameter information corresponding to each of one or more subordinate traffic signal controllers, and the subordinate traffic The execution offset in the third cycle is calculated from the execution offset in the second cycle that is two cycles before the first cycle and the number of execution seconds of each step included in the signal control execution information corresponding to each signal controller. In addition, based on the execution offset in the third cycle, the cycle length in the third cycle, and the target offset and follow-up width in the third cycle included in the signal control parameter information, the execution in the first cycle Calculate the offset, and the execution offset in this first cycle, The cycle length and tracking width in the first cycle, the blue time in the first cycle, and the cycle in the first cycle of the reference traffic signal controller included in the signal control parameter information corresponding to each of a number of traffic signal controllers Since multiple intersection signal light color display information including the elapsed time from the start time is transmitted to the vehicle, the vehicle uses the information to determine the time zone of the green light at each intersection in accordance with the movement of each traffic signal controller. It can be predicted accurately.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(17) Further, the calculation means includes the cycle length in the third cycle, the execution offset in the second cycle, and the execution cycle in the second cycle corresponding to each of the one or more subordinate traffic signal controllers. An execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers is calculated based on the execution seconds of each floor, and corresponds to each of the one or more subordinate traffic signal controllers. Executed in the third cycle based on the execution offset in the third cycle, the cycle length in the third cycle, the target offset in the third cycle, and the follow-up width in the third cycle. The execution cycle length, which is the cycle length, is calculated, and the one or more dependent traffic signal systems are calculated. Each of the one or more subordinate traffic signal controllers based on the execution cycle length in the third cycle, the execution offset in the third cycle, and the cycle length in the third cycle corresponding to each machine It is preferable that the execution offset in the first cycle corresponding to is calculated.

(18) The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle and a tracking width in the first cycle. Based on the cycle length in the first cycle and the follow-up width in the first cycle corresponding to each traffic signal controller, the vehicle in the first cycle of each of the plurality of traffic signal controllers enters. Further comprising a second calculating means for calculating a minimum value and a maximum value of a blue hour in a direction, wherein the information creating device is a minimum value of the blue hour in the first cycle corresponding to each of the plurality of traffic signal controllers. And the maximum value, the elapsed time from the cycle start time in the first cycle of the reference traffic signal controller, the one or more Which is preferably configured to generate the plurality intersection lights color display information including said execution offset in the first cycle corresponding to the respective dependent traffic signal controller.

According to this configuration, the plurality of intersection signal light color display information including the minimum value and the maximum value of the blue time in the first cycle in the direction in which the vehicle enters each of the plurality of traffic signal controllers is transmitted to the vehicle. Since the minimum and maximum values of these green hours are calculated based on the cycle length and tracking width in the first cycle corresponding to each of these traffic signal controllers, the vehicle is based on these information. The time zone of the green light at each intersection can be predicted to a certain degree of accuracy.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(19) The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length, an offset reference time that is a reference time for measuring an offset, and a cycle length in one cycle. A tracking width that is a width that can be extended or shortened, and each of the plurality of traffic signal controllers has a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. It is configured to create signal control execution information including a result of controlling the display, and the signal control execution information corresponding to each of the plurality of traffic signal controllers includes a cycle start time in the second cycle, And the execution time of each step in the second cycle, which is the execution time of each of the plurality of steps constituting the second cycle. , Based on the cycle length corresponding to each of the plurality of traffic signal controllers, the offset reference time, the cycle start time in the second cycle, and the execution seconds of each floor in the second cycle. , Further comprising calculation means for calculating an execution offset that is an offset executed in the first cycle corresponding to each of the plurality of traffic signal controllers, and the information creating device corresponds to each of the plurality of traffic signal controllers. The cycle length, the following width, the execution offset in the first cycle, the green time in the direction in which the vehicle enters in the first cycle of each of the plurality of traffic signal controllers, and a predetermined reference The multiple intersection signal lamp color display information including the elapsed time from the time point is created. It is preferred.

According to this configuration, the cycle length and the offset reference time included in the signal control parameter information corresponding to each of the plurality of traffic signal controllers, and the above-described first control information included in the signal control execution information corresponding to each of these traffic signal controllers. The execution offset in the first cycle corresponding to each of these traffic signal controllers is calculated from the cycle start time in the second cycle, which is a cycle before one cycle, and the execution seconds in each step, and this first cycle is calculated. , The cycle length and the tracking width included in the signal control parameter information, the blue time in the direction in which the vehicle enters, and the elapsed time from a predetermined reference time point. Since the multiple intersection signal lamp color display information is transmitted to the vehicle, the vehicle Time zone of green light of the intersection line with the movement of the traffic signal controller Les it is possible to accurately predict.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(20) Further, the second cycle is a cycle two times before the first cycle, and the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle. And the following width in the first cycle, the cycle length in the third cycle that is the cycle immediately before the first cycle, and the offset reference time in the third cycle, The signal control execution information corresponding to each signal controller further includes a scheduled cycle length that is a scheduled cycle length in the second cycle, and the calculation means includes each of the plurality of traffic signal controllers. , The cycle length in the third cycle, the offset reference time in the third cycle, An execution offset in the third cycle corresponding to each of the plurality of traffic signal controllers is calculated based on the cycle start time in the cycle and the execution seconds of each step in the second cycle. The plurality of traffic signal controllers based on the execution offset in the third cycle, the cycle length in the third cycle, and the scheduled cycle length in the second cycle corresponding to each of the traffic signal controllers The execution offset in the first cycle corresponding to each of the plurality of traffic signal controllers is configured to calculate the execution offset, the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, The following width in the first cycle and the previous in the first cycle And executing the offset, and the green time in the first cycle, which is preferably configured to generate the plurality intersection lights color display information including the elapsed time from a predetermined reference time.

According to this configuration, the cycle length and the offset reference time in the third cycle, which is the cycle immediately before the first cycle, included in the signal control parameter information corresponding to each of the plurality of traffic signal controllers, and these traffics From the cycle start time in the second cycle that is two cycles before the first cycle included in the signal control execution information corresponding to each signal controller and the number of execution seconds of each floor, each of these traffic signal controllers The execution offset in the third cycle corresponding to is calculated, and further, the execution offset in the third cycle, the cycle length in the third cycle, and the scheduled cycle length in the second cycle included in the signal control execution information, Based on this, the execution offset in the first cycle is calculated, and this second A plurality of intersection signal lamp colors including an execution offset in a cycle, a cycle length and a tracking width in the first cycle included in the signal control parameter information, a blue time in the first cycle, and an elapsed time from a predetermined reference time point Since the display information is transmitted to the vehicle, the vehicle can accurately predict the time zone of the green light at each intersection in accordance with the movement of each traffic signal controller based on the information.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(21) Further, the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length and a follow-up width that is a width capable of extending or shortening the cycle length in one cycle. Each of the plurality of traffic signal controllers is configured to create signal control execution information including a result of controlling display of a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. The signal control execution information corresponding to each of the plurality of traffic signal controllers includes an execution offset that is an offset executed in the second cycle and an execution time of each of the plurality of stairs constituting the second cycle. And the number of seconds of execution of each floor in the second cycle, corresponding to each of the plurality of traffic signal controllers Executed in the first cycle corresponding to each of the plurality of traffic signal controllers based on the cycle length, the execution offset in the second cycle, and the execution seconds of each floor in the second cycle The information generation device further includes a calculation unit that calculates an execution offset that is an offset, and the information generation device includes the cycle length corresponding to each of the plurality of traffic signal controllers, the tracking width, and the execution offset in the first cycle. Generating the plurality of intersection signal light color display information including a blue time in a direction in which the vehicle enters in the first cycle and an elapsed time from a predetermined reference time for each of the plurality of traffic signal controllers. It is preferable that it is comprised.

According to this configuration, the cycle length included in the signal control parameter information corresponding to each of the plurality of traffic signal controllers, and the first cycle included in the signal control execution information corresponding to each of these traffic signal controllers. The execution offset in the first cycle is calculated from the execution offset in the second cycle and the number of execution seconds in each step, and the execution offset in the first cycle, the cycle length included in the signal control parameter information, and Since the multiple intersection signal lamp color display information including the following width, the blue time in the direction in which the vehicle enters, and the elapsed time from the predetermined reference time point is transmitted to the vehicle, the vehicle is configured based on the information. It is possible to accurately predict the time zone of the green light at each intersection according to the movement of the traffic signal controller.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(22) In addition, the second cycle is a cycle two previous to the first cycle, and the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle. And a tracking width in the first cycle and a cycle length in a third cycle that is a cycle immediately preceding the first cycle, and the signal control corresponding to each of the plurality of traffic signal controllers The execution information further includes a scheduled cycle length that is a scheduled cycle length in the second cycle, and the calculation means includes the cycle in the third cycle corresponding to each of the plurality of traffic signal controllers. Based on the length, the cycle start time in the second cycle, and the execution seconds of each step in the second cycle , Calculating an execution offset in the third cycle corresponding to each of the plurality of traffic signal controllers, and further executing an offset in the third cycle corresponding to each of the plurality of traffic signal controllers, and in the third cycle The information creation is configured to calculate the execution offset in the first cycle corresponding to each of the plurality of traffic signal controllers based on a cycle length and the scheduled cycle length in the second cycle. The apparatus includes: the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers; the follow-up width in the first cycle; the execution offset in the first cycle; Including the blue time and the elapsed time from a predetermined reference time. It is preferably configured to create an intersection lights color display information.

According to this configuration, the cycle length in the third cycle, which is the cycle before the first cycle, included in the signal control parameter information corresponding to each of the plurality of traffic signal controllers, and each of these traffic signal controllers From the execution offset in the second cycle that is two cycles before the first cycle included in the signal control execution information corresponding to, and the execution seconds of each step, the first corresponding to each of these traffic signal controllers An execution offset in three cycles is calculated, and further based on the execution offset in the third cycle, the cycle length in the third cycle, and the planned cycle length in the second cycle included in the signal control execution information, The execution offset in the first cycle is calculated, and the execution offset in this first cycle is calculated. Multiple intersection signal lamp color display information including a set, a cycle length and a tracking width in the first cycle included in the signal control parameter information, a blue time in the first cycle, and an elapsed time from a predetermined reference time point. Since the information is transmitted to the vehicle, the vehicle can accurately predict the time zone of the green light at each intersection in accordance with the movement of each traffic signal controller based on the information.
Therefore, the vehicle can appropriately calculate the range of the traveling speed that can pass through the plurality of intersections during the green light.

(23) Further, the signal control parameter information corresponding to each of the plurality of traffic signal controllers further includes a target offset that is a target offset in the first cycle, Furthermore, it is preferable that the plurality of intersection signal light color display information including the target offset in the first cycle corresponding to each of the plurality of traffic signal controllers is created.

(24) Further, it is preferable that the plurality of intersection signal lamp color display information includes a sensitivity range of point sensitive control corresponding to each of the plurality of traffic signal controllers.
According to this configuration, the vehicle that has received the multiple intersection signal lamp color display information can predict the time zone of the green signal at each intersection in consideration of the sensitivity width of the point sensitive control included in the vehicle. It is possible to appropriately calculate the range of travel speed that can pass through the intersection during the green light.

(25) Further, based on the sensitivity width of the point sensitive control corresponding to each of the plurality of traffic signal controllers, each of the plurality of traffic signal controllers is blue in the direction in which the vehicle enters in the first cycle. It further comprises third calculation means for calculating a minimum value and a maximum value of time, and the information creating device calculates the minimum value and the maximum value of the blue time in the first cycle corresponding to each of the plurality of traffic signal controllers. It is preferable that the plurality of intersection signal lamp color display information is configured to be included.

  According to this configuration, in order to create a plurality of intersection signal light color display information including the minimum value and the maximum value of the blue time calculated from the sensitivity width of each of the plurality of traffic signal controllers, the vehicle that has received this information Can predict the time zone of the green light at each intersection with a small amount of calculation based on the minimum value and the maximum value of the green time included in this information.

(26) Further, the signal control parameter information corresponding to each of the plurality of traffic signal controllers further includes a split in the first cycle, and the third calculation means includes the plurality of traffic signals. Based on the split in the first cycle corresponding to each controller, the blue time (hereinafter referred to as “reference”) for each of the plurality of traffic signal controllers in the direction in which the vehicle in the first cycle enters. And the minimum value of the sensitivity width is added to the reference blue time to calculate the minimum value of the blue time, and the maximum value of the sensitivity width is added to the reference blue time. It is preferable that the maximum of the blue hour is calculated.

(27) Further, the signal control parameter information corresponding to each of the plurality of traffic signal controllers further includes a split in the first cycle, and the third calculation means includes the plurality of traffic signals. Based on the split in the first cycle corresponding to each controller, each of the plurality of traffic signal controllers becomes a reference blue time in the direction in which the vehicle enters in the first cycle (reference blue time) Further, the minimum value of the sensitivity width is calculated by adding the minimum value of the sensitivity width to the reference blue time and subtracting the maximum value of the sensitivity width, and the sensitivity width of the sensitivity width is calculated in the reference blue time. It is preferable that the maximum of the blue time is calculated by adding the maximum value and subtracting the minimum value of the sensitivity width.

  According to this configuration, in order to create a plurality of intersection signal light color display information including the minimum and maximum values of the blue hours calculated in consideration of the sensitivity correction of the point sensitive control of each of the plurality of traffic signal controllers, this information is used. The received vehicle can more accurately predict the time zone of the green light at each intersection based on the minimum and maximum values of the green time included in this information.

(28) The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length, an offset reference time that is a reference time for measuring an offset, and a cycle length in one cycle. A tracking width that is a width that can be extended or shortened, and each of the plurality of traffic signal controllers has a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. It is configured to create signal control execution information including a result of controlling the display, and the signal control execution information corresponding to each of the plurality of traffic signal controllers includes a cycle start time in the second cycle, The execution time of each step in the second cycle, which is the execution time of each of the plurality of steps constituting the second cycle, and the second time 1 or more installed at subordinate intersections that are intersections other than the reference intersection among the plurality of intersections, including sensitivity fluctuation values that are extended or shortened times as a result of executing point sensitivity control in the vehicle The cycle length corresponding to each traffic signal controller (subordinate traffic signal controller), the offset reference time, the cycle start time in the second cycle, and the execution seconds of each step in the second cycle And each of the one or more subordinate traffic signal controllers based on the sensitivity variation value in the second cycle and the sensitivity width of the point sensitive control corresponding to each of the one or more subordinate traffic signal controllers. The information creation device further comprises a calculation means for calculating an execution offset that is an offset executed in the corresponding first cycle. Is the cycle length corresponding to each of the plurality of traffic signal controllers, the follow-up width, and the green time in the direction in which the vehicle enters in the first cycle of each of the plurality of traffic signal controllers, The plurality of intersections including an elapsed time from the cycle start time in the first cycle of the reference traffic signal controller and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers. It is preferable to be configured to create signal lamp color display information.

  According to this configuration, in order to create multiple intersection signal light color display information including the minimum value and the maximum value of the execution offset calculated in consideration of the sensitivity correction of the point sensitive control of each of the plurality of traffic signal controllers, this information is used. The received vehicle can more accurately predict the time zone of the green light at each intersection based on the minimum value and the maximum value of the execution offset included in this information.

(29) Further, the signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length and a follow-up width that is a width capable of extending or shortening the cycle length in one cycle. Each of the plurality of traffic signal controllers is configured to create signal control execution information including a result of controlling display of the signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. The signal control execution information corresponding to each of the plurality of traffic signal controllers includes an execution offset that is an offset executed in the second cycle and an execution of each of the plurality of steps constituting the second cycle. The execution time of each floor in the second cycle, which is time, and the result of executing point sensitive control in the second cycle Includes one or more traffic signal controllers (subordinate traffic signal control units) installed at subordinate intersections that are intersections other than the reference intersection among the plurality of intersections. Machine) the cycle length corresponding to each, the execution offset in the second cycle, the execution seconds of each step in the second cycle, the sensitivity variation value in the second cycle, and the one or more Calculation for calculating an execution offset that is an offset executed in the first cycle corresponding to each of the one or more subordinate traffic signal controllers based on the sensitivity width of the point sensitive control corresponding to each subordinate traffic signal controller. The information creation device further includes a cycle length corresponding to each of the plurality of traffic signal controllers, and the following width. Each of the plurality of traffic signal controllers, a blue time in a direction in which the vehicle enters in the first cycle, an elapsed time from the cycle start time in the first cycle of the reference traffic signal controller, It is preferable that the plurality of intersection signal lamp color display information including the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers is generated.

  According to this configuration, in order to create multiple intersection signal light color display information including the minimum value and the maximum value of the execution offset calculated in consideration of the sensitivity correction of the point sensitive control of each of the plurality of traffic signal controllers, this information is used. The received vehicle can more accurately predict the time zone of the green light at each intersection based on the minimum value and the maximum value of the execution offset included in this information.

(30) In addition, the information creation device may include a shortest and a longest start time of a green signal in a direction in which the vehicle enters in the first cycle, and an end time of the green signal for each of the plurality of traffic signal controllers. It is preferable that the plurality of intersection signal lamp color display information including the shortest and longest is generated.
According to this configuration, the vehicle that has received the multiple intersection signal light color display information determines the time zone of the green signal from the shortest and longest start time of the green light and the shortest and longest end time of the green signal included in each intersection included in the vehicle. Since it can be grasped directly, it is possible to easily calculate the range of travel speeds that can pass through these intersections during the green light.

(31) Moreover, it is preferable that the said reference | standard intersection is an intersection which the said vehicle arrives first.

(32) Further, the reference intersection is an important intersection, and a subordinate intersection that is an intersection other than the reference intersection among the plurality of intersections is an intersection included in the same subarea as the important intersection. Since a plurality of intersections operate with the same cycle length and have a system, the vehicle is particularly preferable because it easily passes through these intersections with a green light.

(33) A traffic system according to a second aspect of the present invention is a traffic system for providing a vehicle with a plurality of intersection signal lamp color display information including information related to a display schedule of a signal lamp color of a signal lamp installed at each of a plurality of intersections. A plurality of traffic signal controllers that control the display of the signal color of the signal lamps installed at each intersection of the traffic lights, and whether or not all of the plurality of traffic signal controllers are in synchronization in a predetermined first cycle. A determination unit configured to determine; and an information generation device configured to generate the plurality of intersection signal lamp color display information in the first cycle when it is determined that the determination unit is in synchronization.

(34) A traffic system according to a third aspect of the present invention is a traffic system for providing a vehicle with a plurality of intersection signal lamp color display information including information related to a display schedule of a signal lamp color of a signal lamp installed at each of a plurality of intersections. A plurality of traffic signal controllers that control the display of the signal color of the signal lamps installed at each intersection of the traffic lights, and whether or not each of the plurality of traffic signal controllers is in synchronization in a predetermined first cycle. Information relating to the display schedule of the signal lamp color of the signal lamp device in the first cycle is determined only for the traffic signal controller that is determined to be synchronized among the plurality of traffic signal controllers. And an information creating device for creating the plurality of intersection signal lamp color display information.

(35) A traffic system according to a fourth aspect of the present invention is a traffic system for providing a vehicle with a plurality of intersection signal lamp color display information including information related to a display schedule of a signal lamp color of a signal lamp installed at each of a plurality of intersections. A plurality of traffic signal controllers that control the display of the signal color of the signal lamps installed at each intersection of the traffic lights, and all of the plurality of traffic signal controllers are synchronized within a predetermined number of cycles from a predetermined first cycle. A determination unit that determines whether or not the information is generated; and an information generation device that generates the plurality of intersection signal lamp color display information in the first cycle when it is determined that the determination unit is synchronized.

(36) An information creation device according to a fifth aspect of the present invention is an information creation device for creating a plurality of intersection signal lamp color display information including information relating to a display schedule of a signal lamp color of a signal lamp installed at each of a plurality of intersections. The shortest and longest start time of the green light in the direction in which the vehicle enters in the predetermined first cycle of each of the plurality of traffic signal controllers that control the display of the signal lamp color of the signal lamp installed at each intersection of the A creation means for creating the plurality of intersection signal lamp color display information including the shortest and longest end points of the green light is provided.

(37) The data structure according to the sixth aspect of the present invention is that the plurality of intersections used in a traffic system for providing a vehicle with a plurality of intersection signal lamp color display information including information related to a display schedule of signal lamp colors of signal lamps installed at a plurality of intersections. It is a data structure of signal lamp color display information, and controls the display of the signal lamp color of the signal lamp installed at each of the plurality of intersections, corresponding to each of a plurality of traffic signal controllers installed at each of the plurality of intersections. A traffic length controller in a predetermined first cycle and a green time in a direction in which the vehicle enters and a traffic signal controller (reference traffic signal controller) installed at one of the intersections (reference intersection) ) The elapsed time from the cycle start time in the first cycle, and a subordinate that is an intersection other than the reference intersection among the plurality of intersections Is intended to include a target offset is an offset as a target in the first cycle corresponding to each installed in the crosspoint 1 or more traffic signal controller (dependent traffic signal controller).

(38) A data structure according to a seventh aspect of the present invention is that the plurality of intersections used in a traffic system for providing a vehicle with a plurality of intersection signal light color display information including information related to a display schedule of a signal light color of a signal light device installed at each of the plurality of intersections It is a data structure of signal lamp color display information, and controls the display of the signal lamp color of the signal lamp installed at each of the plurality of intersections, corresponding to each of a plurality of traffic signal controllers installed at each of the plurality of intersections. , A cycle length in a predetermined first cycle, a tracking width that can be extended or shortened in a cycle length, a blue time in a direction in which the vehicle enters, and one of the plurality of intersections Progress from the start of the cycle in the first cycle of the traffic signal controller (reference traffic signal controller) installed at the intersection (reference intersection) One of the first cycles corresponding to each of one or more traffic signal controllers (subordinate traffic signal controllers) installed at a subordinate intersection that is an intersection other than the reference intersection among the plurality of intersections And an execution offset which is an offset executed in the third cycle which is the previous cycle.

(39) The data structure according to the eighth aspect of the present invention is that the plurality of intersections used in the traffic system for providing the vehicle with a plurality of intersection signal light color display information including information related to the display schedule of the signal light color of the signal lamp installed at each of the plurality of intersections. It is a data structure of signal lamp color display information, and controls the display of the signal lamp color of the signal lamp installed at each of the plurality of intersections, corresponding to each of a plurality of traffic signal controllers installed at each of the plurality of intersections. , A cycle length in a predetermined first cycle, a tracking width that can be extended or shortened in a cycle length, a blue time in a direction in which the vehicle enters, and one of the plurality of intersections Progress from the start of the cycle in the first cycle of the traffic signal controller (reference traffic signal controller) installed at the intersection (reference intersection) And executed in the first cycle corresponding to each of one or more traffic signal controllers (subordinate traffic signal controllers) installed at subordinate intersections other than the reference intersection among the plurality of intersections And an execution offset which is an offset.

(40) A data structure according to a ninth aspect of the present invention is that the plurality of intersections used in a traffic system for providing a vehicle with a plurality of intersection signal light color display information including information related to display schedules of signal light colors of signal light devices installed at a plurality of intersections. It is a data structure of signal lamp color display information, and controls the display of the signal lamp color of the signal lamp installed at each of the plurality of intersections, corresponding to each of a plurality of traffic signal controllers installed at each of the plurality of intersections. From the cycle start time of the first cycle of the traffic signal controller (reference traffic signal controller) installed at one of the intersections (reference intersection) of the cycle length in the predetermined first cycle Lapse time and blue time in the direction in which the vehicle enters, and a subordinate that is an intersection other than the reference intersection among the plurality of intersections An execution offset that is an offset executed in the first cycle corresponding to each of one or a plurality of traffic signal controllers (subordinate traffic signal controllers) installed at a difference point, and a minimum of blue time in the direction in which the vehicle enters Value and maximum value.

(41) Further, it is preferable that the data structure further includes a sensitivity range of point sensitive control corresponding to each of the plurality of traffic signal controllers.

(42) Further, it is preferable that the blue time in the direction in which the vehicle enters in the first cycle corresponding to each of the plurality of traffic signal controllers includes a minimum value and a maximum value.

(43) Moreover, it is preferable that the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers includes a minimum value and a maximum value.

(44) The data structure according to the tenth aspect of the present invention is that the plurality of intersections used in the traffic system for providing the vehicle with a plurality of intersection signal lamp color display information including information related to the display schedule of the signal lamp color of the signal lamp installed at each of the plurality of intersections. It is a data structure of signal lamp color display information, and controls the display of the signal lamp color of the signal lamp installed at each of the plurality of intersections, corresponding to each of a plurality of traffic signal controllers installed at each of the plurality of intersections. A traffic signal controller (reference traffic) installed at one of the plurality of intersections (reference intersection) and the shortest and longest end points of the green light in the direction in which the vehicle enters in a predetermined first cycle A starting point of a green signal in the direction in which the vehicle enters in the first cycle of the signal controller, and the reference intersection among the plurality of intersections The shortest start time of the green light in the direction in which the vehicle enters in the first cycle corresponding to each of one or a plurality of traffic signal controllers (subordinate traffic signal controllers) installed at a dependent intersection that is an intersection other than Including the longest.

(45) The data structure according to the eleventh aspect of the invention is that the plurality of intersections used in a traffic system for providing a vehicle with a plurality of intersection signal lamp color display information including information related to display schedules of signal lamp colors of signal lamps installed at a plurality of intersections. The data structure of the signal lamp color display information, which is installed at each of the plurality of intersections, which controls the elapsed time from a predetermined reference time point and the display of the signal lamp color of the signal lamp installed at each of the plurality of intersections. The cycle length in a predetermined first cycle, the blue time in the direction in which the vehicle enters, the execution offset that is an executed offset, and the extension or reduction of the cycle length in one cycle, corresponding to each of a plurality of traffic signal controllers And a follow-up width which is a possible width.

  ADVANTAGE OF THE INVENTION According to this invention, the information regarding the display schedule of the signal light color of a some traffic signal controller can be collectively transmitted to a vehicle, maintaining accuracy.

It is a schematic diagram which shows the outline | summary of the traffic system which concerns on this invention. It is a block diagram which shows an example of a structure of a central apparatus. It is a figure which shows an example of the format of signal control command information. It is a figure which shows the flow of the process which estimates the cycle from which a central apparatus is synchronizing. It is a figure which shows an example of the format of reference | standard intersection signal information. It is a block diagram which shows an example of a structure of an information relay apparatus. It is a figure which shows an example of the format of the green wave signal information in Embodiment 1. The cycle at the time when a signal control parameter such as cycle length and offset is newly set (updated) for the traffic signal controller at each intersection that constitutes the intersection to be provided by the central device (the cycle before update) and the cycle before that It is a figure which shows the execution result of each signal control of these traffic signal controllers in a certain cycle before an update, and the operation result of a central apparatus. Indicates the cycle length, target offset, and offset reference time included in the signal control command information sent by the central unit to these traffic signal controllers in the cycle before the update of the traffic signal controllers at each intersection constituting the provided intersection FIG. The cycle length, target offset, and tracking width included in the signal control command information sent by the central unit to these traffic signal controllers in the pre-update cycle of traffic signal controllers at each intersection that constitutes the target intersection. is there. Signal control execution results, central device and information relay of each traffic signal controller in the next cycle (updated cycle = 1st cycle) of the traffic signal controller at each intersection constituting the provided intersection It is a figure which shows the operation result of an apparatus. In the next cycle (second cycle) of the traffic signal controller at each intersection that constitutes the provided intersection, the signal control execution result of each of these traffic signal controllers, the operation result of the central device and the information relay device FIG. In the next cycle (third cycle) of the traffic signal controller at each intersection constituting the provided intersection, the signal control execution result of each of these traffic signal controllers, the operation result of the central device and the information relay device FIG. It is a figure which shows the content of the green wave signal information in the 2nd cycle to the 4th cycle which the information relay apparatus of Embodiment 1 produced in the 1st cycle to the 3rd cycle. It is a figure which shows the content of the green wave signal information in the 2nd cycle to the 4th cycle which the information relay apparatus of Embodiment 2 produced in the 1st cycle to the 3rd cycle. It is a figure which shows the content of the green wave signal information in the 2nd cycle to the 4th cycle which the information relay apparatus of Embodiment 3 produced in the 1st cycle to the 3rd cycle. It is a figure which shows an example of the format of the green wave signal information in Embodiment 4. In Embodiment 4, it is a figure which shows the flow of the process in which a central apparatus calculates the execution offset in the 1st cycle. In Embodiment 4, it is a figure which shows the flow of the process in which a central apparatus calculates the execution offset in the 2nd cycle. It is a figure which shows the content of the green wave signal information in the 2nd cycle to the 4th cycle which the information relay apparatus of Embodiment 4 produced in the 1st cycle to the 3rd cycle. It is a figure which shows an example of the format of the green wave signal information in Embodiment 5. In Embodiment 5, it is a figure which shows the flow of a process in which the central apparatus calculates the execution offset in the 2nd cycle. In Embodiment 5, it is a figure which shows the flow of a process in which a central apparatus calculates the execution offset in the 3rd cycle. It is a figure which shows the content of the green wave signal information in the 2nd cycle to the 4th cycle which the information relay apparatus of Embodiment 5 created in the 1st cycle to the 3rd cycle. It is a figure which shows an example of the format of the green wave signal information in Embodiment 6. It is a figure which shows an example of the format of the green wave signal information in Embodiment 7. FIG. 20 is a diagram illustrating an example of a format of green wave signal information in an eighth embodiment. It is a figure which shows an example of the format of the green wave signal information in Embodiment 9. It is a figure which shows an example of the format of the green wave signal information in Embodiment 10. It is a figure which shows an example of the format of the green wave signal information in Embodiment 11. In Embodiment 12, it is a figure which shows the flow of a process in which the central apparatus calculates the execution offset in the 2nd cycle. In Embodiment 12, it is a figure which shows the flow of a process in which the central apparatus calculates the execution offset in the 3rd cycle. It is a figure which shows an example of the format of the green wave signal information in Embodiment 12.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[1. Embodiment 1]
[Overall system configuration]
FIG. 1 is a schematic diagram showing an outline of a traffic system according to the present invention. The traffic system includes a central device 1, a traffic signal controller 2, an information relay device (information creation device) 3, a roadside communication device 4, and the like.
The central device 1 is installed in a traffic control center, and a traffic signal controller 2 (in FIG. 1, a traffic signal controller in each intersection IS (intersections ISA, ISB, ISC, ISD in FIG. 1)). 2A, 2B, 2C, 2D) and the information relay apparatus 3 via a communication line. The central device 1 may be installed on the road instead of being installed in the traffic control center.

On the main road RM, there are an intersection ISA that intersects the slave road RSA, an intersection ISB that intersects the slave road RSB, an ISC that intersects the slave road RSC, and an intersection ISD that intersects the slave road RSD. The intersection ISA is an important intersection, and the intersection ISB , ISC, ISD are general intersections included in the same subarea as the intersection ISA.
Here, definitions of each term of important intersection, general intersection, and subarea are as follows.
・ Important intersections: Intersections that usually have a large load factor and often become a bottleneck are called important intersections. In general, intersections between trunk and semi-highway roads fall under this category.
-General intersections: Traffic demands on secondary roads are less than important intersections. For example, an intersection that simply needs to ensure green light for crossing pedestrians is called a general intersection.
• Subarea: The smallest unit of intersection group that always gives the same cycle length is called a subarea. Note that the cycle of displaying the signal lamp color is called one cycle, and the time required for one cycle is called the cycle length.

  The information relay device 3 and the roadside communication device 4 are installed at an important intersection (intersection ISA in FIG. 1), and the information relay device 3 is installed at the important intersection via a communication line (FIG. 1). Then, the traffic signal controller 2A) and the roadside communication device 4 are also connected, and have a function of relaying communication data between the central device 1 and the roadside communication device 4.

The roadside communication device 4 plans to display the signal color of each traffic signal controller 2 at a plurality of intersections IS including the intersection ISA with respect to the in-vehicle device 5 mounted on the vehicle 6 traveling on the main road RM toward the intersection ISA. Green wave signal information (multiple intersection signal lamp color display information) is transmitted.
The in-vehicle device 5 receives this green wave signal information, determines the time zone of the green signal in the direction of the main road RM of the traffic signal controller 2 of each intersection IS based on this information, and passes each intersection IS between the green signals. The range of the optimum traveling speed is calculated so that it can be performed. Since the vehicle 6 travels within the range of the traveling speed and can pass through each intersection IS during the green light, the emission amount of carbon dioxide (CO2) and nitrogen oxides (NOx) should be reduced. Can do.

A plurality of intersections IS (intersections ISA, ISB, ISC, and ISD in FIG. 1) that are targets for including signal display schedules in the green wave signal information are hereinafter referred to as provision target intersections.
Provided intersections are a reference intersection that is an intersection that first passes when viewed from the vehicle 6 of the in-vehicle device 5 that receives information from the roadside communication device 4, and one or more other intersections that subsequently pass. Consists of subordinate intersections. In FIG. 1, the intersection ISA is a reference intersection, and the intersections ISB, ISC, and ISD are subordinate intersections.

As shown in FIG. 1, the reference intersection in the provision target intersection is an important intersection, and the subordinate intersection is a general intersection included in the same subarea as the important intersection. When provided to the apparatus 5), the intersections to be provided operate with the same cycle length and are connected to the system, so that the vehicle 6 is particularly preferable because it easily passes through these intersections with a green light.
The reference intersection at the provision target intersection may not be an important intersection but may be a general intersection, and the dependent intersection may include not only a general intersection but also an important intersection.
Further, the provided intersection may not be composed only of intersections included in the same subarea. For example, the provided intersection is included in a subarea having a reference intersection and a dependent intersection is included in another subarea. Also good.

[Central device 1]
The central device 1 collects vehicle detection information from vehicle detectors (not shown) installed on each road, and calculates traffic information around each intersection IS from this information. And based on this traffic information, the signal control parameter of the traffic signal controller 2 of each intersection IS is calculated. The signal control parameter is information necessary for the traffic signal controller 2 to control lighting, extinguishing and blinking of each signal lamp of the signal lamp installed at the intersection IS, and details will be described later. The central device 1 creates signal control command information including signal control parameters and transmits it to the corresponding traffic signal controller 2.

FIG. 2 is a block diagram illustrating an example of the configuration of the central apparatus. The central device 1 includes a calculation unit 101, a storage unit 102, a transmission / reception unit 103, a clock unit 104, and the like.
The arithmetic unit 101 is composed of one or a plurality of computers, and controls the entire apparatus. In addition, the calculation unit 101 performs various calculation processes such as a provision target intersection signal information creation process to be described later. These various calculation processes are performed by the computer of the calculation unit 101 executing a computer program recorded in a predetermined storage medium such as a CD-ROM or a hard disk.

The storage unit 102 includes a hard disk, a semiconductor memory, and the like, and stores various calculation processing results by the calculation unit 101 and various types of information received by the transmission / reception unit 103.
The transmission / reception unit 103 receives vehicle detection information sent from the vehicle detector every predetermined time (for example, 30 seconds), signal control execution information sent from the traffic signal controller 2 for each cycle, and the like. The signal control execution information is information including a signal control execution result of the traffic signal controller 2 and will be described in detail later.
The transmission / reception unit 103 transmits signal control command information and the like to the traffic signal controller 2, and transmits provision target intersection signal information (multiple intersection signal information) to the information relay device 3. The provision target intersection signal information is information created by the provision target intersection signal information creation process, and details will be described later.
The clock unit 104 acquires time information.

The calculation unit 101 calculates traffic information around each intersection IS based on the vehicle sensing information received by the transmission / reception unit 103 at predetermined time intervals, and the traffic signal controller 2 of each intersection IS based on this traffic information. Set signal control parameters.
The signal control parameters include cycle length, split, offset, etc., and the definitions of split and offset are as follows.
・ Split: The right of access given to each inflow path at the intersection is called “presentation”, and the time ratio of each indication in one cycle is called “split”.
• Offset: In system control, the deviation that is given to the start of one cycle of each traffic signal controller is called offset. The deviation of the reference intersection from the start point of one cycle is called an absolute offset, and the deviation of the adjacent intersection from the start point of one cycle is called a relative offset.
For example, the calculation unit 101 sets a cycle length and an offset every 15 minutes, and sets a split every minute. In the first embodiment, an absolute offset is set, and a reference intersection is an important intersection (intersection ISA in FIG. 1) in the intersection group included in the subarea.

The calculation unit 101 creates signal control command information including the set signal control parameters, and transmits the signal control command information to the traffic signal controller 2 corresponding to a predetermined time (for example, immediately before the end of the cycle of the traffic signal controller 2).
FIG. 3 is a diagram illustrating an example of the format of the signal control command information.
In the signal information command information, in addition to the cycle length, split, and offset (value) (the offset (value) included in the signal control command information is hereinafter referred to as a target offset), the offset reference time, the tracking width (in FIG. 3) Included in the offset operation type).
The offset reference time is a reference time when counting the number of seconds of the offset, and the cycle start time is a time obtained by adding the offset seconds and the multiple of the cycle length to the offset reference time.
As described above, the tracking width is a fluctuation amount of the cycle length that can be changed in one cycle. In the direction of shortening the cycle length, the cycle length is set to 1/8 (represented as -1/8).

Hereinafter, the provision target intersection signal information creation process performed by the calculation unit 101 of the central apparatus 1 will be described.
The traffic signal controller 2 includes signal control execution information including a signal control execution result in a previous cycle which is a cycle immediately before the current cycle at a predetermined time after the cycle start (for example, 3 seconds after the cycle start time). To the central device 1. The signal control execution information includes the offset executed by the traffic signal controller 2 in the previous cycle, the cycle start time, the execution time of each step (step) constituting the cycle, and the sensitive fluctuation value (shortened or extended) of the point sensitive control. ) Etc. are included. The offset included in the signal control execution information is referred to as an execution offset. In the present embodiment, an absolute offset is adopted as the offset.
The calculation unit 101 of the central device 1 has each intersection IS constituting the provision target intersection at a predetermined time (for example, at least 5 seconds before the end of the cycle of the traffic signal controller 2 of the reference intersection of the provision target intersections). The cycle start time, the number of execution seconds of each step included in the signal control execution information received most recently (that is, the current cycle) from the traffic signal controller 2 (that is, the cycle start time in the previous cycle, the execution seconds of each step) And the cycle length, target offset, offset reference time, follow-up width, etc. included in the signal control command information sent most recently (ie, previous cycle) to these traffic signal controllers 2 (ie, Based on the cycle length in the current cycle, target offset, offset reference time, follow-up width, etc.) Is equal to or becomes in sync in the next cycle is a cycle after one of the current cycle.

  Here, in synchronization, the traffic signal controller 2 executes signal control so as to reproduce the cycle length, split, target offset, offset reference time, etc. included in the signal control command information from the central device 1. The state that is. For example, when the signal control command information includes information such as a cycle length of 100 seconds, a main road direction and a secondary road direction split of 50 seconds: 50 seconds, a target offset of 10 seconds, and an offset reference time of 10:00:00, The cycle length is 100 seconds, the split between the main road direction and the secondary road direction is 50 seconds: 50 seconds, the execution offset is 10 seconds, the cycle start time is 10: 00: 00 + 10 seconds + 100 seconds × n (n is a natural number) Thus, when the signal control is executed, the traffic signal controller 2 is in synchronization in the cycle.

Specifically, the arithmetic unit 101 of the central device 1 firstly follows the cycle in which the cycle length and offset of the traffic signal controller 2 at the reference intersection of the provided intersections are updated (hereinafter referred to as the pre-update cycle). The signal control command transmitted in the pre-update cycle for each traffic signal controller 2 at each intersection IS that constitutes the provided intersection at a predetermined time (for example, 10 seconds before) after the end point (hereinafter referred to as the post-update cycle) The target offset included in the information (that is, the target offset in the post-update cycle) is compared with the execution offset in the post-update cycle.
Here, the execution offset in the post-update cycle is calculated as follows. First, the calculation unit 101 executes the cycle start time and the execution seconds of each step (that is, the number of execution times of each step (that is, The cycle start time in the post-update cycle is calculated based on the cycle start time in the pre-update cycle and the number of execution seconds of each layer). Next, the calculation unit 101 is based on the calculated cycle start time in the post-update cycle and the cycle length and offset reference time (that is, the cycle length and offset reference time in the post-update cycle) included in the signal control command information. The execution offset in the post-update cycle is calculated.

If the value of the target offset in the post-update cycle and the execution offset in the post-update cycle are the same, the calculation unit 101 determines that synchronization is being performed in the post-update cycle. Based on the cycle length, target offset, and tracking width included in the command information (that is, cycle length, target offset, tracking width in the post-update cycle) and the calculated execution offset in the post-update cycle, Hereinafter, it is predicted whether or not (following simply referred to as tracking) is completed and synchronization is in progress. Then, the calculation unit 101 stores, in the storage unit 102, cycles that are in synchronization with each of the traffic signal controllers 2.
FIG. 4 summarizes the flow of processing for predicting a cycle in which the above central devices are synchronized.

  Then, the calculation unit 101 controls each traffic signal stored in the storage unit 102 at the predetermined time point (at least 5 seconds before the cycle end time of the traffic signal controller 2 at the reference intersection of the provided intersections). If it is determined that all of these traffic signal controllers 2 are synchronized in the next cycle based on the cycle in which the aircraft 2 is in synchronization, the traffic signal controllers 2 are scheduled to be transmitted in the current cycle. The blue time (also referred to as the reference blue time) in the main road direction is calculated based on the signal control parameter included in the signal control command information (or already transmitted in the current cycle). This blue time may include the time of a blue arrow in addition to the time of the green light. Then, an offset (target offset) and cycle length (that is, a target in the next cycle) included in the signal control command information that is scheduled to be transmitted to each of these traffic signal controllers 2 in the current cycle (or already transmitted in the current cycle). The provided intersection signal information including the offset and the cycle length) and the calculated blue time in the main road direction is generated and transmitted to the information relay device 3.

  On the other hand, when it is determined that all of the traffic signal controllers 2 at the intersection IS constituting the provided intersection are not synchronized in the next cycle, the arithmetic unit 101 sets the target offset of each of the traffic signal controllers 2, Provided intersection signal information in which a null value is set as the cycle length and the blue time in the main road direction is transmitted to the information relay device 3. Instead of transmitting the provision target intersection signal information in which a null value is set, information indicating that the provision target intersection signal information is not created may be transmitted.

[Traffic signal controller 2]
The traffic signal controller 2 receives the signal control command information sent from the central device 1, and based on this signal control command information, the signal control plan of the next cycle, that is, the switching timing of each signal lamp color of the signal lamp, etc. Based on this signal control plan, lighting, extinguishing and blinking of each signal lamp of a signal lamp (not shown) installed at the intersection are controlled.
The traffic signal controller 2 creates a signal control plan so as to execute the cycle length, split, target offset, offset reference time, etc. included in the signal control command information, but the target offset cannot be executed only in the next cycle. Performs the above-described tracking and executes the target offset in a plurality of cycles.

As described above, the traffic signal controller 2 transmits the signal control execution information in the previous cycle to the central apparatus 1 at a predetermined time after the start of the cycle (for example, 3 seconds after the start of the cycle). This signal control execution information includes the execution offset in the previous cycle, the cycle start time, the number of execution seconds of each step, the sensitivity fluctuation value (shortened or extended) of the point sensitive control, and the like.
In addition, among the traffic signal controllers 2 of each intersection IS constituting the provided intersection, the traffic signal controller 2 (traffic signal controller 2A in FIG. 1) installed at the reference intersection is longer than its own cycle length. Based on the signal control plan for the current cycle and the signal control plan for the next cycle created every short predetermined time (for example, every second), the reference intersection signal information related to the display time of each signal lamp color in the current cycle and the next cycle is created To the information relay device 3.
The traffic signal controller installed at the reference intersection is also referred to as the reference traffic signal controller, and the traffic signal controller installed at the dependent intersection is also referred to as the dependent traffic signal controller. In FIG. 1, the traffic signal controller 2A is a reference traffic signal controller, and the traffic signal controllers 2B, 2C, and 2D are subordinate traffic signal controllers.

FIG. 5 is a diagram illustrating an example of a format of reference intersection signal information.
“Route” refers to a road that flows into the intersection IS, and is synonymous with an inflow route. The “number of routes” is the number of routes. For example, in FIG. 1, the number of routes at the intersection ISA is 4.
The “number of information providing lamp colors” refers to the number of signal lamp colors included in the reference intersection signal information. When the signal lamp colors for two cycles of the current cycle and the next cycle are included in the reference intersection signal information, for example, the number of information providing lamp colors is six of blue, yellow, red, blue, yellow, and red.
The “lamp color” indicates a signal lamp color, such as blue, yellow, and red.
“Shortest time” and “Longest time” respectively indicate the shortest time and the longest time when the signal lamp color time fluctuates. When the signal lamp color time is fixed, the same value is stored.

[Information relay device]
The information relay device 3 is a traffic signal controller 2 (see FIG. 1) at a reference intersection at a predetermined time (for example, every second) at a predetermined time (for example, when receiving the target intersection signal information from the central device 1). Then, green wave signal information is created based on the reference intersection signal information sent from the traffic signal controller 2A) and the provision target intersection signal information sent from the central device 1, and transmitted to the roadside communication device 4. .

FIG. 6 is a block diagram illustrating an example of the configuration of the information relay apparatus. The information relay device 3 includes a first interface unit 301, a second interface unit 302, a relay unit 303, a control unit 304, and a storage unit 305.
The first interface unit 301 is a communication interface for performing communication with the central device 1 and communication with the traffic signal controller 2, and the second interface unit 302 is with the roadside communication device 4. It is a communication interface for performing communication.

The control unit 304 is composed of one or a plurality of microcomputers, and is connected to the relay unit 303 and the storage unit 305 via an internal bus. The control unit 304 controls operations of these units.
The relay unit 303 relays various information transmitted and received by the interface units 301 and 302 in accordance with a control command from the control unit 304.

The storage unit 305 includes a hard disk, a semiconductor memory, and the like, and temporarily stores various types of information received by the interface units 301 and 302.
The storage unit 305 stores a control program for relay processing performed by the control unit 304 and a control program for green wave signal information creation processing performed by the control unit 304.

Hereinafter, green wave signal information creation processing performed by the control unit 304 will be described.
When all traffic signal controllers 2 of the intersection IS constituting the provision target intersection are synchronized in the next cycle, the provision target intersection in which appropriate values are set as the offset, cycle length, and blue time from the central device 1 Signal information is sent. The control unit 304 always obtains the reference intersection signal information at every predetermined time (for example, every second), thereby constantly grasping the cycle start time of the traffic signal controller 2 at the reference intersection and the elapsed time from the cycle start time. Therefore, the green wave signal information in the next cycle is created based on the elapsed time from the cycle start time of the traffic signal controller 2 at the reference intersection and the received provision target intersection signal information.
On the other hand, when all of the intersections to be provided are not synchronized, the central unit 1 sends the provided proposed intersection signal information in which a null value is set as an offset, a cycle length, and a blue time. Green wave signal information in the next cycle without setting is created.

Specifically, the method in which the control unit 304 grasps the cycle start point of the traffic signal controller 2 at the reference intersection and the elapsed time from the cycle start point based on the reference intersection signal information is as follows.
Referring to FIG. 5, for example, assuming that “Route (1)” is the main road direction, “Lamp Color (1)” of “Route (1)” in the reference intersection signal control information at a certain time Tx. "Light color" is "Red", "Minimum time [second]" and "Longest time [second]" is "1", "Light color" of "Light color (2)" is "Blue", "Minimum time" It is assumed that “time [second]” and “longest time [second]” are “65”.
In the reference intersection signal information at the time point (Tx + 1) one second later, “lamp color” of “lamp color (1)” of “route (1)” is “blue”, “shortest time [seconds]” and “ If the “longest time [second]” is “65”, the “lamp color” of “lamp color (2)” is “yellow”, the “shortest time [second]” and the “longest time [second]” are “4” The time point (Tx + 1) can be determined as the cycle start time point.
Therefore, if the elapsed time from the cycle start point (Tx + 1) is measured, the elapsed time from the cycle start point in the cycle can be grasped.

  The elapsed time from the start of the cycle in the next cycle is, for example, “lamp color” in order from “lamp color (1)” to “lamp color (Nt (1))” of “route (1)”. By searching, select the next “blue” lamp color, and add a negative sign to the “Shortest time [seconds]” or “Longest time [second]” addition value until that lamp color. Can be sought. For example, “Lamp Color” of “Land Color (1)” of “Route (1)” is “Yellow”, “Shortest Time [sec]” and “Longest Time [sec]” are “2”, “Lamp Color” The “lamp color” of “(2)” is “red”, the “shortest time [second]” and the “maximum time [second]” are “48”, and the “lamp color” of “lamp color (3)” is “blue”. If the “minimum time [seconds]” and “maximum time [seconds]” are “65”, the elapsed time from the cycle start time in the next cycle is −50 seconds (= −48 seconds−2 seconds). .

  FIG. 7 is a diagram illustrating an example of a format (data structure) of green wave signal information in the first embodiment. If the number of subordinate intersections included in the provision target intersection is N, the green wave signal information is a predetermined first cycle (the next cycle in the above example) for the traffic signal controller 2 of the reference intersection among the provision target intersections. Information on the cycle length, the green time, the elapsed time from the cycle start time, and the offset, cycle length, and blue time in the first cycle for each of the traffic signal controllers 2 at the dependent intersections 1 to N. It is assumed that the start point of the green light coincides with the start point of the cycle.

[Roadside communication device 4]
The roadside communication device 4 is a device that performs wide-area communication, and transmits green wave signal information and the like to an in-vehicle device 5 mounted on a vehicle 6 that travels in a communication area (not shown) along the main road RM.

[In-vehicle device 5]
When the in-vehicle device 5 receives the green wave signal information in the next cycle from the roadside communication device 4, in the next cycle of the traffic signal controller 2 (traffic signal controller 2A in FIG. 1) at the reference intersection (intersection ISA in FIG. 1). Based on the cycle length, the green time, and the elapsed time from the cycle start time, the time zone of the green signal in the next cycle of the reference intersection is predicted. For example, if the cycle length is 120 seconds, the blue time is 65 seconds, and the elapsed time from the cycle start time is −3 seconds, the cycle start time of the next cycle is 3 seconds later, and the blue time is from the cycle start time. Further, it can be determined that 65 seconds have elapsed. Accordingly, the time zone of the green light in the next cycle of the reference intersection can be predicted from 3 seconds to 68 seconds (= 3 seconds + 65 seconds).

The in-vehicle device 5 determines the time zone of the green signal in the next cycle of each dependent intersection based on the offset, cycle length, and green time in the next cycle of the traffic signal controller 2 of the dependent intersection included in the green wave signal information. Predict. For example, if the dependent intersection 1 (intersection ISB in FIG. 1) has an offset of 20 seconds, a cycle length of 120 seconds, and a green time of 77 seconds, the starting point of the green signal is offset from the starting point of the blue signal at the reference intersection. Since it is the time point, it is 23 seconds (= 3 seconds + 20 seconds) later, and the end point of the green light is predicted to be 100 seconds (= 23 seconds + 77 seconds) since the blue light time is added to the calculated start time. it can. That is, the time zone of the green light in the next cycle of the dependent intersection 1 can be predicted from 23 seconds to 100 seconds later.
The in-vehicle device 5 calculates a range of the optimum traveling speed that can pass through these intersections during the green light by using the predicted time zone of the green light at each of the provided intersections to be provided.

Hereinafter, the green wave signal information creation process of the information relay apparatus 3 will be described using a specific example.
First, the operation content of the traffic signal controllers 2A to 2D will be described.
FIG. 8 shows a cycle (pre-update cycle) at the time when a signal control parameter such as a cycle length and an offset is newly set (updated) for the traffic signal controller of each intersection constituting the intersection to be provided by the central device, and one of them. It is a figure which shows the execution result of the signal control of each of these traffic signal controllers, and the operation result of a central apparatus in the cycle before the update which is a previous cycle.
FIG. 8 shows the relationship between the cycle start time, executed cycle length, and execution offset of each traffic signal controller 2, the time when each traffic signal controller 2 transmits signal control execution information to the central device 1, and the central device 1 signals The time when the control parameter is updated, the time when the central device 1 transmits the signal control command information to each traffic signal controller 2, the time point on the time axis with reference to the start time of the cycle before the update of the traffic signal controller at the reference intersection It shows. “1G” in the figure indicates the cycle start time.
Referring to FIG. 8, in the cycle before the update, the cycle lengths executed by the traffic signal controllers 2A, 2B, 2C, and 2D are all 100 seconds, and the execution offsets are 0 seconds, 10 seconds, and 20 seconds, respectively. 30 seconds, and the cycle start points are 11:56:40, 11:56:50, 11:57:00, and 11:57:10, respectively.

FIG. 9 shows the cycle length and the target offset included in the signal control command information transmitted from the central unit to these traffic signal controllers in the cycle before the update of the traffic signal controllers at each intersection constituting the provided intersection. It is a figure which shows offset reference | standard time.
Referring to FIG. 9, the cycle length included in the signal control command information transmitted to each of traffic signal controllers 2A, 2B, 2C, and 2D in the cycle before update by central apparatus 1 is 100 seconds. The target offsets included in the control command information are 0 seconds, 10 seconds, 20 seconds, and 30 seconds, respectively, and the offset reference time included in the signal control command information is 11:55:00.

Referring to FIG. 8 again, the traffic signal controller 2A has a cycle length of 100 seconds and a target offset of 0 transmitted by the central device 1 immediately before the end of the cycle before the update of the traffic signal controller 2A (timing ta01). Second, the signal control command information including the offset reference time 11:55:00 is received.
The traffic signal controller 2B transmits a cycle length of 100 seconds, a target offset of 10 seconds, and an offset reference time of 11:55, immediately before the end of the cycle before the update of the traffic signal controller 2B (timing tb01). : Signal control command information including 00 is received.
The traffic signal controller 2C transmits a cycle length of 100 seconds, a target offset of 20 seconds, and an offset reference time of 11:55, immediately before the end of the cycle before the update of the traffic signal controller 2C (timing tc01). : Signal control command information including 00 is received.
The traffic signal controller 2D transmits a cycle length of 100 seconds, a target offset of 30 seconds, and an offset reference time of 11:55, transmitted by the central device 1 immediately before the end of the cycle before the update of the traffic signal controller 2D (timing td01). : Signal control command information including 00 is received.

When the pre-update cycle starts, the traffic signal controller 2A, after 3 seconds from the start of this cycle (timing ta03), the execution result of the signal control in the cycle before the update, that is, the execution offset 0 seconds, the cycle start time 11:56:40, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1.
When the pre-update cycle starts, the traffic signal controller 2B, after 3 seconds have elapsed from this cycle start time (timing tb03), the execution result of the signal control in the cycle before the update, that is, the execution offset of 10 seconds, the cycle start time 11:56:50, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1.
When the pre-update cycle starts, the traffic signal controller 2C, after 3 seconds have elapsed from the start of this cycle (timing tc03), the execution result of the signal control in the cycle before the update, that is, the execution offset 20 seconds, the cycle start time 11:57:00, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1.
When the pre-update cycle starts, the traffic signal controller 2D, after 3 seconds have elapsed from this cycle start time (timing td03), the signal control execution result in the cycle before the update, that is, the execution offset 30 seconds, the cycle start time 11:57:10, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1.

The traffic signal controllers 2A to 2D execute signal control in the pre-update cycle based on the signal control command information received immediately before the end point of the pre-update cycle.
Referring to FIG. 8, in the pre-update cycle, the cycle lengths executed by the traffic signal controllers 2A, 2B, 2C, and 2D are all 100 seconds, and the execution offsets are 0 seconds, 10 seconds, and 20 seconds, respectively. The cycle start time is 11:58:20, 11:58:30, 11:58:40, and 11:58:50, respectively.
In all of the traffic signal controllers 2A, 2B, 2C, and 2D, the target offset included in the signal control command information received immediately before the end of the cycle before the update and the execution offset in the cycle before the update are the same value. Therefore, tracking is completed and synchronization is in progress.

The central device 1 newly sets (updates) signal control parameters such as cycle length and offset of these traffic signal controllers at timing ta04 after the start of the cycle before updating the traffic signal controllers 2A, 2B, 2C, and 2D. To do.
FIG. 10 shows the cycle length, target offset, and tracking width included in the signal control command information transmitted to the traffic signal controllers by the central unit in the pre-update cycle of the traffic signal controllers at each intersection constituting the provided intersection. FIG.
Referring to FIG. 10, the cycle length included in the signal control command information transmitted to each of traffic signal controllers 2A, 2B, 2C, and 2D by central apparatus 1 in the pre-update cycle is 120 seconds. The target offset included in the command information is 0 second, 20 seconds, 40 seconds, and 60 seconds, respectively, and the offset reference time included in the signal control command information is 11:56:00, and the signal control command information The follow-up width included in each is −1/8 or +1/8.

Referring to FIG. 8 again, the traffic signal controller 2A transmits a cycle length of 120 seconds, an offset reference time of 11:56:00, a target offset immediately before the end of the pre-update cycle (timing ta05). Signal control command information including 0 seconds, tracking width −1/8, +1/8, etc. is received.
The traffic signal controller 2B transmits a cycle length of 120 seconds, a target offset of 20 seconds, an offset reference time of 11:56:00, a follow-up width of −1 // immediately before the end of the pre-update cycle (timing tb05). Signal control command information including 8 or +1/8 is received.
The traffic signal controller 2C transmits a cycle length of 120 seconds, a target offset of 40 seconds, an offset reference time of 11:56:00, a tracking width of −1 // immediately before the end of the pre-update cycle (timing tc05). Signal control command information including 8 or +1/8 is received.
The traffic signal controller 2D transmits a cycle length of 120 seconds, a target offset of 60 seconds, an offset reference time of 11:56:00, a tracking width of −1 // immediately before the end of the pre-update cycle (timing td05). Signal control command information including 8 or +1/8 is received.
In this case, the traffic signal controllers 2A to 2D can change the cycle length between 105 seconds (= 120 seconds−120 seconds × 1/8) to 135 seconds (= 120 seconds + 120 seconds × 1/8). Become.

  In this embodiment, for the sake of simplicity, the central apparatus 1 always sets the execution offset to 0 seconds if the traffic signal controller 2A operates at the same cycle length as the cycle length instructed by the signal control command. (That is, even if the traffic signal controller 2A does not extend or shorten the cycle length by offset tracking, as a result, the execution offset is always 0 second), the signal control of the traffic signal controller 2A It is assumed that parameters are set. In this case, in the traffic signal controller 2A, the central device 1 transmits the cycle start time 12: 00: 00: 00 of the next cycle (post-update cycle) immediately before the end of the pre-update cycle (timing ta05). This coincides with the time when the offset reference time 11:56:00 included in the signal control command information is added n times the cycle length 120 seconds included in the signal control command information (in this case, n = 2). .

FIG. 11 shows the execution results of signal control of each of the traffic signal controllers in the next cycle of the traffic signal controller at each intersection constituting the provided intersection (the cycle after the update = 1 cycle), It is a figure which shows the operation result of an apparatus and an information relay apparatus.
FIG. 11 shows the relationship between the cycle start time, executed cycle length, and execution offset of each traffic signal controller 2, the time when each traffic signal controller 2 transmits signal control execution information to the central device 1, and the central device 1 When the signal control command information is transmitted to the traffic signal controller 2, when the central device 1 transmits the target intersection signal information to the information relay device 3, the information relay device 3 transmits the green wave signal information to the roadside communication device 4. The point in time is shown on the time axis based on the start point (timing ta10) of the first cycle of the traffic signal controller at the reference intersection.

When the post-update cycle (this cycle is assumed to be the first cycle in the traffic signal controller 2A) starts, the traffic signal controller 2A starts the previous cycle (that is, the timing ta11) after the elapse of 3 seconds (timing ta11). The execution result in the cycle before update) is included in the signal control execution information and transmitted to the central apparatus 1. That is, the traffic signal controller 2A transmits to the central device 1 signal control execution information including an execution offset of 0 seconds, a cycle start time of 11:58:20, and the number of execution seconds of each floor. The central device 1 can calculate the cycle length of 100 seconds in the previous cycle (pre-update cycle) of the first cycle by adding the execution seconds of each layer.
As described above, in the traffic signal controller 2A, the cycle start time 12:00 of the first cycle is the signal at the offset reference time 11:56:00 included in the signal control command information received in the pre-update cycle. The execution offset of the first cycle is 0 seconds because it coincides with the time 12:00: 00 which is twice the cycle length of 120 seconds included in the control command information.

Since the traffic signal controller 2A has an execution offset of 0 seconds in the first cycle that matches the target offset of 0 seconds included in the signal control command information, the cycle length is set to the cycle length included in the signal control command information. The same 120 seconds are set, and execution of the cycle length of 120 seconds included in the signal control command information is completed. As a result, the execution offset of the next cycle (second cycle) is also 0 seconds.
As described above, since the execution offset 0 second in the first cycle coincides with the target offset 0 seconds, the traffic signal controller 2A completes the tracking in the first cycle and is synchronized.
The traffic signal controller 2A transmits a cycle length of 120 seconds, a target offset of 0 seconds, an offset reference time of 11:56:00, a follow-up width of −1 // immediately before the end of the first cycle (timing ta14). Signal control command information including 8 or +1/8 is received.

When the post-update cycle (this cycle is assumed to be the first cycle in the traffic signal controller 2B) starts, the traffic signal controller 2B starts the previous cycle (ie Signal control execution information including an execution offset of 10 seconds in the cycle before update), a cycle start time of 11:58:30, the number of execution seconds of each floor, and the like is transmitted to the central apparatus 1. The central device 1 can calculate the cycle length of 100 seconds in the previous cycle (pre-update cycle) of the first cycle by adding the execution seconds of each layer.
The traffic signal controller 2 </ b> B sets the signal control command information at the offset reference time 11:56:00 included in the signal control command information received in the cycle before update at the cycle start time 12:00:10 of the first cycle. The execution offset of the first cycle is 10 seconds since it is 10 seconds after the time 12: 00: 00: 00 when twice the included cycle length of 120 seconds is added.

The traffic signal controller 2B has a cycle length of 120 seconds included in the signal control command information because the execution offset 10 seconds of the first cycle is 10 seconds less than the target offset 20 seconds included in the signal control command information. Let 130 seconds be 10 seconds longer than the second. As a result, the execution offset of the next cycle (second cycle) is 20 seconds, which coincides with the target offset of 20 seconds. Therefore, the traffic signal controller 2B completes tracking in the first cycle, and the next cycle (2 cycles). Eye).
The traffic signal controller 2B transmits a cycle length of 120 seconds, a target offset of 20 seconds, an offset reference time of 11:56:00, a follow-up width of −1 // immediately before the end of the first cycle (timing tb14). Signal control command information including 8 or +1/8 is received.

When the post-update cycle (this cycle is assumed to be the first cycle in the traffic signal controller 2C) starts, the traffic signal controller 2C starts the previous cycle (that is, after the elapse of 3 seconds (timing tb11) from this cycle start time) Signal control execution information including execution offset 20 seconds in cycle before update), cycle start time 11:58:40, execution seconds of each floor, and the like is transmitted to the central apparatus 1. The central device 1 can calculate the cycle length of 100 seconds in the previous cycle (pre-update cycle) of the first cycle by adding the execution seconds of each layer.
In the traffic signal controller 2C, the cycle start time 12:00:20 of the first cycle is set to the signal control command information at the offset reference time 11:56:00 included in the signal control command information received in the pre-update cycle. The execution offset of the first cycle is 20 seconds since it is 20 seconds after the time 12:00:00 when the included cycle length of 120 seconds is added.

The traffic signal controller 2C has a cycle length of 120 seconds included in the signal control command information because the execution offset 20 seconds of the first cycle is 20 seconds less than the target offset 40 seconds included in the signal control command information. The maximum follow-up width is 15 seconds, which is 135 seconds. As a result, the execution offset of the next cycle (second cycle) is 35 seconds, but is 5 seconds smaller than the target offset of 40 seconds, so the traffic signal controller 2C cannot complete the tracking in the first cycle. The next cycle (second cycle) is being followed.
The traffic signal controller 2C transmits a cycle length of 120 seconds, a target offset of 40 seconds, an offset reference time of 11:56:00, a tracking width of −1 // Signal control command information including 8 or +1/8 is received.

When the post-update cycle (this cycle is assumed to be the first cycle in the traffic signal controller 2D) starts, the traffic signal controller 2D starts the previous cycle (i.e., at the timing td11) after the elapse of 3 seconds (timing td11). Signal control execution information including an execution offset 30 seconds, a cycle start time 11:58:50, the execution seconds of each floor, and the like in the cycle before update) is transmitted to the central apparatus 1. The central device 1 can calculate the cycle length of 100 seconds in the previous cycle (pre-update cycle) of the first cycle by adding the execution seconds of each layer.
The traffic signal controller 2 </ b> D sets the first cycle start time 12:00:30 to the signal control command information at the offset reference time 11:56:00 included in the signal control command information received in the pre-update cycle. The execution offset of the first cycle is 30 seconds because it is 30 seconds after the time 12: 00: 00: 00 when the included cycle length of 120 seconds is added.

The traffic signal controller 2D has a cycle length of 120 seconds included in the signal control command information because the execution offset of 30 seconds in the first cycle is 30 seconds shorter than the target offset of 60 seconds included in the signal control command information. The maximum follow-up width is 15 seconds, which is 135 seconds. As a result, the execution offset of the next cycle (second cycle) is 45 seconds, but is 15 seconds smaller than the target offset of 60 seconds, so the traffic signal controller 2D cannot complete tracking in the first cycle. The next cycle (second cycle) is being followed.
The traffic signal controller 2D transmits a cycle length of 120 seconds, a target offset of 60 seconds, an offset reference time of 11:56:00, a follow-up width of −1 // immediately before the end of the first cycle (timing td14). Signal control command information including 8 or +1/8 is received.

FIG. 12 shows the signal control execution results, the central device, and the information relay of each traffic signal controller in the next cycle (second cycle) of the traffic signal controller at each intersection constituting the provided intersection. It is a figure which shows the operation result of an apparatus.
FIG. 12 shows the relationship between the cycle start time, executed cycle length, and execution offset of each traffic signal controller 2, the time when each traffic signal controller 2 transmits signal control execution information to the central device 1, and the central device 1 When the signal control command information is transmitted to the traffic signal controller 2, when the central device 1 transmits the target intersection signal information to the information relay device 3, the information relay device 3 transmits the green wave signal information to the roadside communication device 4. The point in time is shown on the time axis based on the start point (timing ta20) of the second cycle of the traffic signal controller at the reference intersection.

When the second cycle of the traffic signal controller 2A starts, the execution offset is 0 second in the previous cycle (that is, the first cycle) and the cycle start time is 12 seconds after 3 seconds have elapsed from the start of the cycle (timing ta21). : 00: 00, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1. The central device 1 can calculate the cycle length of 120 seconds in the first cycle by adding the execution seconds of the respective steps. In this cycle, the execution offset is 0 seconds as described above.
Since the traffic signal controller 2A matches the target offset 0 seconds included in the signal control command information received in the first cycle, the execution offset 0 seconds in the second cycle matches the signal control command information. Maintain included cycle length of 120 seconds. As a result, the execution offset of the next cycle (third cycle) is also 0 seconds.
As described above, since the execution offset 0 second in the second cycle coincides with the target offset 0 seconds, the traffic signal controller 2A is also synchronized in the second cycle.
The traffic signal controller 2A transmits a cycle length of 120 seconds, a target offset of 0 seconds, an offset reference time of 11:56:00, a tracking width of −1 // immediately before the end of the second cycle (timing ta24). Signal control command information including 8 or +1/8 is received.

When the second cycle of the traffic signal controller 2B is started, the execution offset is 10 seconds in the previous cycle (that is, the first cycle) and the cycle start time 12 after 3 seconds have elapsed from this cycle start time (timing tb21). 0:00:10, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1. The central device 1 can calculate the cycle length of 130 seconds in the first cycle by adding the execution seconds of each step. In this cycle, the execution offset is 20 seconds as described above.
Since the traffic signal controller 2B matches the target offset 20 seconds included in the signal control command information received in the first cycle with the execution offset 20 seconds in the second cycle, the cycle length is set to the signal control command information. The included cycle length is 120 seconds. As a result, the execution offset of the next cycle (third cycle) is also 20 seconds.
As described above, since the execution offset 20 seconds in the second cycle coincides with the target offset 20 seconds, the traffic signal controller 2B is synchronized in the second cycle.
The traffic signal controller 2B transmits a cycle length of 120 seconds, a target offset of 20 seconds, an offset reference time of 11:56:00, a follow-up width of −1 // immediately before the end of the second cycle (timing tb24). Signal control command information including 8 or +1/8 is received.

When the second cycle of the traffic signal controller 2C starts, the execution offset 20 seconds in the previous cycle (that is, the first cycle) and the cycle start time 12 after 3 seconds have elapsed from this cycle start time (timing tc21). 0:00:20, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1. The central device 1 can calculate the cycle length of 135 seconds in the first cycle by adding the execution seconds of the respective steps. In this cycle, the execution offset is 35 seconds as described above.
In the traffic signal controller 2C, the execution offset 35 seconds in the second cycle is 5 seconds less than the target offset 40 seconds included in the signal control command information received in the first cycle, so the cycle length is set to the signal control command information. The included cycle length is 120 seconds, which is 5 seconds longer than 120 seconds. As a result, the execution offset of the next cycle (third cycle) is 40 seconds, which coincides with the target offset of 40 seconds. Therefore, the traffic signal controller 2C completes the tracking in the second cycle, and the next cycle (three cycles). Eye).
The traffic signal controller 2C transmits a cycle length of 120 seconds, a target offset of 40 seconds, an offset reference time of 11:56:00, a follow-up width of −1 // immediately before the end of the second cycle (timing tc24). Signal control command information including 8 or +1/8 is received.

When the second cycle of the traffic signal controller 2D starts, the execution offset of 30 seconds in the previous cycle (that is, the first cycle) is 30 seconds later and the cycle start time 12 after 3 seconds have elapsed from the start of this cycle (timing td21). : 0: 30, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1. The central device 1 can calculate the cycle length of 135 seconds in the first cycle by adding the execution seconds of the respective steps. The central device 1 can calculate the cycle length of 135 seconds by adding the execution seconds of each floor. In this cycle, the execution offset is 45 seconds as described above.
In the traffic signal controller 2D, the execution offset 45 seconds in the second cycle is 15 seconds less than the target offset 60 seconds included in the signal control command information received in the first cycle, so the cycle length is set to the signal control command information. The included cycle length is 120 seconds and the maximum follow-up width is 15 seconds, which is 135 seconds. As a result, the execution offset of the next cycle (third cycle) is 60 seconds, which is equal to the target offset of 60 seconds. Therefore, the traffic signal controller 2D completes tracking in the second cycle, and the next cycle (third cycle). Is in sync.
The traffic signal controller 2D transmits a cycle length of 120 seconds, a target offset of 60 seconds, an offset reference time of 11:56:00, a tracking width of −1 // immediately before the end of the second cycle (timing td24). Signal control command information including 8 or +1/8 is received.

FIG. 13 shows the signal control execution results, the central device, and the information relay of each of the traffic signal controllers in the second cycle (third cycle) of the traffic signal controller at each intersection constituting the provided intersection. It is a figure which shows the operation result of an apparatus.
FIG. 13 shows the relationship between the cycle start time / executed cycle length / execution offset of each traffic signal controller 2, the time when each traffic signal controller 2 sends signal control execution information to the central device 1, and the central device 1 When the signal control command information is transmitted to the traffic signal controller 2, when the central device 1 transmits the target intersection signal information to the information relay device 3, the information relay device 3 transmits the green wave signal information to the roadside communication device 4. The point in time is shown on the time axis based on the start point (timing ta30) of the third cycle of the traffic signal controller at the reference intersection.

When the third cycle of the traffic signal controller 2A is started, the execution offset is 0 second in the previous cycle (that is, the second cycle) and the cycle start time is 12 seconds after 3 seconds have elapsed from this cycle start time (timing ta31). : 02:00, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1. The central device 1 can calculate the cycle length of 120 seconds in the second cycle by adding the execution seconds of each step. In this cycle, the execution offset is 0 seconds as described above.
Since the traffic signal controller 2A matches the execution offset 0 second in the third cycle with the target offset 0 seconds included in the signal control command information received in the second cycle, the cycle length is set to the signal control command information. Maintain included cycle length of 120 seconds. As a result, the execution offset of the next cycle (fourth cycle) is also 0 seconds.
As described above, since the execution offset 0 second in the third cycle coincides with the target offset 0 second, the traffic signal controller 2A is also synchronized in the third cycle.
The traffic signal controller 2A transmits a cycle length of 120 seconds, a target offset of 0 seconds, an offset reference time of 11:56:00, a tracking width of −1 // immediately before the end of the third cycle (timing ta34). Signal control command information including 8 or +1/8 is received.

When the third cycle of the traffic signal controller 2B starts, the execution offset 20 seconds in the previous cycle (that is, the second cycle), the cycle start time 12 after 3 seconds from the start of the cycle (timing tb31). : 02: 20, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1. The central device 1 can calculate the cycle length of 120 seconds in the second cycle by adding the execution seconds of each step. In this cycle, the execution offset is 20 seconds as described above.
Since the traffic signal controller 2B matches the target offset 20 seconds included in the signal control command information received in the second cycle with the execution offset 20 seconds in the third cycle, the cycle length is set to the signal control command information. Maintain included cycle length of 120 seconds. As a result, the execution offset of the next cycle (fourth cycle) is also 20 seconds.
As described above, since the execution offset 20 seconds in the third cycle coincides with the target offset 20 seconds, the traffic signal controller 2B is also synchronized in the third cycle.
The traffic signal controller 2B transmits a cycle length of 120 seconds, a target offset of 20 seconds, an offset reference time of 11:56:00, a tracking width of −1 // immediately before the end of the third cycle (timing tb34). Signal control command information including 8 or +1/8 is received.

When the third cycle of the traffic signal controller 2C starts, the execution offset 35 seconds in the previous cycle (that is, the second cycle), the cycle start time 12 after 3 seconds have elapsed from this cycle start time (timing tc31). : 02: 35, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1. The central device 1 can calculate the cycle length of 125 seconds in the second cycle by adding the execution seconds of the respective steps. In this cycle, the execution offset is 40 seconds as described above.
Since the traffic signal controller 2C matches the target offset 40 seconds included in the signal control command information received in the second cycle with the execution offset 40 seconds in the third cycle, the cycle length is set to the signal control command information. The included cycle length is 120 seconds. As a result, the execution offset of the next cycle (fourth cycle) is also 40 seconds.
As described above, since the execution offset 40 seconds in the third cycle matches the target offset 40 seconds, the traffic signal controller 2C is also synchronized in the third cycle.
The traffic signal controller 2C transmits a cycle length of 120 seconds, a target offset of 40 seconds, an offset reference time of 11:56:00, a follow-up width of −1 // immediately before the end of the third cycle (timing tc34). Signal control command information including 8 or +1/8 is received.

When the third cycle of the traffic signal controller 2D starts, the execution offset 45 seconds and the cycle start time 12 in the previous cycle (that is, the second cycle) are three seconds after the cycle start time (timing td31). : 02: 45, signal control execution information including the execution seconds of each floor is transmitted to the central apparatus 1. The central device 1 can calculate the cycle length of 135 seconds in the second cycle by adding the execution seconds of each floor. In this cycle, the execution offset is 60 seconds as described above.
The traffic signal controller 2D determines that the execution offset 60 seconds in the third cycle matches the target offset 60 seconds included in the signal control command information received in the second cycle. The included cycle length is 120 seconds. As a result, the execution offset of the next cycle (fourth cycle) is also 60 seconds.
As described above, since the execution offset 60 seconds in the third cycle coincides with the target offset 60 seconds, the traffic signal controller 2D is also synchronized in the third cycle.
The traffic signal controller 2D transmits a cycle length of 120 seconds, a target offset of 60 seconds, an offset reference time of 11:56:00, a follow-up width of −1 // immediately before the end of the third cycle (timing td34). Signal control command information including 8 or +1/8 is received.

Next, the operation content of the central device 1 in the first to third cycles of the traffic signal controllers 2A to 2D described above will be described.
The central device 1 first transmits to the previous cycle (pre-update cycle) of the first cycle of the traffic signal controllers 2A, 2B, 2C, and 2D 10 seconds before the end of the first cycle of the traffic signal controller 2A. The target offset included in the signal control command information (that is, the target offset in the first cycle) is compared with the execution offset in the first cycle of these traffic signal controllers 2A, 2B, 2C, and 2D.
The execution offset of the first cycle is calculated as follows. First, the central device 1 determines the cycle start time included in the signal control execution information received in the first cycle from each of the traffic signal controllers 2A, 2B, 2C, and 2D, the execution seconds of each step (that is, in the cycle before update). The cycle start time in the first cycle is calculated based on the cycle start time and the number of execution seconds of each floor). Next, the central device 1 based on the calculated cycle start time in the first cycle and the cycle length and offset reference time (that is, the cycle length and offset reference time in the first cycle) included in the signal control command information. The execution offset in the first cycle is calculated.

  If the value of the target offset in the first cycle and the execution offset in the first cycle are the same, the central device 1 determines that synchronization is in progress in the first cycle. Based on the included cycle length, target offset, and tracking width (that is, cycle length, target offset, tracking width in the first cycle) and the calculated execution offset in the first cycle, tracking is completed in how many cycles and synchronized. Predict what will be inside. And the central apparatus 1 memorize | stores the cycle used as synchronization about each of traffic signal controller 2A, 2B, 2C, 2D.

First, for the traffic signal controller 2A, the central device 1 sets the signal control parameter so that the execution offset is always 0 seconds as described above, so the execution offset of the first cycle is set to 0 seconds. calculate.
The central device 1 compares the execution offset 0 second in the first cycle with the target offset 0 seconds included in the signal control command information, and since both values are the same, synchronization is being performed in the first cycle. It is determined that And the central apparatus 1 memorize | stores being synchronized in the 1st cycle about 2 A of traffic signal controllers.
When the central apparatus 1 does not know that the execution offset is always 0 seconds for the traffic signal controller 2A, the central apparatus 1 calculates the execution offset of the first cycle as follows. The central device 1 determines the cycle start time 11:58:20 included in the signal control execution information received from the traffic signal controller 2A in the first cycle and the execution seconds of each step included in the signal control execution information. The cycle start time of the first cycle is calculated as 12:00:00 (= 11: 58: 20 + 100 seconds) from the cycle length 100 seconds of the pre-update cycle obtained by addition. The cycle start time 12:00 of the first cycle is the offset control time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2A in the pre-update cycle. The central device 1 calculates the execution offset of the first cycle of the traffic signal controller 2 </ b> A as 0 seconds because it coincides with the time 12: 00: 00: 00 when the included cycle length of 120 seconds is added.

Next, for the traffic signal controller 2B, the central device 1 determines that the cycle start time 11:58:30 included in the signal control execution information received from the traffic signal controller 2B in the first cycle and the signal control execution information. The cycle start time of the first cycle is calculated as 12:00:10 (= 11: 58: 30 + 100 seconds) from the cycle length 100 seconds of the pre-update cycle obtained by adding the execution seconds of each layer included in To do. The cycle start time 12:00:10 of the first cycle is set to the signal control command information at the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2B in the pre-update cycle. The central device 1 calculates the execution offset of the first cycle of the traffic signal controller 2B as 10 seconds since it is 10 seconds after the time 12: 00: 00: 00 when the included cycle length of 120 seconds is added.
The central unit compares the execution offset 10 seconds of the first cycle with the target offset 20 seconds included in the signal control command information, and the two values are different. Next, from the target offset 20 seconds, The value 10 seconds obtained by subtracting the execution offset 10 seconds is the follow-up width −1/8 or +1/8 included in the signal control command information, that is, −15 seconds (= 120 seconds × −1 / 8) to +15 seconds. When tracking is performed at (= 120 seconds × + 1/8), since 10 seconds <+15 seconds × 1 cycle, it is predicted that tracking is completed in the first cycle. And the central apparatus 1 memorize | stores being synchronized in the 2nd cycle about the traffic signal controller 2B.

Next, with respect to the traffic signal controller 2C, the central device 1 includes the cycle start time 11:58:40 included in the signal control execution information received from the traffic signal controller 2C in the first cycle, and the signal control execution information. The cycle start time of the first cycle is calculated as 12:00:20 (= 11: 58: 40 + 100 seconds) from the cycle length of the cycle before update obtained by adding the execution seconds of each layer included in To do. The cycle start time 12:00:20 of the first cycle is set to the signal control command information at the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2C in the pre-update cycle. Since it is 20 seconds after 12: 00: 00: 00 when the included cycle length of 120 seconds is added, the central device 1 calculates the execution offset of the first cycle of the traffic signal controller 2C as 20 seconds.
The central unit compares the execution offset 20 seconds in the first cycle with the target offset 40 seconds included in the signal control command information, and the two values are different. Next, from the target offset 40 seconds, A value of 20 seconds obtained by subtracting the execution offset of 20 seconds is 20 seconds <+15 when tracking is performed with a tracking width of 1/8 or +1/8, that is, -15 seconds to +15 seconds included in the signal control command information. Since it is seconds × 2 cycles, it is predicted that tracking will be completed in the second cycle. And the central apparatus 1 memorize | stores being synchronized in the 3rd cycle about 2C of traffic signal controllers.

Next, with respect to the traffic signal controller 2D, the central device 1 includes the cycle start time 11:58:50 included in the signal control execution information received from the traffic signal controller 2D in the first cycle, and the signal control execution information. The cycle start time of the first cycle is calculated as 12:00:30 (= 11: 58: 50 + 100 seconds) from the cycle length 100 seconds of the pre-update cycle obtained by adding the execution seconds of each layer included in To do. The cycle start time 12:00:30 of the first cycle is set to the signal control command information at the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2D in the pre-update cycle. Since it is 30 seconds after 12: 00: 00: 00 when the included cycle length of 120 seconds is added, the central device 1 calculates the execution offset of the first cycle of the traffic signal controller 2D as 30 seconds.
The central unit compares the execution offset of 30 seconds in the first cycle with the target offset of 60 seconds included in the signal control command information, and the two values are different. Next, from the target offset of 60 seconds, The value of 30 seconds obtained by subtracting the execution offset of 30 seconds is 30 seconds ≦ + 15 when tracking is performed with a tracking width of 1/8 or +1/8, that is, −15 to +15 seconds included in the signal control command information. Since it is seconds × 2 cycles, it is predicted that the tracking will be completed in the second cycle. And the central apparatus 1 memorize | stores being synchronized in the 3rd cycle about traffic signal controller 2D.

Referring to FIG. 11, central device 1 stores the traffic signal controller 2A stored in itself at the first cycle 5 seconds before the end of the first cycle of traffic signal controller 2A (timing ta12). The traffic signal controller 2B is synchronized in the second cycle, and the traffic signal controllers 2C and 2D are synchronized in the third cycle. It is determined that all of 2C and 2D are not synchronized in the next cycle (second cycle).
Then, the central device 1 uses the information relay device 3 to provide the intersection signal information to be provided in which null values are set as the offset, cycle length, and blue time in the main road direction in the next cycle of each of the traffic signal controllers 2A, 2B, 2C, and 2D. Send to.

Referring to FIG. 12, central device 1 stores traffic signal controller 2A in its first cycle 5 seconds before the end of the second cycle of traffic signal controller 2A (timing ta22). The traffic signal controller 2B is synchronized in the second cycle, and the traffic signal controllers 2C and 2D are synchronized in the third cycle. It is determined that all of 2C and 2D are in synchronization in the next cycle (third cycle).
The central device 1 then splits and cycle lengths included in the signal control command information scheduled to be transmitted in the second cycle (that is, the split and cycle in the third cycle) for each of the traffic signal controllers 2A, 2B, 2C and 2D The blue time in the direction of the main road RM is calculated based on (long).

For example, for each of the traffic signal controllers 2A, 2B, 2C, and 2D, splits in the main road RM direction and the secondary road direction are 72 seconds: 48 seconds, 84 seconds: 36 seconds, 84 seconds: 36 seconds, 84 seconds: 36 seconds. If the yellow time and red time in the main road RM direction and the secondary road direction are 4 seconds and 3 seconds, the blue time in the main road RM direction of each of the traffic signal controllers 2A, 2B, 2C, 2D is 65 Second (= 72 seconds-4 seconds-3 seconds), 77 seconds (= 84 seconds-4 seconds-3 seconds), 77 seconds (= 84 seconds-4 seconds-3 seconds), 77 seconds (= 84 seconds-4 seconds) -3 seconds).
The central device 1 then, for the traffic signal controller 2A, has a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2A in the second cycle, and the calculated main road RM direction. The information of the blue time of 65 seconds is included in the provided intersection signal information.
In addition, the central device 1 calculates the above for the traffic signal controller 2B, the offset 20 seconds and the cycle length 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2B in the second cycle. Information of the blue time of 77 seconds in the direction of the main road RM is included in the provision target intersection signal information.
In addition, the central device 1 calculates the above for the traffic signal controller 2C, offset 40 seconds and cycle length 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2C in the second cycle. Information of the blue time of 77 seconds in the direction of the main road RM is included in the provision target intersection signal information.
Further, the central device 1 calculates the above for the traffic signal controller 2D, the offset 60 seconds and the cycle length 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2D in the second cycle. Information of the blue time of 77 seconds in the direction of the main road RM is included in the provision target intersection signal information.
Then, the central device 1 transmits the provision target intersection signal information created in this way to the information relay device 3.

Referring to FIG. 13, the central device 1 has the traffic signal controller 2A stored in itself at the first cycle 5 seconds before the end of the third cycle of the traffic signal controller 2A (timing ta32). Based on the information that the traffic signal controller 2B is synchronized in the second cycle and the traffic signal controllers 2C and 2D are synchronized in the third cycle, these traffic signal controllers 2A, 2B, It is determined that all of 2C and 2D are synchronized in the next cycle (fourth cycle).
Then, the central device 1 calculates the traffic signal controller 2A in the same manner as the second cycle with a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2A in the third cycle. The information of the green time of 65 seconds in the direction of the main road RM is included in the provision target intersection signal information.
In addition, the central device 1 for the traffic signal controller 2B has an offset of 20 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2B in the third cycle. Similarly, information about the blue time of 77 seconds in the direction of the main road RM is included in the provision target intersection signal information.
In addition, the central device 1 for the traffic signal controller 2C has an offset of 40 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2C in the third cycle. Similarly, information about the blue time of 77 seconds in the direction of the main road RM is included in the provision target intersection signal information.
Further, the central device 1 has an offset of 60 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2D in the third cycle for the traffic signal controller 2D. Similarly, information about the blue time of 77 seconds in the direction of the main road RM is included in the provision target intersection signal information.
Then, the central device 1 transmits the provision target intersection signal information created in this way to the information relay device 3.

Next, the operation content of the information relay apparatus 3 in the first to third cycles of the traffic signal controllers 2A to 2D described above will be described.
Referring to FIG. 11, the information relay device 3 receives the first cycle provision target intersection signal information sent from the central device 1 (for example, 3 from the end of the first cycle of the traffic signal controller 2A). Since the provision target intersection signal information has a null value as the offset, cycle length, and blue time in the main road RM direction before the second (timing ta13), the green in the second cycle in which no value is set. Wave signal information is created and transmitted to the roadside communication device 4.

  Referring to FIG. 12, the information relay device 3 receives the second-cycle provision target intersection signal information sent from the central device 1 (for example, 3 from the end of the second cycle of the traffic signal controller 2A). Before the second (timing ta23), since the provision target intersection signal information is set with appropriate values as offset, cycle length, and blue time in the main road RM direction, it is included in the provision target intersection signal information. Green wave signal information is created using the information to be generated. The elapsed time from the cycle start time of the second cycle of the traffic signal controller 2A grasped from the reference intersection signal information by the information relay device 3 is 117 seconds (= cycle length 120 seconds-3 seconds), and the third cycle The elapsed time from the start of the cycle is -3 seconds. Therefore, the green wave signal information in the third cycle is created by including the elapsed time from the cycle start time of the third cycle in the information included in the received provided intersection signal information, and transmitted to the roadside communication device 4.

Referring to FIG. 13, the information relay device 3 receives the third-cycle provision target intersection signal information sent from the central device 1 (for example, 3 from the end of the third cycle of the traffic signal controller 2A). Since the provision target intersection signal information is set with appropriate values for the offset, cycle length, and blue time in the direction of the main road RM before the second (timing ta33), it is included in this provision target intersection signal information. Green wave signal information is created using the information to be generated. The elapsed time from the cycle start time of the third cycle of the traffic signal controller 2A grasped from the reference intersection signal information by the information relay device 3 is 117 seconds (= cycle length 120 seconds-3 seconds), and the fourth cycle The elapsed time from the start of the cycle is -3 seconds. Therefore, green wave signal information in the fourth cycle is created by including the elapsed time from the cycle start time of the fourth cycle in the information included in the received target intersection signal information, and transmitted to the roadside communication device 4.
FIG. 14 shows the contents of the green wave signal information created in the second to fourth cycles thus created.

[Effect of Embodiment 1]
According to the traffic system of the first embodiment, signal control such as offset (target offset), cycle length, and green time in the main road direction is performed for the traffic signal controller 2 of each intersection IS that constitutes the intersection to be provided by the central device 1. A parameter is created and the target intersection signal information including these signal control parameters is transmitted to the information relay device 3. Based on the reference intersection signal information including the display time of each signal lamp color sent from the traffic signal controller 2 at the reference intersection included in the provided intersection signal information, the information relay device 3 The elapsed time from the cycle start time in the predetermined first cycle of the traffic signal controller 2 is calculated. Then, the information relay device 3 creates the green wave signal information in the first cycle based on the elapsed time from the cycle start time and the provided target intersection signal information.
The central device 1 collectively creates macro information such as the cycle length and green time for these traffic signal controllers 2, and the information relay device 3 keeps temporal synchronization between these pieces of information while the information relay device 3 By calculating micro information such as the elapsed time from the cycle start point in the first cycle of the traffic signal controller 2 at the reference intersection, consistency with the actual time axis can be maintained.
For this reason, the green wave signal information can be transmitted to the vehicle while maintaining accuracy.

Furthermore, according to the traffic system of the first embodiment, in the first cycle, it is determined whether or not all of these traffic signal controllers 2 are synchronized, and only when it is determined that all of them are synchronized. The green wave signal information in the first cycle of these traffic signal controllers 2 is created. For this reason, the deviation between the signal control parameters such as the offset (target offset) created by the central device 1 and the execution results of the signal control such as the offset (execution offset) actually executed by these traffic signal controllers 2 is No effect on green wave signal information.
Therefore, the traffic system of Embodiment 1 can provide the signal information of the intersections to be provided to the vehicle 6 (the in-vehicle device 5) collectively while maintaining accuracy, and the vehicle 6 (the in-vehicle device 5) that has received the information. Can appropriately calculate the range of the traveling speed that can pass through the provided intersection during the green light.

  In the first embodiment described above, the central device 1 uses the traffic control execution information sent from the traffic signal controller 2 immediately after the start of the cycle, so that the traffic at each intersection IS constituting the provided intersection is provided. Although it was the structure which determines whether the signal controller 2 is synchronizing in the said 1st cycle, it is not restricted to this, The signal operation state information sent from the traffic signal controller 2 during a cycle is included. Based on this, it may be configured to determine whether or not synchronization is being performed in the first cycle cycle. In the signal operation state information, a flag “synchronized” is set. If this flag is ON, it indicates that synchronization is being performed, and if it is OFF, it indicates that synchronization is not being performed. Check the “synchronizing” flag in the received signal operation status information. If it is ON, it is determined that synchronization is being performed in the next cycle. If it is OFF, it is determined that synchronization is not being performed in the next cycle. Just do it.

  In the first embodiment described above, the central apparatus 1 provides the intersection to be provided based on the signal control command information transmitted to the traffic signal controller 2 and the signal control execution information transmitted from the traffic signal controller 2. However, the present invention is not limited to this, and the information relay device 3 is connected to the central device 1 from the central device 1. The configuration may be such that necessary information is acquired and it is determined whether or not synchronization is in progress.

In Embodiment 1 described above, only when it is determined that all of the traffic signal controllers 2 at each intersection IS constituting the provided intersection are synchronized in the first cycle, these traffic signal controllers. Although it was the structure which produces the green wave signal information in the said 1st cycle of 2, it is not restricted to this.
The traffic signal controller 2 executes in the cycle (post-update cycle) of the cycle (pre-update cycle) in which the central device 1 updates the cycle length and offset of the traffic signal controller 2 of each intersection IS constituting the target intersection. The difference between the cycle length and the cycle length updated by the central device 1 is small, and the offset (execution offset) executed by the traffic signal controller 2 may be little different from the offset immediately before the update (target offset).
By utilizing this fact, the central device 1 makes these traffic in the post-update cycle regardless of whether or not all the traffic signal controllers 2 of each intersection IS constituting the provided intersection are synchronized. A configuration may be adopted in which provision target intersection signal information including the offset (target offset) updated for each of the signal controllers 2, the cycle length, and the calculated blue time in the main road direction is transmitted to the information relay device 3.

In the first embodiment, the central device 1 is included in the signal control command information transmitted in the pre-update cycle in the cycle (post-update cycle) following the cycle in which the cycle length and offset are updated (pre-update cycle). Based on the cycle length, target offset, offset reference time, the cycle start time included in the signal control execution information received in the updated cycle, and the execution seconds of each step, A cycle that is synchronized with each traffic signal controller 2 is predicted, and based on this result, the traffic signal controller 2 at the reference intersection is in a predetermined time (for example, 5 seconds) before the end of each cycle. Although it was the structure which determines whether all the traffic signal controllers 2 of each intersection IS are synchronizing in the next cycle, it is not restricted to this No.
The central device 1 receives the cycle at a predetermined time before the end of each cycle of the traffic signal controller 2 at the reference intersection (for example, 5 seconds before) regardless of the cycle length and offset update timing. Based on the cycle start time included in the signal control execution information, the number of execution seconds of each step, and the cycle length, target offset, offset reference time, etc. included in the signal control command information transmitted in the previous cycle of the cycle, It may be configured to determine whether or not all the traffic signal controllers 2 at each intersection IS are synchronized in the next cycle.

  In the first embodiment, the green wave signal information has a configuration in which the start point of the blue signal coincides with the cycle start point. However, the present invention is not limited to this, and the start point of the blue signal is the cycle start point. The configuration may not be the same (for example, the start time of the red time matches the start time of the cycle). The information relay device 3 determines the current cycle and the next cycle of the traffic signal controller 2A based on the reference intersection signal information sent from the traffic signal controller 2A at the reference intersection every predetermined time (for example, every second). Since the information regarding the display time of each signal lamp color is transmitted to the in-vehicle apparatus 5 via the roadside communication device 4, the in-vehicle apparatus 5 grasps what the current signal lamp color is based on this information. It is possible to know which time the green light starts. If the start point of the green signal can be grasped, the in-vehicle device 5 can predict the time zone of the green signal at each of the reference intersection and the dependent intersection as described above.

  Moreover, in the above-mentioned Embodiment 1, the information relay apparatus 3 is based on the reference | standard intersection signal information sent from the traffic signal controller 2 of a reference | standard intersection in the said 1st cycle of the traffic signal controller 2 of a reference | standard intersection. Although it is the structure which grasps | ascertains the elapsed time from the cycle start time, it is not restricted to this. For example, as described in Japanese Patent Application Laid-Open No. 2010-039673, a current applied to a lamp line connecting a traffic signal controller 2 at a reference intersection and a signal lamp controlled by the traffic signal controller 2 is detected. The information relay device 3 includes a current sensor, and the information relay device 3 detects the display state of the signal lamp according to the detection result of the current sensor, and in the first cycle of the traffic signal controller 2 The structure which grasps | ascertains the elapsed time from a cycle start time may be sufficient.

In the first embodiment described above, the central device 1 is scheduled to transmit in the current cycle to the traffic signal controller 2 of each intersection IS constituting the provision target intersection (or already transmitted in the current cycle). The target intersection signal information including the target offset and cycle length included in the command information and the green time in the main road direction calculated based on the signal control parameter included in the signal control command information was created. I can't.
For example, the target offset and cycle length included in the signal control command information scheduled to be transmitted to each of these traffic signal controllers 2 in the current cycle (or already transmitted in the current cycle), and any cycle before that If the target offset and cycle length included in the signal control command information transmitted to each of these traffic signal controllers 2 are the same, the target intersection signal information including the latter target offset and cycle length is created. May be. In addition, the green time in the direction of the main road calculated based on the signal control parameter included in the signal control command information scheduled to be transmitted to each of these traffic signal controllers 2 is used in any traffic cycle before these traffic signals. If the blue time in the main road direction calculated based on the signal control parameter included in the signal control command information transmitted to each controller 2 is the same, the provided intersection signal information including the latter main road direction in the blue time It may be configured to create.

[2. Embodiment 2]
In the first embodiment, it is determined whether or not all the traffic signal controllers 2 of each intersection IS constituting the provision target intersection are synchronized in a predetermined first cycle, and when it is determined that all are synchronized. Only the green wave signal information related to the display schedule of the signal lamp color in the first cycle of the traffic signal controller 2 is created, whereas in the second embodiment, the traffic at each intersection IS constituting the provided intersection When only a part of the signal controller 2 is synchronized in the predetermined first cycle, the green wave signal information in the first cycle is created only for the traffic signal controller 2 that is in synchronization.

Hereinafter, the second embodiment will be described focusing on the differences from the first embodiment.
The calculation unit 101 of the central device 1 has each traffic signal stored in the storage unit 102 at a predetermined time (at least 5 seconds before the cycle end time of the traffic signal controller 2 at the reference intersection of the provided intersections). Based on the cycle in which the controller 2 is in synchronization, it is determined whether or not each traffic signal controller 2 at the intersection IS constituting the provision target intersection is in synchronization in the next cycle.

  The calculation unit 101 of the central device 1 transmits to the current cycle the traffic signal controller 2 determined to be synchronized in the next cycle among the traffic signal controllers 2 of each intersection IS constituting the provision target intersection. The blue time in the direction of the main road is calculated based on the signal control parameters included in the signal control command information that is scheduled (or already transmitted in the current cycle), and this blue time and the current cycle are scheduled to be transmitted (or Stores the offset and cycle length to be included in the signal control command information (already transmitted in the current cycle), and for the traffic signal controller 2 determined not to be synchronized, the offset, cycle length, and blue time in the main road direction Providing target intersection signal information storing a null value is created. Then, the created provisional intersection signal information is transmitted to the information relay device 3.

As in the first embodiment, the information relay device 3 is based on the provided intersection signal information sent from the central device 1 and the elapsed time from the cycle start time of the traffic signal controller 2A at the reference intersection. Create wave signal information.
Specifically, the control unit 304 of the information relay device 3 sets the offset, the cycle length, and the traffic signal controller 2 in which the null value is set as the blue time in the main road direction in the provision target intersection signal information, For the traffic signal controller 2 in which the cycle length and the blue hour are not stored, and the offset, the cycle length, and the blue time in the main road direction are set to values other than the null value, the offset, the cycle length, and the blue time are stored. Create green wave signal information in the next cycle.

Hereinafter, the green wave signal information creation processing of the information relay device 3 will be described using the same specific example as in the first embodiment.
First, since the operation content of the traffic signal controllers 2A to 2D is the same as that of the first embodiment, the description will not be repeated.
Next, the operation content of the central device 1 in the first to third cycles of the traffic signal controllers 2A to 2D will be described.
The central device 1 stores the traffic signal controller 2A stored in itself 5 seconds before the end of the first cycle of the traffic signal controller 2A (timing ta12 in FIG. 11). Based on the information that the traffic signal controller 2B is synchronized in the second cycle and the traffic signal controllers 2C and 2D are synchronized in the third cycle, the traffic signal controllers 2A and 2B are in the next cycle (2 cycles). Eye), it is determined that the traffic signal controllers 2C and 2D are not synchronized in the next cycle. Therefore, the central device 1 for the traffic signal controllers 2A and 2B, the offset and cycle length included in the signal control finger information scheduled to be transmitted in the second cycle, and the split and cycle length included in the signal control command information. The traffic time controller 2C, 2D calculates the offset signal, the cycle length, and the target intersection signal information for which the null value is set as the green time in the main road direction. Send.

  The central device 1 stores the traffic signal controller 2A stored in itself 5 seconds before the end of the second cycle of the traffic signal controller 2A (timing ta22 in FIG. 12), and is synchronized in the first cycle. Based on the information that the traffic signal controller 2B is synchronized in the second cycle and the traffic signal controllers 2C and 2D are synchronized in the third cycle, all of the traffic signal controllers 2A, 2B, 2C and 2D Is determined to be synchronized in the next cycle (third cycle). Therefore, the central device 1 includes the offset and cycle length included in the signal control command information scheduled to be transmitted in the second cycle for all the traffic signal controllers 2A, 2B, 2C, and 2D, and the signal control command information. The provided intersection signal information in which the blue time in the main road direction calculated from the split to be included and the cycle length is set is transmitted to the information relay device 3.

  The central device 1 stores the traffic signal controller 2A stored in itself 5 seconds before the end of the third cycle of the traffic signal controller 2A (timing ta32 in FIG. 13). Based on the information that the traffic signal controller 2B is synchronized in the second cycle and the traffic signal controllers 2C and 2D are synchronized in the third cycle, all of the traffic signal controllers 2A, 2B, 2C and 2D Is determined to be synchronized in the next cycle (fourth cycle). Therefore, the central device 1 adds the offset and cycle length to be included in the signal control command information scheduled to be transmitted to the third cycle for all of the traffic signal controllers 2A, 2B, 2C, and 2D, and the signal control command information. The provided intersection signal information in which the blue time in the main road direction calculated from the split to be included and the cycle length is set is transmitted to the information relay device 3.

Next, the operation content of the information relay device 3 in the first to third cycles of the traffic signal controllers 2A to 2D will be described.
The information relay device 3 receives the first-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the first cycle of the traffic signal controller 2A (the timing in FIG. 11). In this provision target intersection signal information, the traffic signal controller 2A has a cycle length of 120 seconds, a main road direction green time of 65 seconds, the traffic signal controller 2B has an offset of 20 seconds, and a cycle length of 120 seconds. Second, blue time of main road direction 77 seconds, traffic signal controllers 2C, 2D are set with offset, cycle length, and blue time of main road direction, so null values are set for traffic signal controllers 2A, 2B The information includes the elapsed time-3 seconds from the start of the second cycle of the traffic signal controller 2A as grasped from the reference intersection signal information. Te, create a green wave signal information in the second cycle, and transmits to the roadside communication device 4.

  The information relay device 3 receives the second-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the second cycle of the traffic signal controller 2A (the timing in FIG. 12). In this provision target intersection signal information, the traffic signal controller 2A has a cycle length of 120 seconds, a main road direction blue time of 65 seconds, the traffic signal controller 2B has an offset of 20 seconds, and a cycle length of 120 seconds. Seconds, blue time 77 seconds for main road direction, offset 40 seconds for traffic signal controller 2C, cycle length 120 seconds, blue time 77 seconds for main road direction, offset 60 seconds for traffic signal controller 2D, cycle length 120 Second, the blue time of the main road direction is set to 77 seconds, so the information included in the provided intersection signal information includes the reference intersection signal. Including age -3 seconds from cycle start time of the third cycle of the traffic signal controller 2A to know from the information, to create a green wave signal information in the third cycle, and transmits to the roadside communication device 4.

The information relay device 3 receives the third-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the third cycle of the traffic signal controller 2A (the timing in FIG. 13). In this provision target intersection signal information, the traffic signal controller 2A has a cycle length of 120 seconds, a main road direction blue time of 65 seconds, the traffic signal controller 2B has an offset of 20 seconds, and a cycle length of 120 seconds. Seconds, blue time 77 seconds for main road direction, offset 40 seconds for traffic signal controller 2C, cycle length 120 seconds, blue time 77 seconds for main road direction, offset 60 seconds for traffic signal controller 2D, cycle length 120 Second, the blue time of the main road direction is set to 77 seconds, so the information included in the provided intersection signal information includes the reference intersection signal. Including age -3 seconds from cycle start time of the fourth cycle of the traffic signal controller 2A to know from the information, to create a green wave signal information in the fourth cycle, and transmits to the roadside communication device 4.
FIG. 15 shows the contents of the green wave signal information created in the second to fourth cycles thus created.

[Effect of Embodiment 2]
According to the traffic system of the second embodiment, when only a part of the traffic signal controllers 2 of each intersection IS constituting the provided intersection is synchronized in a predetermined first cycle, Only for the traffic signal controller 2, green wave signal information relating to the display schedule of the signal lamp color in the first cycle is created. For this reason, among the traffic signal controllers 2 of each intersection IS constituting the provided intersection, the execution result of the signal control such as the offset (execution offset) actually executed because the tracking is being performed is the central device. As for the traffic signal controller 2 that deviates from the signal control parameter such as the offset (target offset) created by, the signal lamp color display schedule is not included in the green wave signal information.
Therefore, the traffic system according to the second embodiment can provide the signal information of the intersections to be provided to the vehicle 6 (the in-vehicle device 5) collectively while maintaining accuracy, and the vehicle 6 (the in-vehicle device 5) that has received the information. Can appropriately calculate the range of the traveling speed that can pass through the intersection that is in synchronization among the provision target intersections during the green light.

[3. Embodiment 3]
In the first embodiment, it is determined whether or not all the traffic signal controllers 2 of each intersection IS constituting the provision target intersection are synchronized in a predetermined first cycle, and when it is determined that all are synchronized. Only the green wave signal information related to the display schedule of the signal lamp color in the first cycle of the traffic signal controller 2 is created, whereas in the third embodiment, the traffic at each intersection IS constituting the provided intersection It is determined whether all of the signal controllers 2 are synchronized within a predetermined number of cycles after the predetermined first cycle (for example, within one cycle), and all are determined to be synchronized within a predetermined number of cycles. Only when this is done, the green wave signal information in the first cycle of these traffic signal controllers 2 is created.

Hereinafter, the third embodiment will be described focusing on the differences from the first embodiment.
The calculation unit 101 of the central device 1 has each traffic signal stored in the storage unit 102 at a predetermined time (at least 5 seconds before the cycle end time of the traffic signal controller 2 at the reference intersection of the provided intersections). Based on the cycle in which the controller 2 is synchronized, all the traffic signal controllers 2 of each intersection IS constituting the provided intersection are synchronized within a predetermined number of cycles (for example, within one cycle) after the next cycle. It is determined whether or not.

When the arithmetic unit 101 of the central device 1 determines that all the traffic signal controllers 2 of each intersection IS constituting the provided intersection are synchronized within one cycle after the next cycle, these traffic signals The blue time in the main road direction is calculated based on the signal control parameter included in the signal control command information that is scheduled to be transmitted to each controller 2 in the current cycle (or already transmitted in the current cycle). Then, the offset and cycle length included in the signal control command information scheduled to be transmitted to each of these traffic signal controllers 2 in the current cycle (or already transmitted in the current cycle), and the calculated blue time in the main road direction. To be provided to the information relay device 3.
On the other hand, when the arithmetic unit 101 determines that all of the traffic signal controllers 2 at each intersection IS constituting the provided intersection are not synchronized within one cycle after the next cycle, these traffic signal controls. Provided target intersection signal information in which a null value is set as offset, cycle length, and blue time in the main road direction for the machine 2 is transmitted to the information relay device 3.

As in the first embodiment, the information relay device 3 is based on the provided intersection signal information sent from the central device 1 and the elapsed time from the cycle start time of the traffic signal controller 2A at the reference intersection. Create wave signal information.
Specifically, when all the traffic signal controllers 2 at the intersection IS constituting the provided intersection are synchronized within one cycle after the next cycle, an offset, cycle length, main road from the central device 1 Since provision target intersection signal information in which an appropriate value is set as the blue time of the direction is sent, green wave signal information in the next cycle is created based on this provision target intersection signal information.
On the other hand, if all of the traffic signal controllers 2 at the intersection IS constituting the provided intersection do not become synchronized within one cycle after the next cycle, the central device 1 starts the offset, cycle length, and blue in the main road direction. Since provision target intersection signal information in which a null value is set as time is sent, the control unit 304 of the information relay device 3 creates green wave signal information in the next cycle in which no value is set.

Hereinafter, the green wave signal information creation processing of the information relay device 3 will be described using the same specific example as in the first embodiment.
First, since the operation content of the traffic signal controllers 2A to 2D is the same as that of the first embodiment, the description will not be repeated.
Next, the operation content of the central device 1 in the first to third cycles of the traffic signal controllers 2A to 2D will be described.
The central device 1 stores the traffic signal controller 2A stored in itself 5 seconds before the end of the first cycle of the traffic signal controller 2A (timing ta12 in FIG. 11). Based on the information that the traffic signal controller 2B is synchronized in the second cycle and the traffic signal controllers 2C and 2D are synchronized in the third cycle, all of the traffic signal controllers 2A, 2B, 2C and 2D Is determined to be synchronized within one cycle (third cycle) after the next cycle (second cycle).

Then, the central device 1 has a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal control device 2A in the first cycle for the traffic signal controller 2A, and a signal included in the signal control command information. Information on the 65 hours of green time in the main road direction calculated from the control parameters is included in the provided intersection signal information.
Further, the central device 1 for the traffic signal controller 2B has an offset of 20 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2B in the first cycle. Information on the blue time of 77 seconds in the main road direction calculated from the signal control parameter included in the information is included in the provision target intersection signal information.
Further, the central device 1 for the traffic signal controller 2C has an offset of 40 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2C in the first cycle. Information on the blue time of 77 seconds in the main road direction calculated from the signal control parameter included in the information is included in the provision target intersection signal information.
In addition, the central device 1 for the traffic signal controller 2D has an offset of 60 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2D in the first cycle. Information on the blue time of 77 seconds in the main road direction calculated from the signal control parameter included in the information is included in the provision target intersection signal information.
Then, the central device 1 transmits the provision target intersection signal information created in this way to the information relay device 3.

  The central device 1 stores the traffic signal controller 2A stored in itself 5 seconds before the end of the second cycle of the traffic signal controller 2A (timing ta22 in FIG. 12), and is synchronized in the first cycle. Based on the information that the traffic signal controller 2B is synchronized in the second cycle and the traffic signal controllers 2C and 2D are synchronized in the third cycle, all of the traffic signal controllers 2A, 2B, 2C and 2D Is determined to be synchronized within one cycle (fourth cycle) after the next cycle (third cycle).

Then, the central device 1 has a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal control device 2A in the second cycle for the traffic signal controller 2A, and a signal included in the signal control command information. Information on the 65 hours of green time in the main road direction calculated from the control parameters is included in the provided intersection signal information.
In addition, the central device 1 for the traffic signal controller 2B has an offset of 20 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2B in the second cycle. Information on the blue time of 77 seconds in the main road direction calculated from the signal control parameter included in the information is included in the provision target intersection signal information.
Further, the central device 1 for the traffic signal controller 2C has an offset of 40 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2C in the second cycle. Information on the blue time of 77 seconds in the main road direction calculated from the signal control parameter included in the information is included in the provision target intersection signal information.
In addition, the central device 1 for the traffic signal controller 2D has an offset of 60 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2D in the second cycle. Information on the blue time of 77 seconds in the main road direction calculated from the signal control parameter included in the information is included in the provision target intersection signal information.
Then, the central device 1 transmits the provision target intersection signal information created in this way to the information relay device 3.

  The central device 1 stores the traffic signal controller 2A stored in itself 5 seconds before the end of the third cycle of the traffic signal controller 2A (timing ta32 in FIG. 13). Based on the information that the traffic signal controller 2B is synchronized in the second cycle and the traffic signal controllers 2C and 2D are synchronized in the third cycle, all of the traffic signal controllers 2A, 2B, 2C and 2D Is determined to be synchronized within one cycle (fifth cycle) after the next cycle (fourth cycle).

Then, the central device 1, for the traffic signal controller 2 </ b> A, has a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2 </ b> A in the third cycle, a signal included in the signal control command information Information on the 65 hours of green time in the main road direction calculated from the control parameters is included in the provided intersection signal information.
In addition, the central device 1 for the traffic signal controller 2B has an offset of 20 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2B in the third cycle. Information on the blue time of 77 seconds in the main road direction calculated from the signal control parameter included in the information is included in the provision target intersection signal information.
Further, the central device 1 for the traffic signal controller 2C has an offset of 40 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2C in the third cycle. Information on the blue time of 77 seconds in the main road direction calculated from the signal control parameter included in the information is included in the provision target intersection signal information.
In addition, the central device 1 for the traffic signal controller 2D has an offset of 60 seconds and a cycle length of 120 seconds included in the signal control command information scheduled to be transmitted to the traffic signal controller 2D in the third cycle. Information on the blue time of 77 seconds in the main road direction calculated from the signal control parameter included in the information is included in the provision target intersection signal information.
Then, the central device 1 transmits the provision target intersection signal information created in this way to the information relay device 3.

Next, the operation content of the information relay device 3 in the first to third cycles of the traffic signal controllers 2A to 2D will be described.
The information relay device 3 receives the first-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the first cycle of the traffic signal controller 2A (the timing in FIG. 11). ta13)), since appropriate values are set as the offset, cycle length, and blue time in the main road direction in the provided intersection signal information, the information included in the provided intersection signal information includes the reference The green wave signal information in the second cycle is generated and transmitted to the roadside communication device 4 including the elapsed time from the cycle start time of the second cycle of the traffic signal controller 2A grasped from the intersection signal information-3 seconds. To do.

  The information relay device 3 receives the second-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the second cycle of the traffic signal controller 2A (the timing in FIG. 12). ta23)), since appropriate values are set as offset, cycle length, and blue time in the main road direction in the provision target intersection signal information, the information included in the provision target intersection signal information includes the reference The green wave signal information in the third cycle is generated and transmitted to the roadside communication device 4 including the elapsed time -3 seconds from the start point of the cycle of the third cycle of the traffic signal controller 2A grasped from the intersection signal information. To do.

The information relay device 3 receives the third-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the third cycle of the traffic signal controller 2A (the timing in FIG. 13). ta33)), since appropriate values for offset, cycle length, and green time in the main road direction are set in the provided intersection signal information, the information included in the provided intersection signal information includes the reference The green wave signal information in the fourth cycle is generated and transmitted to the roadside communication device 4 including the elapsed time -3 seconds from the cycle start time of the fourth cycle of the traffic signal controller 2A grasped from the intersection signal information. To do.
FIG. 16 shows the contents of the green wave signal information created in this way.

[Effect of Embodiment 3]
According to the traffic system of the third embodiment, all the traffic signal controllers 2 at each intersection IS constituting the provided intersection are synchronized within a predetermined number of cycles (for example, within one cycle) from a predetermined first cycle. Only when it is determined that all are synchronized within a predetermined number of cycles, green wave signal information relating to the display schedule of the signal lamp color in the first cycle of these traffic signal controllers 2 is created. . For this reason, the deviation between the signal control parameters such as the offset (target offset) created by the central device 1 and the execution results of the signal control such as the offset (execution offset) actually executed by these traffic signal controllers 2 is Less influence on green wave signal information.
Therefore, the traffic system of the third embodiment can provide the signal information of the intersections to be provided to the vehicle 6 (the in-vehicle device 5) collectively while maintaining a certain degree of accuracy. 5), it is possible to calculate the range of the traveling speed that can pass through the provided intersection during the green light while maintaining a certain accuracy.

  The third embodiment may be combined with the second embodiment described above. That is, when only a part of the traffic signal controllers 2 of each intersection IS constituting the provided intersection is synchronized within a predetermined number of cycles (for example, within one cycle) after a predetermined first cycle. The green wave signal information in the first cycle may be created only for the traffic signal controller 2 that is in synchronization.

[4. Embodiment 4]
In the first to third embodiments, the traffic signal controller 2 of each intersection IS that constitutes the provided intersection is subjected to some determination as to whether or not it is synchronized in a predetermined first cycle, and based on the determination result. In contrast, while the green wave signal information relating to the display schedule of the signal lamp color in the first cycle of the traffic signal controller 2 has been created, in the fourth embodiment, the traffic signal of each intersection IS constituting the provided intersection is provided. Regardless of whether the controller is synchronized in a predetermined first cycle, green wave signal information in the first cycle of these traffic signal controllers 2 is created.

Hereinafter, the fourth embodiment will be described focusing on the differences from the first embodiment.
Even if the signal control execution information is sent from the traffic signal controller 2 of each intersection IS that constitutes the provided intersection, the calculation unit 101 of the central device 1 determines whether the traffic signal controller 2 is synchronized. It is not mandatory to do.
The arithmetic unit 101 of the central device 1 first configures each provision target intersection at a predetermined time (for example, at least 5 seconds before the end of the cycle of the traffic signal controller 2 at the reference intersection of the provision target intersections). The execution offset, the cycle start time, and the execution seconds of each step included in the signal control execution information received most recently (that is, the current cycle) from the traffic signal controller 2 at the intersection IS (that is, the cycle before the current cycle) The execution offset in the previous cycle, the cycle start time, the number of execution seconds of each floor) and the signal control command information sent to the traffic signal controller 2 by the central device 1 most recently (that is, the previous cycle). Based on the cycle length and offset reference time (that is, the cycle length and offset reference time in the current cycle) Calculating a run offset in No. current cycle of the control device 2.
Next, the calculation unit 101 plans to transmit the calculated execution offset of the current cycle to each of the traffic signal controllers 2 in the current cycle (or the cycle length included in the signal control command information already transmitted in the current cycle). And the following width (that is, the cycle length and the following width in the next cycle) and the signal control command information scheduled to be transmitted to each of these traffic signal controllers 2 in the current cycle (or already transmitted in the current cycle). The provision target intersection signal information including the green time in the main road direction calculated from the signal control parameter is transmitted to the information relay device 3.

The information relay device 3 is a traffic signal controller 2 (see FIG. 1) at a reference intersection at a predetermined time (for example, every second) at a predetermined time (for example, when receiving the target intersection signal information from the central device 1). Then, green wave signal information is created based on the reference intersection signal information sent from the traffic signal controller 2A) and the provision target intersection signal information sent from the central device 1, and transmitted to the roadside communication device 4. .
Specifically, the information relay device 3 has a reference intersection that is grasped from the execution offset, cycle length, tracking width, and green time of each traffic signal controller 2 included in the provided intersection signal information and the reference intersection signal information. Based on the elapsed time from the cycle start time in the next cycle of the traffic signal controller 2, green wave signal information in the next cycle is created.

  FIG. 17 is a diagram illustrating an example of a format of green wave signal information in the fourth embodiment. If the number of subordinate intersections included in the provision target intersection is N, the green wave signal information is a predetermined first cycle (the next cycle in the above example) for the traffic signal controller 2 of the reference intersection among the provision target intersections. Cycle length, following width, blue time, elapsed time from the start of the cycle, and execution offset, cycle length, following width, blue time in the first cycle for each of the traffic signal controllers 2 at the dependent intersections 1 to N Contains information. The execution offset value in the first cycle stores the value of the execution offset in the previous cycle of the first cycle (the current cycle in the above example). It is assumed that the start point of the green light coincides with the start point of the cycle.

  When the in-vehicle device 5 receives the green wave signal information in the next cycle from the roadside communication device 4, first, as in the first embodiment, the cycle length, the green time, and the traffic signal controller 2 at the reference intersection included in this information are included. Based on the elapsed time from the cycle start time, the time zone of the green light in the next cycle of the reference intersection is predicted. For example, if the cycle length is 120 seconds, the blue time is 65 seconds, and the elapsed time from the cycle start time is −3 seconds, the cycle start time of the next cycle is 3 seconds later, and the blue time is from the cycle start time. Further, it can be determined that 65 seconds have elapsed. Accordingly, the time zone of the green light in the next cycle of the reference intersection can be predicted from 3 seconds to 68 seconds (= 3 seconds + 65 seconds).

Further, the in-vehicle device 5 determines the time zone of the green signal in the next cycle of each dependent intersection based on the execution offset, cycle length, tracking width, and green time of the traffic signal controller 2 at the dependent intersection included in the green wave signal information. Predict. For example, if the execution offset of the dependent intersection 1 is 10 seconds, the cycle length is 120 seconds, the tracking width is -1/8 or +1/8, and the green time is 77 seconds, the start point of the green signal is the shortest of the reference intersection It is after -2 seconds (= 3 seconds +10 seconds -120 seconds / 8) (that is, 2 seconds before) after adding the minimum tracking width to the time point offset by an offset from the start time point of the green signal, and is the longest blue signal at the reference intersection. It can be predicted that it is 28 seconds (= 3 seconds + 10 seconds + 120 seconds / 8) after adding the maximum follow-up width to the time point offset by the offset. The end point of the green light is the shortest, 75 seconds (= −2 seconds + 77 seconds) after adding the blue time to the calculated shortest start time, and the longest, the blue time is added to the longest calculated start time. It can be predicted that after 105 seconds (= 28 seconds + 77 seconds) added. Therefore, the time zone of the green light in the next cycle of the dependent intersection 1 can be predicted to be the start time point after 28 seconds and the end time point after 75 seconds to 105 seconds.
The in-vehicle device 5 calculates a range of the optimum traveling speed that can pass through these intersections during the green light by using the predicted time zone of the green light at each of the provided intersections to be provided.

Hereinafter, the green wave signal information creation processing of the information relay device 3 will be described using the same specific example as in the first embodiment.
First, since the operation content of the traffic signal controllers 2A, 2B, 2C, and 2D is the same as that of the first embodiment, the description will not be repeated.
Next, the operation content of the central device 1 in the first to third cycles of the traffic signal controllers 2A to 2D will be described.
The central device 1 starts with each of the traffic signal controllers 2A, 2B, 2C, and 2D 5 seconds before the end of the first cycle (post-update cycle) of the traffic signal controller 2A (timing ta12 in FIG. 11). Based on the cycle start time included in the signal control execution information received in the first cycle and the execution seconds of each layer (that is, the cycle start time in the pre-update cycle and the execution seconds of each layer) Cycle start time is calculated. Next, the central apparatus 1 calculates the cycle start time in the first cycle, the cycle length included in the signal control command information transmitted in the pre-update cycle, and the offset reference time (that is, the cycle length and offset reference time in the first cycle). ) To calculate the execution offset in the first cycle.
FIG. 18 summarizes the flow of processing in which the central device calculates the execution offset in the first cycle.

For the traffic signal controller 2A, the central device 1 sets the signal control parameter so that the execution offset is always 0 seconds as described in the first embodiment, so that the execution offset of the first cycle is set. Is calculated as 0 seconds.
When the central apparatus 1 does not know that the execution offset is always 0 seconds for the traffic signal controller 2A, the central apparatus 1 calculates the execution offset of the first cycle as follows. The central device 1 determines the cycle start time 11:58:20 included in the signal control execution information received from the traffic signal controller 2A in the first cycle and the execution seconds of each step included in the signal control execution information. The cycle start time of the first cycle is calculated as 12:00:00 (= 11: 58: 20 + 100 seconds) from the cycle length 100 seconds of the pre-update cycle obtained by addition. The cycle start time 12:00 of the first cycle is the offset control time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2A in the pre-update cycle. The central device 1 calculates the execution offset of the first cycle of the traffic signal controller 2 </ b> A as 0 seconds because it coincides with the time 12: 00: 00: 00 when the included cycle length of 120 seconds is added.

  For the traffic signal controller 2B, the central device 1 includes the cycle start time 11:58:30 included in the signal control execution information received from the traffic signal controller 2B in the first cycle, and the signal control execution information. The cycle start time of the first cycle is calculated as 12:00:10 (= 11: 58: 30 + 100 seconds) from the cycle length 100 seconds of the pre-update cycle obtained by adding the execution seconds of each layer. The cycle start time 12:00:10 of the first cycle is set to the signal control command information at the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2B in the pre-update cycle. The central device 1 calculates the execution offset of the first cycle of the traffic signal controller 2B as 10 seconds since it is 10 seconds after the time 12: 00: 00: 00 when the included cycle length of 120 seconds is added.

  For the traffic signal controller 2C, the central device 1 includes the cycle start time 11:58:40 included in the signal control execution information received from the traffic signal controller 2C in the first cycle, and the signal control execution information. The cycle start time of the first cycle is calculated as 12:00:20 (= 11: 58: 40 + 100 seconds) from the cycle length 100 seconds of the pre-update cycle obtained by adding the execution seconds of each layer. The cycle start time 12:00:20 of the first cycle is set to the signal control command information at the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2C in the pre-update cycle. Since it is 20 seconds after 12: 00: 00: 00 when the included cycle length of 120 seconds is added, the central device 1 calculates the execution offset of the first cycle of the traffic signal controller 2C as 20 seconds.

  For the traffic signal controller 2D, the central device 1 includes the cycle start time 11:58:50 included in the signal control execution information received from the traffic signal controller 2D in the first cycle and the signal control execution information. The cycle start time of the first cycle is calculated as 12:00:30 (= 11: 58: 50 + 100 seconds) from the cycle length 100 seconds of the pre-update cycle obtained by adding the execution seconds of each layer. The cycle start time 12:00:30 of the first cycle is set to the signal control command information at the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2D in the pre-update cycle. Since it is 30 seconds after 12: 00: 00: 00 when the included cycle length of 120 seconds is added, the central device 1 calculates the execution offset of the first cycle of the traffic signal controller 2D as 30 seconds.

  Next, the central device 1 determines the blue time in the direction of the main road RM based on the split and cycle length included in the signal control command information scheduled to be transmitted in the first cycle for each of the traffic signal controllers 2A, 2B, 2C and 2D. Is calculated. For example, for each of the traffic signal controllers 2A, 2B, 2C, and 2D, splits in the main road RM direction and the secondary road direction are 72 seconds: 48 seconds, 84 seconds: 36 seconds, 84 seconds: 36 seconds, 84 seconds: 36 seconds. If the yellow time and red time in the main road RM direction and the secondary road direction are 4 seconds and 3 seconds, the blue time in the main road RM direction of each of the traffic signal controllers 2A, 2B, 2C, 2D is 65 Second (= 72 seconds-4 seconds-3 seconds), 77 seconds (= 84 seconds-4 seconds-3 seconds), 77 seconds (= 84 seconds-4 seconds-3 seconds), 77 seconds (= 84 seconds-4 seconds) -3 seconds). Then, the central device 1 transmits the execution offset in the first cycle calculated for each of the traffic signal controllers 2A, 2B, 2C, and 2D and the first cycle for each of the traffic signal controllers 2A, 2B, 2C, and 2D. Information relay device that provides the target intersection signal information including the cycle length of 120 seconds and the tracking width of 1/8 or +1/8 to be included in the signal control command information that is scheduled to be performed, and the blue time in the direction of the main road RM calculated above. 3 to send.

At the second cycle of the traffic signal controllers 2A, 2B, 2C, and 2D, the central device 1 first starts 5 seconds before the end of the second cycle of the traffic signal controller 2A (timing ta22 in FIG. 12). The execution offset included in the received signal control execution information, the execution seconds of each layer (that is, the execution offset in the first cycle, the execution seconds of each layer), and the signal control command information transmitted in the first cycle Based on the cycle length (that is, the cycle length in the second cycle), the execution offset in the second cycle is calculated (calculation method 4-1). Alternatively, the central device 1 is based on the cycle start time included in the signal control execution information received in the second cycle and the execution seconds of each step (that is, the cycle start time in the first cycle and the execution seconds of each step). The cycle start time in the second cycle is calculated, the cycle start time in the second cycle, the cycle length included in the signal control command information transmitted in the first cycle, and the offset reference time (that is, the cycle in the second cycle) The execution offset in the second cycle may be calculated based on the (long, offset reference time) (calculation method 4-2). This calculation method 4-2 is the same as the execution offset calculation method in the first cycle.
FIG. 19 summarizes the flow of processing in which the central device calculates the execution offset in the second cycle. In FIG. 19, a solid line indicates the flow of the calculation method 4-1, and a broken line indicates the flow of the calculation method 4-2.
In the calculation of the execution offset in the first cycle, the above calculation method 4-2 cannot be applied because the target offset is updated in the pre-update cycle.

For the traffic signal controller 2A, as in the first cycle, since the signal control parameter is set so that the execution offset is always 0 seconds, the execution offset in the second cycle is calculated as 0 seconds.
When the central apparatus 1 does not know that the execution offset is always 0 seconds for the traffic signal controller 2A, the central apparatus 1 calculates the execution offset of the second cycle as follows. For the traffic signal controller 2A, the execution offset in the first cycle is 0 seconds, and the cycle length (execution cycle length in the first cycle) obtained by adding the execution seconds of each step in the first cycle is 120 seconds. Since the cycle length included in the signal control command information is 120 seconds, the central apparatus 1 sets the execution offset in the second cycle to 0 seconds (= execution offset 0 seconds in the first cycle + 1 execution cycle in the first cycle). Long 120 seconds-cycle length 120 seconds included in the signal control command information) (calculation method 4-1).
Alternatively, the central apparatus 1 may calculate the execution offset in the second cycle as follows. That is, the central device 1 has the cycle start time 12:00: 00 included in the signal control execution information received from the traffic signal controller 2A in the second cycle, and the execution seconds of each step included in the signal control execution information. The cycle start time of the second cycle is calculated as 12:02:00 (= 12: 00: 0120 seconds) from the cycle length of 120 seconds obtained by adding. The cycle start time 12:02:00 of the second cycle is set to the signal control command information at the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2A in the first cycle. The central device 1 calculates the execution offset of the second cycle of the traffic signal controller 2A as 0 seconds because it coincides with the time 12:02:00 (added by 3 times the included cycle length of 120 seconds) (calculation). Method 4-2).

For the traffic signal controller 2B, the execution offset in the first cycle is 10 seconds, and the cycle length (execution cycle length in the first cycle) obtained by adding the execution seconds of each step in the first cycle is 130 seconds. Since the cycle length included in the signal control command information is 120 seconds, the central apparatus 1 sets the execution offset in the second cycle to 20 seconds (= execution offset in the first cycle 10 seconds + 1 cycle) Long 130 seconds-cycle length 120 seconds included in the signal control command information) (calculation method 4-1).
Alternatively, the central apparatus 1 may calculate the execution offset in the second cycle as follows. That is, the central device 1 has the cycle start time 12:00:10 included in the signal control execution information received from the traffic signal controller 2B in the second cycle, and the execution seconds of each step included in the signal control execution information. The cycle start time of the second cycle is calculated as 12:02:20 (= 12: 00: 10 + 130 seconds) from the cycle length of 130 seconds obtained by adding. The cycle start time 12:02:20 of the second cycle is set to the signal control command information at the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2B in the first cycle. Since it is 20 seconds after 12:02:00, when the included cycle length of 120 seconds is added, the central device 1 calculates the execution offset of the second cycle of the traffic signal controller 2B as 20 seconds ( Calculation method 4-2).

For the traffic signal controller 2C, the execution offset in the first cycle is 20 seconds, and the cycle length (execution cycle length in the first cycle) obtained by adding the execution seconds of each step in the first cycle is 135 seconds. Since the cycle length included in the signal control command information is 120 seconds, the central apparatus 1 sets the execution offset in the second cycle to 35 seconds (= the execution offset 20 seconds in the first cycle + 1 execution cycles in the first cycle). Long 135 seconds—cycle length 120 seconds included in the signal control command information) is calculated (calculation method 4-1).
Alternatively, the central apparatus 1 may calculate the execution offset in the second cycle as follows. That is, the central device 1 has the cycle start time 12:00:20 included in the signal control execution information received from the traffic signal controller 2C in the second cycle, and the execution seconds of each step included in the signal control execution information. The cycle start time of the second cycle is calculated as 12:02:35 (= 12: 00: 20 + 135 seconds) from the cycle length of 135 seconds obtained by adding. The cycle start time 12:02:35 of the second cycle is the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2C in the first cycle. Since it is 35 seconds after 12:02:00, when the included cycle length of 120 seconds is added, the central device 1 calculates the execution offset of the second cycle of the traffic signal controller 2C as 35 seconds ( Calculation method 4-2).

For the traffic signal controller 2D, the execution offset in the first cycle is 30 seconds, and the cycle length (execution cycle length in the first cycle) obtained by adding the execution seconds of each step in the first cycle is 135 seconds. Since the cycle length included in the signal control command information is 120 seconds, the central device 1 sets the execution offset in the second cycle to 45 seconds (= execution offset in the first cycle 30 seconds + 1 execution cycle in the first cycle) Long 135 seconds—cycle length 120 seconds included in the signal control command information) is calculated (calculation method 4-1).
Alternatively, the central apparatus 1 may calculate the execution offset in the second cycle as follows. That is, the central device 1 has the cycle start time 12:00:30 included in the signal control execution information received from the traffic signal controller 2D in the second cycle, and the execution seconds of each step included in the signal control execution information. The cycle start time of the second cycle is calculated as 12:02:45 (= 12: 00: 30 + 135 seconds) from the cycle length of 135 seconds obtained by adding. The cycle start time 12:02:45 of the second cycle is the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2D in the first cycle. Since it is 45 seconds after 12:02:00, when the included cycle length of 120 seconds is added, the central device 1 calculates the execution offset of the second cycle of the traffic signal controller 2D as 45 seconds ( Calculation method 4-2).

  Next, the central device 1 determines the blue time in the direction of the main road RM based on the split and cycle length included in the signal control command information scheduled to be transmitted in the second cycle for each of the traffic signal controllers 2A, 2B, 2C, and 2D. Is calculated. Then, the central device 1 transmits the execution offset in the second cycle calculated for each of the traffic signal controllers 2A, 2B, 2C, and 2D and the second cycle for each of the traffic signal controllers 2A, 2B, 2C, and 2D. Information relay device that provides the target intersection signal information including the cycle length of 120 seconds and the tracking width of 1/8 or +1/8 to be included in the signal control command information that is scheduled to be performed, and the blue time in the direction of the main road RM calculated above. 3 to send.

  At the third cycle, each of the traffic signal controllers 2A, 2B, 2C, and 2D is first in the central device 1 5 seconds before the end of the third cycle of the traffic signal controller 2A (timing ta32 in FIG. 13). The execution offset included in the received signal control execution information, the execution seconds of each layer (that is, the execution offset in the second cycle, the execution seconds of each layer), and the signal control command information transmitted in the second cycle Based on the cycle length (that is, the cycle length in the third cycle), the execution offset in the third cycle is calculated. This is the same as the calculation method 4-1. Alternatively, the central device 1 is based on the cycle start time included in the signal control execution information received in the third cycle and the execution seconds of each step (that is, the cycle start time in the second cycle and the execution seconds of each step). The cycle start time in the third cycle is calculated, the cycle start time in the third cycle, the cycle length included in the signal control command information transmitted in the second cycle, and the offset reference time (that is, the cycle in the third cycle). The execution offset in the third cycle may be calculated based on the length and the offset reference time. This is the same as the calculation method 4-2 described above.

  For the traffic signal controller 2A, as in the second cycle, since the signal control parameter is set so that the execution offset is always 0 seconds, the execution offset in the third cycle is calculated as 0 seconds.

For the traffic signal controller 2B, the execution offset in the second cycle is 20 seconds, and the cycle length (execution cycle length in the second cycle) obtained by adding the execution seconds of each step in the second cycle is 120 seconds. Since the cycle length included in the signal control command information is 120 seconds, the central apparatus 1 calculates the execution offset in the second cycle as 20 seconds (= 10 seconds + 120 seconds−120 seconds) (calculation method) 4-1).
Alternatively, the central apparatus 1 may calculate the execution offset in the third cycle as follows. That is, the central device 1 performs the cycle start time 12:02:20 included in the signal control execution information received from the traffic signal controller 2B in the third cycle, and the execution seconds of each step included in the signal control execution information. The cycle start time of the third cycle is calculated as 12:04:20 (= 12: 02: 20 + 120 seconds) from the cycle length of 120 seconds obtained by adding. The cycle start time 12:04:20 in the third cycle is the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2B in the second cycle. Since it is 20 seconds after the time 12:04:00 when four times the included cycle length of 120 seconds is added, the central device 1 calculates the execution offset of the third cycle of the traffic signal controller 2B as 20 seconds ( Calculation method 4-2).

For the traffic signal controller 2C, the execution offset in the second cycle is 35 seconds, and the cycle length (execution cycle length in the second cycle) obtained by adding the execution seconds of each step in the second cycle is 125 seconds. Since the cycle length included in the signal control command information is 120 seconds, the central apparatus 1 calculates the execution offset in the third cycle as 40 seconds (= 35 seconds + 125 seconds−120 seconds) (calculation method) 4-1).
Alternatively, the central apparatus 1 may calculate the execution offset in the third cycle as follows. That is, the central device 1 performs the cycle start time 12:02:35 included in the signal control execution information received from the traffic signal controller 2C in the third cycle, and the execution seconds of each step included in the signal control execution information. The cycle start time of the third cycle is calculated as 12:04:40 (= 12: 02: 35 + 125 seconds) from the cycle length of 125 seconds obtained by adding. The cycle start time 12:04:40 in the third cycle is the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2C in the second cycle. Since it is 40 seconds after 12:04:00 when the included cycle length of 120 seconds is added, the central device 1 calculates the execution offset of the third cycle of the traffic signal controller 2C as 40 seconds ( Calculation method 4-2).

For the traffic signal controller 2D, the execution offset in the second cycle is 45 seconds, and the cycle length (execution cycle length in the second cycle) obtained by adding the execution seconds of each step in the second cycle is 135 seconds. Since the cycle length included in the signal control command information is 120 seconds, the central apparatus 1 calculates the execution offset in the third cycle as 60 seconds (= 45 seconds + 135 seconds−120 seconds) (calculation method) 4-1).
Alternatively, the central apparatus 1 may calculate the execution offset in the third cycle as follows. That is, the central device 1 performs the cycle start time 12:02:45 included in the signal control execution information received from the traffic signal controller 2D in the third cycle, and the execution seconds of each step included in the signal control execution information. The cycle start time of the third cycle is calculated as 12:05:00 (= 12: 02: 45 + 135 seconds) from the cycle length of 135 seconds obtained by adding. The cycle start time 12:05:00 of the third cycle is set to the signal control command information at the offset reference time 11:56:00 included in the signal control command information transmitted to the traffic signal controller 2D in the second cycle. Since it is 60 seconds after the time 12:04:00 when four times the included cycle length of 120 seconds is added, the central device 1 calculates the execution offset of the third cycle of the traffic signal controller 2D as 60 seconds ( Calculation method 4-2).

  Next, the central apparatus 1 determines the blue time in the direction of the main road RM based on the split and cycle length included in the signal control command information scheduled to be transmitted in the third cycle for each of the traffic signal controllers 2A, 2B, 2C, and 2D. Is calculated. Then, the central device 1 transmits the execution offset in the third cycle calculated for each of the traffic signal controllers 2A, 2B, 2C, and 2D and the third cycle for each of the traffic signal controllers 2A, 2B, 2C, and 2D. Information relay device that provides the target intersection signal information including the cycle length of 120 seconds and the tracking width of 1/8 or +1/8 to be included in the signal control command information that is scheduled to be performed, and the blue time in the direction of the main road RM calculated above. 3 to send.

Next, the operation content of the information relay device 3 in the first to third cycles of the traffic signal controllers 2A to 2D will be described.
The information relay device 3 receives the first-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the first cycle of the traffic signal controller 2A (the timing in FIG. 11). In the provision target intersection signal information, the traffic signal controller 2A has a cycle length of 120 seconds, a tracking width of 1/8 or +1/8, a green time of 65 seconds in the main road direction, a traffic signal controller Execution offset 10 seconds for 2B, cycle length 120 seconds, tracking width -1/8 or +1/8, main road direction blue time 77 seconds, traffic signal controller 2C execution offset 20 seconds, cycle length 120 seconds, tracking width -1/8 or +1/8, main road direction blue time 77 seconds, traffic signal controller 2D execution offset 30 seconds, cycle length 120 seconds, tracking width -1/8 Since +1/8, 77 seconds of blue time in the main road direction is included, this information includes the elapsed time from the cycle start time of the second cycle of the traffic signal controller 2A grasped from the reference intersection signal information− The green wave signal information in the second cycle including 3 seconds is created and transmitted to the roadside communication device 4.

  The information relay device 3 receives the second-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the second cycle of the traffic signal controller 2A (the timing in FIG. 12). ta23)), for the traffic signal controller 2A to be provided, the traffic signal controller 2A has a cycle length of 120 seconds, a tracking width of 1/8 or +1/8, a green time of 65 seconds in the main road direction, a traffic signal controller Execution offset 20 seconds for 2B, cycle length 120 seconds, tracking width 1/8 or +1/8, main road direction blue time 77 seconds, traffic signal controller 2C execution offset 35 seconds, cycle length 120 seconds, tracking width -1/8 or +1/8, main road direction blue time 77 seconds, traffic signal controller 2D execution offset 45 seconds, cycle length 120 seconds, tracking width -1/8 +1/8, the blue time of the main road direction 77 seconds is included, so this information includes the elapsed time from the start of the cycle of the third cycle of the traffic signal controller 2A as grasped from the reference intersection signal information − The green wave signal information in the third cycle including 3 seconds is created and transmitted to the roadside communication device 4.

The information relay device 3 receives the third-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the third cycle of the traffic signal controller 2A (the timing in FIG. 13). ta33)), the traffic signal controller 2A has a cycle length of 120 seconds, a tracking width of 1/8 or +1/8, a green time of 65 seconds in the main road direction, and a traffic signal controller. Execution offset 20 seconds, cycle length 120 seconds, tracking width 1/8 or +1/8, main road direction blue time 77 seconds, traffic signal controller 2C execution offset 40 seconds, cycle length 120 seconds, tracking width -1/8 or +1/8, blue time in main road direction 77 seconds, traffic signal controller 2D execution offset 60 seconds, cycle length 120 seconds, tracking width -1/8 Since +1/8, 77 seconds of blue time in the main road direction is included, this information includes the elapsed time from the start of the cycle of the fourth cycle of the traffic signal controller 2A that is grasped from the reference intersection signal information− The green wave signal information in the fourth cycle including 3 seconds is created and transmitted to the roadside communication device 4.
FIG. 20 shows the contents of the green wave signal information in the second to fourth cycles created in this way. Note that the tracking width may be expressed as a percentage by dividing the minimum value and the maximum value of the tracking width instead of using a symbol indicating “−1/8 or +1/8” (for example, “−25%”). And “+ 25%”), the minimum value and maximum value of the tracking width may be divided and expressed directly in seconds (for example, “−15 seconds” and “+15 seconds”).

[Effect of Embodiment 4]
According to the traffic system of the fourth embodiment, regardless of whether or not the traffic signal controllers 2 of each intersection IS constituting the provision target intersection are synchronized in a predetermined first cycle, these traffic signal controllers 2 A green wave signal relating to the display schedule of the signal light colors of these traffic signal controllers 2 in the first cycle, including the execution offset in the previous cycle of the first cycle, the cycle length in the first cycle, the tracking width, etc. Create information.
The in-vehicle device 5 is an execution offset in the previous cycle of the first cycle, an offset calculated from information (signal control execution information) obtained as a result of the traffic signal controller 2 actually performing signal control, From the cycle length in the first cycle, the tracking width, and the blue time in the traveling direction of the vehicle 6, the start point and the end point of the green signal in the first cycle of each intersection according to the movement of the traffic signal controller 2 are determined. Since the prediction can be made, the range of the traveling speed that can pass through the provided intersection during the green light can be appropriately calculated.

  In the fourth embodiment, as described in the first embodiment, the provision target intersection may not be configured only by the intersections included in the same subarea. In this case, the execution offset for the traffic signal controller 2 of each dependent intersection included in the provision target intersection may be a relative offset with respect to the traffic signal controller 2 of the reference intersection included in the provision target intersection.

[5. Embodiment 5]
In the fourth embodiment, the central device 1 calculates the execution offset in the previous cycle of the predetermined first cycle for the traffic signal controller 2 of each intersection IS constituting the provision target intersection, and the information relay device 3 performs this execution. The offset was included in the green wave signal information in the first cycle, but instead, the central device 1 predicts the execution offset in each predetermined first cycle of each of these traffic signal controllers 2, The information relay device 3 may be configured to include the predicted value of the execution offset in the green wave signal information in the first cycle.

Hereinafter, the fifth embodiment will be described focusing on differences from the fourth embodiment.
At a predetermined time (for example, at least 5 seconds before the end of the cycle of the traffic signal controller 2 at the reference intersection among the provided intersections), the arithmetic unit 101 of the central device 1 first, as in the fourth embodiment, The execution offset, the cycle start time, the number of execution seconds of each step included in the signal control execution information received most recently (that is, the current cycle) from the traffic signal controller 2 of each intersection IS constituting the provision target intersection, and these Based on the cycle length and the offset reference time included in the signal control command information that the central device 1 has most recently transmitted to the traffic signal controller 2 (that is, the previous cycle of the current cycle), the traffic signal controllers 2 Calculate the execution offset in the current cycle.

Next, the calculation unit 101 calculates the execution offset in the current cycle and the cycle length and tracking width included in the signal control command information (that is, the cycle length and tracking width in the current cycle) for these traffic signal controllers 2. Based on the above, the execution offset in the next cycle is calculated. The execution offset in the next cycle takes into account fluctuations due to the tracking width, and includes a minimum value and a maximum value. The minimum value of the execution width in the next cycle is obtained by adding the minimum value of the following width to the calculated execution offset in the current cycle, and the maximum value is obtained by adding the maximum value of the following width to the calculated execution offset in the current cycle. Can be calculated.
Alternatively, the calculation unit 101 may calculate the execution offset in the next cycle as follows. That is, the cycle length to be executed in the current cycle from the execution offset in the current cycle and the cycle length, target offset, and tracking width included in the signal control command information (that is, cycle length, target offset, tracking width in the current cycle) The execution offset in the next cycle is calculated from the execution cycle length in the current cycle, the execution offset in the current cycle, and the cycle length included in the signal control command information (that is, the cycle length in the current cycle). . In this case, the minimum value and the maximum value of the execution offset in the next cycle are the same value.

  Next, the calculation unit 101 plans to transmit the minimum value and the maximum value of the execution offset in the next cycle calculated, the signal control that is to be transmitted to each of these traffic signal controllers 2 in the current cycle (or already transmitted in the current cycle). The cycle length to be included in the command information and the direction of the main road direction calculated from the signal control parameter to be included in the signal control command information to be transmitted to each of these traffic signal controllers 2 in the current cycle (or already transmitted in the current cycle) The provided intersection signal information including the blue time is transmitted to the information relay device 3.

The information relay device 3 is a traffic signal controller 2 at the reference intersection (in FIG. 1, the traffic signal controller in FIG. 1) every predetermined time (for example, every second) at a predetermined time (for example, when the provision target intersection signal information is received). Green wave signal information is created based on the reference intersection signal information sent from 2A) and the provision target intersection signal information sent from the central device 1, and transmitted to the roadside communication device 4.
Specifically, the information relay device 3 includes the minimum value and the maximum value of the execution offset of each traffic signal controller 2 included in the provided intersection signal information, the cycle length, the blue time in the main road direction, and the reference intersection signal information. The green wave signal information in the next cycle is created based on the elapsed time from the cycle start time in the next cycle of the traffic signal controller 2 at the reference intersection grasped from

  FIG. 21 is a diagram illustrating an example of a format of green wave signal information in the fifth embodiment. If the number of subordinate intersections included in the provision target intersection is N, the green wave signal information is a predetermined first cycle (the next cycle in the above example) for the traffic signal controller 2 of the reference intersection among the provision target intersections. Cycle length, green time, elapsed time from cycle start time, and minimum and maximum values of execution offset in the first cycle for each of traffic signal controllers 2 at dependent intersections 1 to N, cycle length, blue time Contains information. The minimum value and the maximum value of the execution offset in the first cycle store the minimum value and the maximum value of the execution offset in the first cycle predicted in consideration of the following. It is assumed that the start point of the green light coincides with the start point of the cycle.

  When the in-vehicle device 5 receives the green wave signal information in the next cycle from the roadside communication device 4, first, as in the fourth embodiment, first, the cycle length, the green time, and the traffic signal controller 2 at the reference intersection included in this information are included. Based on the elapsed time from the cycle start time, the time zone of the green light in the next cycle of the reference intersection is predicted. For example, if the cycle length is 120 seconds, the blue time is 65 seconds, and the elapsed time from the cycle start time is −3 seconds, the cycle start time of the next cycle is 3 seconds later, and the blue time is from the cycle start time. Further, it can be determined that 65 seconds have elapsed. Accordingly, the time zone of the green light in the next cycle of the reference intersection can be predicted from 3 seconds to 68 seconds (= 3 seconds + 65 seconds).

Further, the in-vehicle device 5 determines the green signal in the next cycle of each dependent intersection based on the minimum and maximum values of the execution offset of the traffic signal controller 2 at the dependent intersection included in the green wave signal information, the cycle length, and the blue time. Predict the time zone. For example, if the minimum value of the execution offset of the dependent intersection 1 is -5 seconds, the maximum value is +25 seconds, the cycle length is 120 seconds, and the green time is 77 seconds, the start point of the green light is the shortest of the blue light at the reference intersection. Since it is a time point shifted by the minimum value of the execution offset from the start time point, it is -2 seconds (= 3 seconds-5 seconds) later (that is, 2 seconds before), and the longest execution offset from the start time point of the green light at the reference intersection It can be predicted that the time is shifted by the maximum value of. The end point of the green light is the shortest, 28 seconds (= 3 seconds + 25 seconds) after adding the blue time to the calculated shortest start time, and the blue time is added to the longest calculated longest start time. It can be predicted that after 105 seconds (= 28 seconds + 77 seconds). Therefore, the time zone of the green light in the next cycle of the dependent intersection 1 can be predicted to be from the current time point to 28 seconds later and the end time point from 75 seconds later to 105 seconds later.
The in-vehicle device 5 calculates a range of the optimum traveling speed that can pass through these intersections during the green light by using the predicted time zone of the green light at each of the provided intersections to be provided.

Hereinafter, the green wave signal information creation processing of the information relay device 3 will be described using the same specific example as in the fourth embodiment.
First, since the operation content of the traffic signal controllers 2A, 2B, 2C, and 2D is the same as that of the first embodiment, the description will not be repeated.
Next, the operation content of the central device 1 in the first to third cycles of the traffic signal controllers 2A to 2D will be described.
As in the fourth embodiment, the central device 1 starts with the traffic signal controller 2A, 5 seconds before the end of the first cycle (post-update cycle) of the traffic signal controller 2A (timing ta12 in FIG. 11). For each of 2B, 2C, and 2D, the cycle start time included in the signal control execution information received in the first cycle, the execution seconds of each layer (that is, the cycle start time in the cycle before update, the execution seconds of each layer) Based on this, the cycle start time in the first cycle is calculated, the cycle start time in the first cycle, the cycle length included in the signal control command information transmitted in the pre-update cycle, and the offset reference time (that is, in the first cycle). The execution offset in the first cycle is 0 seconds based on the cycle length and offset reference time) 0 seconds, 20 seconds, is calculated to be 30 seconds.

Next, the central device 1 adds the cycle length and the tracking width (that is, 1) included in the signal control command information to the calculated execution offset in the first cycle for each of the traffic signal controllers 2A, 2B, 2C, and 2D. The maximum value of the execution offset in the next cycle (second cycle) is calculated by adding the maximum value of the tracking width obtained from the cycle length and the tracking width in the cycle), and the signal control is added to the execution offset in the first cycle. The minimum value of the execution offset in the second cycle is calculated by adding the minimum value of the tracking width obtained from the cycle length and the tracking width included in the command information (calculation method 5-1).
Alternatively, the central device 1 determines, for each of the traffic signal controllers 2A, 2B, 2C, and 2D, the calculated execution offset in the first cycle and the cycle length, target offset, and tracking width (included in the signal control command information). In other words, the execution cycle length in the first cycle is predicted from the cycle length in the first cycle, the target offset, the tracking width), the execution cycle length in the first cycle, the execution offset in the first cycle, and the signal control described above. The execution offset in the second cycle may be calculated from the cycle length included in the command information (that is, the cycle length in the first cycle) (calculation method 5-2).
FIG. 22 summarizes the flow of the process in which the central device calculates the execution offset in the second cycle. In FIG. 22, the solid line indicates the flow of the execution offset calculation process in the first cycle, the dotted line indicates the flow of the calculation method 5-1, and the alternate long and short dash line indicates the flow of the calculation method 5-2. Is shown.

For the traffic signal controller 2A, the central device 1 sets the signal control parameter so that the execution offset is always 0 seconds as described in the first embodiment, so the execution offset in the second cycle is Is estimated to be 0 seconds.
When the central apparatus 1 does not know that the execution offset is always 0 seconds for the traffic signal controller 2A, the central apparatus 1 calculates the execution offset of the second cycle as follows. For the traffic signal controller 2A, the central device 1 compares the execution offset 0 seconds in the first cycle with the target offset 0 seconds included in the signal control command information transmitted to the traffic signal controller 2A in the pre-update cycle. Since both values are the same, it is determined that synchronization is being performed in the first cycle. Then, the central apparatus 1 predicts that the traffic signal controller 2A executes the cycle length of 120 seconds included in the signal control command information as the cycle length in the first cycle, and sets the execution offset in the second cycle to 0 seconds (= It is predicted that the execution offset is 0 second in the first cycle + cycle length 120 seconds in the first cycle-cycle length 120 seconds included in the signal control command (calculation method 5-2). Description of an example in which the calculation method 5-1 is applied is omitted.

For the traffic signal controller 2B, the execution offset in the first cycle is 10 seconds, the cycle length is 120 seconds, the tracking width is −1/8 or +1/8, that is, −15 seconds (= 120 seconds × −1) / 8) to +15 seconds (= 120 seconds × + 1/8), the central device 1 sets the minimum value of the execution offset in the second cycle to −5 seconds (= 10 seconds to 15 seconds), the maximum The value is calculated as 25 seconds (= 10 seconds + 15 seconds) (calculation method 5-1).
Alternatively, the central apparatus 1 may calculate the execution offset in the second cycle as follows. That is, the execution offset 10 seconds in the first cycle is 10 seconds less than the target offset 20 seconds included in the signal control command information transmitted to the traffic signal controller 2B in the pre-update cycle, and the traffic signal controller 2B Can follow in the range of -15 seconds to +15 seconds. Therefore, the central apparatus 1 is configured such that the traffic signal controller 2B has a cycle length of 120 seconds to 10 seconds included in the signal control command information as a cycle length in the first cycle. The extended 130 seconds are predicted to be executed, and the execution offset in the second cycle is set to 20 seconds (= the execution offset 10 seconds in the first cycle + 1 execution cycle length 130 seconds in the first cycle−the cycle length 120 seconds included in the signal control command information) ) And calculate. In this case, the minimum value and the maximum value of the execution offset are both 20 seconds (calculation method 5-2).

For the traffic signal controller 2C, the execution offset in the first cycle is 20 seconds, the cycle length is 120 seconds, the tracking width is -1/8 or +1/8, that is, tracking can be performed at -15 seconds to +15 seconds. Therefore, the central apparatus 1 calculates the minimum value of the execution offset in the second cycle as 5 seconds (= 20 seconds−15 seconds) and the maximum value as 35 seconds (= 20 seconds + 15 seconds) (calculation method 5-1). ).
Alternatively, the central apparatus 1 may calculate the execution offset in the second cycle as follows. That is, the execution offset 20 seconds in the first cycle is 20 seconds less than the target offset 40 seconds included in the signal control command information transmitted to the traffic signal controller 2C in the pre-update cycle, and the traffic signal controller 2C Can follow in the range of -15 seconds to +15 seconds, the central device 1 has the traffic signal controller 2C that has the maximum cycle length from 120 seconds included in the signal control command information as the cycle length in the first cycle. The execution offset in the second cycle is predicted to be executed at 135 seconds extended by 15 seconds, and the execution offset in the second cycle is 35 seconds (= execution offset 20 seconds in the first cycle + 1 execution cycle length 135 seconds in the first cycle−signal control command information) Cycle length 120 seconds). In this case, both the minimum value and the maximum value of the execution offset are set to 35 seconds (calculation method 5-2).

For the traffic signal controller 2D, the execution offset in the first cycle is 30 seconds, the cycle length is 120 seconds, the tracking width is -1/8 or +1/8, that is, tracking can be performed in -15 seconds to +15 seconds. Therefore, the central apparatus 1 calculates the minimum value of the execution offset in the second cycle as 15 seconds (= 30 seconds−15 seconds) and the maximum value as 45 seconds (= 30 seconds + 15 seconds) (calculation method 5-1). ).
Alternatively, the central apparatus 1 may calculate the execution offset in the second cycle as follows. That is, the execution offset 30 seconds in the first cycle is 30 seconds less than the target offset 60 seconds included in the signal control command information transmitted to the traffic signal controller 2D in the pre-update cycle, and the traffic signal controller 2D. Can follow in the range of -15 seconds to +15 seconds. Therefore, the central apparatus 1 determines that the traffic signal controller 2D has the maximum cycle length from 120 seconds included in the signal control command information as the cycle length in the first cycle. The execution offset in the second cycle is predicted to be executed at 135 seconds extended by 15 seconds, and the execution offset in the second cycle is 45 seconds (= execution offset 30 seconds in the first cycle + 1 execution cycle length 135 seconds in the first cycle−signal control command information) Cycle length 120 seconds). In this case, the minimum value and the maximum value of the execution offset are both 45 seconds (calculation method 5-2).

  Next, as in the fourth embodiment, the central apparatus 1 determines the traffic signal controllers 2A, 2B, 2C, and 2D based on the split and cycle length included in the signal control command information that is scheduled to be transmitted in the first cycle. The blue time in the direction of the main road RM is calculated. The central device 1 then determines the minimum and maximum values of the execution offset in the second cycle calculated for each of the traffic signal controllers 2A, 2B, 2C, and 2D, and each of these traffic signal controllers 2A, 2B, 2C, and 2D. Is provided to the information relay apparatus 3 including the cycle length 120 seconds included in the signal control command information scheduled to be transmitted in the first cycle and the calculated blue time in the direction of the main road RM.

  As in the fourth embodiment, the central device 1 first starts the traffic signal controllers 2A, 2B, 2C, 2D 5 seconds before the end of the second cycle of the traffic signal controller 2A (timing ta22 in FIG. 12). For each, the execution offset included in the signal control execution information received in the second cycle, the execution seconds of each step (that is, the execution offset in the first cycle, the execution seconds of each step), and the transmission in the first cycle Based on the cycle length included in the signal control command information (that is, the cycle length in the second cycle), the execution offset in the second cycle is calculated as 0 seconds, 20 seconds, 35 seconds, and 45 seconds, respectively (calculation method 4 -1). Alternatively, the central device 1 is based on the cycle start time included in the signal control execution information received in the second cycle and the execution seconds of each step (that is, the cycle start time in the first cycle and the execution seconds of each step). The cycle start time in the second cycle is calculated, the cycle start time in the second cycle, the cycle length included in the signal control command information transmitted in the first cycle, and the offset reference time (that is, the cycle in the second cycle) The execution offset in the second cycle may be calculated as 0 seconds, 20 seconds, 35 seconds, and 45 seconds, respectively (calculation method 4-2).

Next, the central device 1 determines the following offset obtained from the cycle length and the tracking width included in the signal control command information in the calculated execution offset in the second cycle for each of the traffic signal controllers 2A, 2B, 2C, and 2D. The maximum value of the execution offset in the next cycle (third cycle) is calculated by adding the maximum value of, and the tracking obtained from the cycle length and tracking width included in the signal control command information is added to the execution offset in the second cycle. The minimum value of the execution offset in the third cycle is calculated by adding the minimum value of the width. This is the same as the calculation method 5-1.
Alternatively, the central device 1 determines, for each of the traffic signal controllers 2A, 2B, 2C, and 2D, the calculated execution offset in the second cycle and the cycle length, target offset, and tracking width (included in the signal control command information). That is, the execution cycle length in the second cycle is predicted from the cycle length in the second cycle, the target offset, and the tracking width), the execution cycle length in the second cycle, the execution offset in the second cycle, and the signal control described above. The execution offset in the third cycle may be calculated from the cycle length included in the command information (that is, the cycle length in the second cycle). This is the same as the above calculation method 5-2.
FIG. 23 summarizes the flow of processing in which the central device calculates the execution offset in the third cycle. In FIG. 23, the solid line indicates the flow of the calculation method 4-1, the broken line indicates the flow of the calculation method 4-2, and the dotted line indicates the flow of the calculation method 5-1. The alternate long and short dash line indicates the flow of the calculation method 5-2.

  For the traffic signal controller 2A, the central device 1 sets the signal control parameter so that the execution offset is always 0 seconds, as in the first cycle, so the execution offset in the third cycle is 0 seconds. Predict.

For the traffic signal controller 2B, the execution offset in the second cycle is 20 seconds, the cycle length is 120 seconds, the tracking width is -1/8 or +1/8, that is, tracking can be performed at -15 seconds to +15 seconds. Therefore, the central device 1 calculates the minimum value of the execution offset in the third cycle as 5 seconds (= 20 seconds-15 seconds) and the maximum value as 35 seconds (= 20 seconds + 15 seconds) (calculation method 5-1). ).
Alternatively, the central apparatus 1 may calculate the execution offset in the third cycle as follows. That is, since the execution offset 20 seconds in the second cycle matches the target offset 20 seconds included in the signal control command information transmitted to the traffic signal controller 2B in the first cycle, synchronization is in progress in the second cycle. It is determined that The central device 1 predicts that the traffic signal controller 2B executes the cycle length of 120 seconds included in the signal control command information as the cycle length in the second cycle, and sets the execution offset in the third cycle to 20 seconds (= The execution offset 20 seconds in the second cycle + the execution cycle length 120 seconds in the second cycle−the cycle length 120 seconds included in the signal control command information) is calculated. In this case, the minimum value and the maximum value of the execution offset are both 20 seconds (calculation method 5-2).

For the traffic signal controller 2C, the execution offset in the second cycle is 35 seconds, the cycle length is 120 seconds, the tracking width is -1/8 or +1/8, that is, tracking can be performed at -15 seconds to +15 seconds. Therefore, the central device 1 calculates the minimum value of the execution offset in the third cycle as 20 seconds (= 35 seconds-15 seconds) and the maximum value as 50 seconds (= 35 seconds + 15 seconds) (calculation method 5-1). ).
Alternatively, the central apparatus 1 may calculate the execution offset in the third cycle as follows. That is, the execution offset 35 seconds in the second cycle is 5 seconds less than the target offset 40 seconds included in the signal control command information transmitted to the traffic signal controller 2C in the first cycle, and the traffic signal controller 2C Can follow in the range of -15 seconds to +15 seconds. Therefore, the central apparatus 1 can make the traffic signal controller 2C have a cycle length of 120 seconds to 5 seconds included in the signal control command information as the cycle length in the second cycle. It is predicted that the extended 125 seconds are executed, and the execution offset in the third cycle is 40 seconds (= the execution offset 35 seconds in the second cycle + the execution cycle length 125 seconds in the second cycle−the cycle length 120 seconds included in the signal control command information) ) And calculate. In this case, the minimum value and the maximum value of the execution offset are both 40 seconds (calculation method 5-2).

For the traffic signal controller 2D, the execution offset in the second cycle is 45 seconds, the cycle length is 120 seconds, the tracking width is -1/8 or +1/8, that is, tracking can be performed in -15 seconds to +15 seconds. Therefore, the central apparatus 1 calculates the minimum value of the execution offset in the third cycle as 30 seconds (= 45 seconds-15 seconds) and the maximum value as 60 seconds (= 45 seconds + 15 seconds) (calculation method 5-1). ).
Alternatively, the central apparatus 1 may calculate the execution offset in the third cycle as follows. That is, the execution offset 45 seconds in the second cycle is 15 seconds less than the target offset 60 seconds included in the signal control command information transmitted to the traffic signal controller 2D in the first cycle, and the traffic signal controller 2D. Can follow in the range of -15 seconds to +15 seconds, the central device 1 has the maximum traffic signal controller 2D from the cycle length of 120 seconds included in the signal control command information as the cycle length in the second cycle. The execution offset in the third cycle is predicted to be executed at 135 seconds extended by 15 seconds, and the execution offset in the third cycle is 60 seconds (= the execution offset 45 seconds in the second cycle + the execution cycle length 135 seconds in the second cycle−included in the signal control command information) Cycle length 120 seconds). In this case, the minimum value and the maximum value of the execution offset are both 60 seconds (calculation method 5-2).

  Next, as in the fourth embodiment, the central apparatus 1 determines the traffic signal controllers 2A, 2B, 2C, and 2D based on the split and cycle length included in the signal control command information that is scheduled to be transmitted in the second cycle. The blue time in the direction of the main road RM is calculated. The central device 1 then calculates the minimum and maximum values of the execution offset in the third cycle calculated for each of the traffic signal controllers 2A, 2B, 2C, and 2D, and each of these traffic signal controllers 2A, 2B, 2C, and 2D. Information to be provided is transmitted to the information relay device 3 including the cycle length of 120 seconds included in the signal control command information scheduled to be transmitted in the second cycle and the blue time calculated in the main road RM direction.

  As in the fourth embodiment, the central device 1 first starts the traffic signal controllers 2A, 2B, 2C, 2D 5 seconds before the end of the third cycle of the traffic signal controller 2A (timing ta32 in FIG. 13). For each, the execution offset included in the signal control execution information received in the third cycle, the execution seconds of each step (that is, the execution offset in the second cycle, the execution seconds of each step), and the second cycle transmitted Based on the cycle length included in the signal control command information (that is, the cycle length in the third cycle), the execution offset in the third cycle is calculated as 0 seconds, 20 seconds, 40 seconds, and 60 seconds, respectively (calculation method 4 -1). Alternatively, the central device 1 is based on the cycle start time included in the signal control execution information received in the third cycle and the execution seconds of each step (that is, the cycle start time in the second cycle and the execution seconds of each step). The cycle start time in the third cycle is calculated, the cycle start time in the third cycle, the cycle length included in the signal control command information transmitted in the second cycle, and the offset reference time (that is, the cycle in the third cycle). The execution offset in the third cycle may be calculated as 0 seconds, 20 seconds, 40 seconds, and 60 seconds, respectively (calculation method 4-2).

Next, the central device 1 determines the following offset obtained from the cycle length and the tracking width included in the signal control command information in the calculated execution offset in the third cycle for each of the traffic signal controllers 2A, 2B, 2C, and 2D. The maximum value of the execution offset in the next cycle (fourth cycle) is calculated by adding the maximum value, and the tracking obtained from the cycle length and tracking width included in the signal control command information is added to the execution offset in the third cycle. The minimum value of the execution offset in the fourth cycle is calculated by adding the minimum value of the width. This is the same as the calculation method 5-1.
Alternatively, the central device 1 determines the execution offset in the calculated third cycle and the cycle length, target offset, and tracking width (included in the signal control command information) for each of the traffic signal controllers 2A, 2B, 2C, and 2D. That is, the execution cycle length in the third cycle is predicted from the cycle length in the third cycle, the target offset, the tracking width), the execution cycle length in the third cycle, the execution offset in the third cycle, and the signal control described above. The execution offset in the fourth cycle may be calculated from the cycle length (that is, the cycle length in the third cycle) included in the command information. This is the same as the above calculation method 5-2.

  As for the traffic signal controller 2A, the central device 1 sets the signal control parameter so that the execution offset is always 0 second as in the second cycle, so that the execution offset in the fourth cycle is 0 second. Predict.

For the traffic signal controller 2B, the execution offset in the third cycle is 20 seconds, the cycle length is 120 seconds, the tracking width is -1/8 or +1/8, that is, tracking can be performed in -15 seconds to +15 seconds. Therefore, the central apparatus 1 calculates the minimum value of the execution offset in the fourth cycle as 5 seconds (= 20 seconds−15 seconds) and the maximum value as 35 seconds (= 20 seconds + 15 seconds) (calculation method 5-1). ).
Alternatively, the central apparatus 1 may calculate the execution offset in the fourth cycle as follows. That is, for the traffic signal controller 2B, since the central device 1 is synchronized in the second cycle, the cycle length in the third cycle is also the signal control transmitted to the traffic signal controller 2B in the second cycle. The cycle length 120 seconds included in the command information is predicted to be executed, and the execution offset in the fourth cycle is 20 seconds (= the execution offset 20 seconds in the third cycle + the execution cycle length 120 seconds in the third cycle−included in the signal control command). Cycle length 120 seconds). In this case, the minimum value and the maximum value of the execution offset are both 20 seconds (calculation method 5-2).

For the traffic signal controller 2C, the execution offset in the third cycle is 40 seconds, the cycle length is 120 seconds, the tracking width is -1/8 or +1/8, that is, tracking can be performed at -15 seconds to +15 seconds. Therefore, the central device 1 calculates the minimum value of the execution offset in the fourth cycle as 25 seconds (= 40 seconds−15 seconds) and the maximum value as 55 seconds (= 40 seconds + 15 seconds) (calculation method 5-1). ).
Alternatively, the central apparatus 1 may calculate the execution offset in the fourth cycle as follows. That is, the execution offset of 40 seconds in the third cycle and the target offset of 40 seconds included in the signal control command information transmitted to the traffic signal controller 2C in the second cycle coincide with each other. It is determined that The central device 1 predicts that the traffic signal controller 2C executes the cycle length of 120 seconds included in the signal control command information as the cycle length in the third cycle, and sets the execution offset in the fourth cycle to 40 seconds (= The execution offset is 40 seconds in the third cycle + the execution cycle length is 120 seconds in the third cycle−the cycle length is 120 seconds included in the signal control command information). In this case, the minimum value and the maximum value of the execution offset are both 40 seconds (calculation method 5-2).

For the traffic signal controller 2D, the execution offset in the third cycle is 60 seconds, the cycle length is 120 seconds, and the tracking width is -1/8 or +1/8, that is, tracking can be performed at -15 seconds to +15 seconds. Therefore, the central device 1 calculates the minimum value of the execution offset in the fourth cycle as 45 seconds (= 60 seconds−15 seconds) and the maximum value as 75 seconds (= 60 seconds + 15 seconds) (calculation method 5-1). ).
Alternatively, the central apparatus 1 may calculate the execution offset in the fourth cycle as follows. That is, since the execution offset 60 seconds in the third cycle matches the target offset 60 seconds included in the signal control command information transmitted to the traffic signal controller 2D in the second cycle, synchronization is in progress in the third cycle. It is determined that The central device 1 predicts that the traffic signal controller 2D executes the cycle length of 120 seconds included in the signal control command information as the cycle length in the third cycle, and sets the execution offset in the fourth cycle to 60 seconds (= The execution offset 60 seconds in the third cycle + the execution cycle length 120 seconds in the third cycle−the cycle length 120 seconds included in the signal control command information) is calculated. In this case, the minimum value and the maximum value of the execution offset are both 60 seconds (calculation method 5-2).

  Next, as in the fourth embodiment, the central apparatus 1 determines the traffic signal controllers 2A, 2B, 2C, and 2D based on the split and cycle length included in the signal control command information that is scheduled to be transmitted in the third cycle. The blue time in the direction of the main road RM is calculated. The central device 1 then calculates the minimum and maximum values of the execution offset in the fourth cycle calculated for each of the traffic signal controllers 2A, 2B, 2C, and 2D, and each of these traffic signal controllers 2A, 2B, 2C, and 2D. Is provided to the information relay apparatus 3 including the cycle length 120 seconds included in the signal control command information scheduled to be transmitted in the third cycle and the calculated blue time in the direction of the main road RM.

Next, the operation content of the information relay device 3 in the first to third cycles of the traffic signal controllers 2A to 2D will be described.
The information relay device 3 receives the first-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the first cycle of the traffic signal controller 2A (the timing in FIG. 11). In the provision target intersection signal information, the traffic signal controller 2A has a cycle length of 120 seconds, a main road direction blue time of 65 seconds, and the traffic signal controller 2B has a minimum execution offset of -5 seconds and Maximum value 25 seconds (when the execution cycle length is predicted, both the minimum value and the maximum value are 20 seconds), cycle length 120 seconds, blue time 77 seconds in the main road direction, minimum value 5 of the execution offset for the traffic signal controller 2C Seconds and maximum value 35 seconds (If the execution cycle length is predicted, both minimum and maximum values are 35 seconds), cycle length 120 seconds, main road direction blue time 7 Second, minimum 15 seconds and maximum 45 seconds of execution offset for traffic signal controller 2D (45 seconds when predicting the execution cycle length), cycle length 120 seconds, blue in the main road direction Since the time 77 seconds is included, this information includes the elapsed time -3 seconds from the cycle start time of the second cycle of the traffic signal controller 2A grasped from the reference intersection signal information. Is generated and transmitted to the roadside communication device 4.

  The information relay device 3 receives the second-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the second cycle of the traffic signal controller 2A (the timing in FIG. 12). In the target intersection signal information, the traffic signal controller 2A has a cycle length of 120 seconds, a main road direction blue time of 65 seconds, and the traffic signal controller 2B has a minimum value of 5 seconds and a maximum of an execution offset. 35 seconds (when the execution cycle length is predicted, the minimum value and the maximum value are both 20 seconds), the cycle length is 120 seconds, the green time in the main road direction is 77 seconds, and the minimum value of the execution offset for the traffic signal controller 2C is 20 seconds. And a maximum value of 50 seconds (when the execution cycle length is predicted, both the minimum value and the maximum value are 40 seconds), a cycle length of 120 seconds, a blue time in the direction of the main road 7 Second, minimum 30 seconds and maximum 60 seconds of execution offset for traffic signal controller 2D (if the execution cycle length is predicted, both minimum and maximum values are 60 seconds), cycle length 120 seconds, blue in the main road direction Since the time 77 seconds is included, this information includes the elapsed time -3 seconds from the cycle start time of the third cycle of the traffic signal controller 2A grasped from the reference intersection signal information. Is generated and transmitted to the roadside communication device 4.

The information relay device 3 receives the third-cycle provision target intersection signal information sent from the central device 1 (for example, 3 seconds before the end of the third cycle of the traffic signal controller 2A (the timing in FIG. 13). In the target intersection signal information, the traffic signal controller 2A has a cycle length of 120 seconds, a main road direction green time of 65 seconds, and the traffic signal controller 2B has a minimum execution offset value of 5 seconds and a maximum. 35 seconds (when the execution cycle length is predicted, the minimum value and the maximum value are both 20 seconds), the cycle length is 120 seconds, the blue time in the main road direction is 77 seconds, and the minimum value of the execution offset for the traffic signal controller 2C is 25 seconds. And a maximum value of 55 seconds (when the execution cycle length is predicted, both the minimum value and the maximum value are 40 seconds), a cycle length of 120 seconds, a blue time in the direction of the main road 7 Second, minimum 45 seconds and maximum 75 seconds for the execution offset for the traffic signal controller 2D (when the execution cycle length is predicted, both minimum and maximum values are 60 seconds), cycle length 120 seconds, blue in the main road direction Since the time 77 seconds is included, this information includes the elapsed time -3 seconds from the cycle start time of the fourth cycle of the traffic signal controller 2A grasped from the reference intersection signal information. Is generated and transmitted to the roadside communication device 4.
FIG. 24 shows the contents of the green wave signal information created in the second to fourth cycles thus created. The values in parentheses are numerical values when the above calculation method 4-2 is applied, and the minimum value and the maximum value are the same value.

[Effect of Embodiment 5]
According to the traffic system of the fifth embodiment, regardless of whether or not the traffic signal controllers 2 of each intersection IS constituting the provision target intersection are synchronized in a predetermined first cycle, these traffic signal controllers 2 The green wave signal information relating to the display schedule of the signal light color of these traffic signal controllers 2 in the first cycle, including the execution offset, cycle length, etc. in the first cycle is created.
The in-vehicle device 5 is an execution offset in the first cycle, which is an offset predicted in consideration of following from the offset obtained as a result of the traffic signal controller 2 actually performing signal control, and in the first cycle. From the green time in the traveling direction of the vehicle 6, it is possible to predict the start time and the end time of the green light in the first cycle of each intersection in accordance with the movement of the traffic signal controller 2. The range of travel speed that can pass during the green light can be calculated appropriately.

  In Embodiment 5 described above, the follow-up width in the first cycle is not stored in the green wave signal information. However, the present invention is not limited to this, and the follow-up width in the first cycle is stored. May be.

[6. Embodiment 6]
In the fifth embodiment described above, the provided intersection is configured at a predetermined time before the end of the previous cycle of the predetermined first cycle of the traffic signal controller 2 at the reference intersection at the provided intersection (for example, at least 5 seconds before). For each traffic signal controller 2 at each intersection IS, the cycle length and the tracking width (that is, the cycle in the previous cycle of the first cycle) included in the signal control command information transmitted in the cycle two cycles before the first cycle. In this configuration, the execution offset in the first cycle is predicted in consideration of the length and the tracking width, and the green wave signal information in the first cycle including these is generated. Cycle length and tracking width included in the signal control command information scheduled to be transmitted in the cycle (that is, the first cycle In consideration of the cycle length and the tracking width), the minimum value and the maximum value of the blue time of the first cycle may be calculated, and the green wave signal information in the first cycle including these may be created. .

Hereinafter, the sixth embodiment will be described with a focus on differences from the fifth embodiment.
At a predetermined time (for example, at least 5 seconds or more before the end of the cycle of the traffic signal controller 2 at the reference intersection among the provided intersections), the arithmetic unit 101 of the central device 1 firstly, as in the fifth embodiment, Execution offset, cycle start time, execution time of each step, etc. included in the signal control execution information received most recently (ie, the current cycle) from the traffic signal controller 2 of each intersection IS constituting the provided intersection (ie, The execution offset in the previous cycle of the current cycle, the cycle start time, the number of execution seconds of each floor, etc.), and the signal control command information sent from the central device 1 to these traffic signal controllers 2 most recently (that is, the previous cycle) Cycle length, target offset, offset reference time, tracking width, etc. (that is, cycle length, target offset, offset Set reference time, based on the follow-up width, etc.) and to calculate the minimum and maximum execution offsets in these next cycle of the traffic signal controller 2.

Next, the calculation unit 101 plans to transmit to each of the traffic signal controllers 2 in the current cycle (or has already been transmitted in the current cycle), and from the signal control parameter included in the signal control command information, the blue time in the main road direction Calculate the minimum and maximum values. The minimum value of the green time is the cycle length and tracking width included in the signal control command information in the blue time calculated based on the split and cycle length included in the signal control command information (that is, the split and cycle length in the next cycle). By adding the minimum value of the tracking width obtained from (that is, the cycle length and tracking width in the next cycle), the maximum value of the blue time is the cycle length included in the signal control command information in the calculated blue time and Each can be calculated by adding the maximum value of the following width obtained from the following width. For example, if the blue time calculated based on the split and cycle length is 77 seconds, the cycle length is 120 seconds and the tracking width is -1/8 or +1/8, that is, the tracking time can be -15 seconds to +15 seconds. For example, the minimum value of the blue time can be calculated as 52 seconds (= 77 seconds−120 seconds × 1/8), and the maximum value of the blue time can be calculated as 92 seconds (= 77 seconds + 120 seconds / 8).
Next, the calculation unit 101 includes the minimum value and the maximum value of the execution offset in the calculated next cycle, the cycle length in the next cycle, and the minimum value and the maximum value of the blue time in the main road direction in the calculated next cycle. Signal information is transmitted to the information relay device 3.

The information relay device 3 is a traffic signal controller 2 at the reference intersection (in FIG. 1, the traffic signal controller in FIG. 1) every predetermined time (for example, every second) at a predetermined time (for example, when the provision target intersection signal information is received). Green wave signal information is created based on the reference intersection signal information sent from 2A) and the provision target intersection signal information sent from the central device 1, and transmitted to the roadside communication device 4.
Specifically, the information relay device 3 performs the minimum value and maximum value of the execution offset of each traffic signal controller 2 included in the provided intersection signal information, the cycle length, the minimum value and the maximum value of the green time in the main road direction. Then, green wave signal information in the next cycle is created based on the elapsed time from the cycle start time in the next cycle of the traffic signal controller 2 at the reference intersection grasped from the reference intersection signal information.

  FIG. 25 is a diagram illustrating an example of a format of green wave signal information according to the sixth embodiment. If the number of subordinate intersections included in the provision target intersection is N, the green wave signal information is a predetermined first cycle (the next cycle in the above example) for the traffic signal controller 2 of the reference intersection among the provision target intersections. Cycle length, green time, elapsed time from cycle start time, and minimum and maximum values of execution offset in the first cycle for each of traffic signal controllers 2 at dependent intersections 1 to N, cycle length, blue time Contains information on minimum and maximum values. The minimum value and the maximum value of the green time are calculated in consideration of the cycle length and the tracking width of each of the traffic signal controllers 2 at the dependent intersections 1 to N in the first cycle. It is assumed that the start point of the green light coincides with the start point of the cycle.

[Effect of Embodiment 6]
According to the traffic system of the sixth embodiment, regardless of whether or not the traffic signal controllers 2 of each intersection IS constituting the provision target intersection are synchronized in a predetermined first cycle, these traffic signal controllers 2 Including the minimum and maximum values of the blue time in the main road direction calculated in consideration of the cycle length and the tracking width in the first cycle for the traffic light of the traffic light controller 2 in the first cycle. Create green wave signal information related to the display schedule.
Since the minimum value and the maximum value of the blue hours in the main road direction are calculated based on the cycle length and the tracking width in the first cycle corresponding to each of these traffic signal controllers 2, the in-vehicle device 5 Can predict the start time and end time of the green light at each intersection to a certain degree of accuracy using these pieces of information.
Therefore, the in-vehicle device 5 can appropriately calculate the range of the traveling speed that can pass through the provided intersection during the green light.

[7. Embodiment 7]
In the seventh embodiment, green wave signal information including information related to point sensitive control is further created.
Hereinafter, the seventh embodiment will be described focusing on differences from the fourth embodiment.
The calculation unit 101 of the central device 1 further provides information on the point sensitive control for each traffic signal controller 2 of each intersection IS constituting the provision target intersection, that is, the type of the point sensitive control, the sensitive width, and the sensitive target lamp color. It is included in the provision target intersection signal information and transmitted to the information relay device 3. Here, types of point sensitive control include, for example, gap sensitive control, right turn sensitive control, FAST (emergency vehicle priority control), PTPS (public vehicle priority control), dilemma sensitive control, full sensitivity control, semi-sensitive control, profile. Control etc. are included. Further, the sensitivity width and the sensitivity target lamp color are, for example, from -5 seconds to +15 seconds for the blue time.

The information relay device 3 receives the reference intersection signal sent from the traffic signal controller 2A at the reference intersection at a predetermined time (for example, every second) at a predetermined time (for example, when the provision target intersection signal information is received). Green wave signal information is created based on the information and the target intersection signal information sent from the central device 1 and transmitted to the roadside communication device 4.
Specifically, the information relay device 3 performs the execution offset, cycle length, tracking width, green time in the main road direction, type of point sensitive control, sensitivity width of each traffic signal controller 2 included in the provided intersection signal information. Then, the green wave signal information in the next cycle is created based on the light color to be sensed and the elapsed time from the cycle start time in the next cycle of the traffic signal controller 2 at the reference intersection that is grasped from the reference intersection signal information.

FIG. 26 is a diagram illustrating an example of a format of green wave signal information according to the seventh embodiment. If the number of subordinate intersections included in the provision target intersection is N, the green wave signal information is a predetermined first cycle (the next cycle in the above example) for the traffic signal controller 2 of the reference intersection among the provision target intersections. Cycle length, tracking width, blue time, elapsed time from the start of the cycle, type of point sensitive control, sensitivity width (shortening and extension), sensitive light color, and traffic signal controllers 2 at subordinate intersections 1 to N This includes information on the execution offset, cycle length, follow-up width, blue time, point sensitive control type, sensitive width (shortened and extended), and sensitive light color in the first cycle. It is assumed that the start point of the green light coincides with the start point of the cycle.
If the type of point sensitive control is included in the green wave signal information, for example, in the case of FAST, the sensitivity width (extension) may contain the maximum number of seconds that can be executed. Since the in-vehicle device 5 that has acquired the information can grasp whether or not there is a significant extension, the in-vehicle device 5 is useful.

  When the in-vehicle device 5 receives the green wave signal information in the next cycle from the roadside communication device 4, first, as in the fourth embodiment, first, the cycle length, the green time, and the traffic signal controller 2 at the reference intersection included in this information are included. Based on the elapsed time from the start of the cycle, the sensitivity width (shortening and extension), and the sensitivity target lamp color, the time zone of the green light in the next cycle of the reference intersection is predicted. For example, the cycle length is 120 seconds, the blue time is 65 seconds, the elapsed time from the start of the cycle is -3 seconds, the type of point sensitive control is right turn sensitive control, the sensitive width (shortened) is -5 seconds, and the sensitive width (extended) ) Is +10 seconds and the sensitivity target light color is blue time, the cycle start time of the next cycle is 3 seconds later, and the time zone of the green light is a minimum of 60 seconds (= 65 seconds −5) from the cycle start time. Second) and a maximum of 75 seconds (= 65 seconds + 10 seconds). Therefore, the time zone of the green light in the next cycle of the reference intersection can be predicted to be 3 seconds after the start time and 63 seconds (= 3 seconds + 60 seconds) to 78 seconds (= 3 seconds + 75 seconds) after the end time. it can.

The in-vehicle device 5 also includes the execution offset, cycle length, tracking width, green time, point sensitive control type, sensitive width (shortening and lengthening), sensitive sensitivity of the traffic signal controller 2 at the dependent intersection included in the green wave signal information. Based on the corresponding light color, the time zone of the green light in the next cycle of each dependent intersection is predicted. For example, the execution offset of the dependent intersection 1 is 10 seconds, the cycle length is 120 seconds, the tracking width is -1/8 or +1/8, the blue time is 77 seconds, the type of point sensitive control is right turn sensitive control, sensitive width (shortened) ) Is -5 seconds, the sensitivity width (extension) is +10 seconds, and the light color to be sensed is blue time, the start time of the blue signal at the subordinate intersection 1 is offset from the start time of the blue signal at the reference intersection at the shortest. It is after -2 seconds (= 3 seconds + 10 seconds-120 seconds x 1/8) (that is, 2 seconds before) when the minimum tracking width is added to the time point, and is offset by the offset from the start time of the green signal at the reference intersection at the longest. It can be predicted that 28 seconds (= 3 seconds + 10 seconds + 120 seconds × 1/8) after adding the maximum follow-up width to this point. The end point of the green light is the shortest, 70 seconds after adding the blue time and the sensitivity range (shortening) to the calculated shortest start point (= −2 seconds + 77 seconds−5 seconds). It can be predicted that it is 115 seconds (= 28 seconds + 77 seconds + 10 seconds) after adding the blue time and the sensitivity range (extension) to the calculated longest start point. Therefore, the time zone of the green light in the next cycle of the dependent intersection 1 can be predicted that the start time is from now to 28 seconds and the end time is from 70 seconds to 115 seconds.
The in-vehicle device 5 calculates a range of the optimum traveling speed that can pass through these intersections during the green light by using the predicted time zone of the green light at each of the provided intersections to be provided.

[Effect of Embodiment 7]
According to the traffic system of the seventh embodiment, green wave signal information including information related to point sensitive control is further created.
Since the in-vehicle device 5 can predict the start time and the end time of the green signal at each intersection in consideration of the sensitivity width of the point sensitivity control and the sensitivity corresponding light color included in the green wave signal information, the intersection to be provided It is possible to appropriately calculate the range of travel speed that can pass during the green light.

  In Embodiment 7 described above, the sensitive wave color is stored in the green wave signal information. However, the present invention is not limited to this, and the type of point sensitive control and the sensitive width included in the green wave signal information are not limited thereto. The information of (shortening) and sensitivity width (extended) may be information about the blue time, so that the storage of the sensitivity target lamp color may be omitted.

[8. Embodiment 8]
In the seventh embodiment, the green time signal information includes the sensitivity range of the blue time, the point sensitive control, and the sensitivity target lamp color, and the vehicle-mounted device 5 that receives this information receives the blue time, the sensitivity width, and the sensitivity corresponding lamp color. However, instead of this, the minimum and maximum values of the blue time calculated in consideration of the sensitivity width of the point-sensitive control and the sensitivity target lamp color are used as the green wave signal. The configuration may be such that the in-vehicle device 5 can easily calculate the time zone of the green light, which is included in the information.

Hereinafter, the eighth embodiment will be described focusing on differences from the seventh embodiment.
The calculation unit 101 of the central device 1 has each intersection IS constituting the provision target intersection at a predetermined time (for example, at least 5 seconds before the end of the cycle of the traffic signal controller 2 of the reference intersection of the provision target intersections). For each traffic signal controller 2, each signal lamp obtained from the signal control parameter included in the signal control command information scheduled to be transmitted to each traffic signal controller 2 in the current cycle (or already transmitted in the current cycle). Based on the color time, the sensitivity width (shortening and extension) of the point sensitive control, and the sensitivity corresponding light color, the minimum value and the maximum value of the blue time in the main road direction in the next cycle are calculated. When the sensitivity corresponding light color is blue time, the minimum value of blue time is the sensitivity width in the blue time calculated based on the split and cycle length included in the signal control command information (that is, the split and cycle length in the next cycle). By adding (shortening), the maximum value of the blue time can be calculated by adding a sensitivity width (extension) to the calculated blue time. For example, if the blue time calculated based on the split and the cycle length is 77 seconds, the sensitivity width (shortening) is -5 seconds, and the sensitivity width (extension) is +10 seconds, the minimum value of the blue time is 72 seconds (= 77 seconds-5 seconds), and the maximum blue time can be calculated as 87 seconds (= 77 seconds + 10 seconds).
And the calculation part 101 replaced with the blue time of the provision object intersection signal information of Embodiment 7, the kind of point sensitive control, the sensitive width (shortening) and the sensitive width (extension), and calculated above instead of the sensitive target lamp color. The provided intersection signal information including the minimum value and the maximum value of the green time is transmitted to the information relay device 3.

The information relay device 3 receives the reference intersection signal sent from the traffic signal controller 2A at the reference intersection at a predetermined time (for example, every second) at a predetermined time (for example, when the provision target intersection signal information is received). Green wave signal information is created based on the information and the target intersection signal information sent from the central device 1 and transmitted to the roadside communication device 4.
Specifically, the information relay device 3 determines the execution offset, the cycle length, the tracking width, the minimum and maximum values of the green time in the main road direction, the reference intersection, and the traffic signal controller 2 included in the provided intersection signal information. The green wave signal information in the next cycle is created based on the elapsed time from the cycle start time in the next cycle of the traffic signal controller 2 at the reference intersection grasped from the signal information.

  FIG. 27 is a diagram illustrating an example of a format of green wave signal information in the eighth embodiment. If the number of subordinate intersections included in the provision target intersection is N, the green wave signal information is a predetermined first cycle (the next cycle in the above example) for the traffic signal controller 2 of the reference intersection among the provision target intersections. Cycle length, following width, minimum and maximum values of green time, elapsed time from the start of the cycle, execution offset in the first cycle for each of the traffic signal controllers 2 at the dependent intersections 1 to N, cycle length, Includes tracking width, minimum and maximum values for green hours. The minimum value and maximum value of the green time are calculated in consideration of the sensitivity width (shortening and extension) of each point sensitive control of the traffic signal controller 2 at the reference intersection and the dependent intersections 1 to N in the first cycle. It is. It is assumed that the start point of the green light coincides with the start point of the cycle.

  When the in-vehicle device 5 receives the green wave signal information in the next cycle from the roadside communication device 4, first, as in the seventh embodiment, the cycle length of the traffic signal controller 2 at the reference intersection included in this information and the green time Based on the minimum and maximum values and the elapsed time from the cycle start time, the time zone of the green light in the next cycle of the reference intersection is predicted. For example, if the cycle length is 120 seconds, the minimum blue time is 60 seconds, the maximum blue time is 75 seconds, and the elapsed time from the cycle start time is -3 seconds, the cycle start time of the next cycle is 3 seconds. Later, it can be determined that the time zone of the green light is a minimum of 60 seconds and a maximum of 75 seconds from the start of the cycle. Therefore, the time zone of the green light in the next cycle of the reference intersection can be predicted to be 3 seconds after the start time and 63 seconds (= 3 seconds + 60 seconds) to 78 seconds (= 3 seconds + 75 seconds) after the end time. it can.

The in-vehicle device 5 also determines the next of each subordinate intersection based on the execution offset, cycle length, tracking width, and minimum and maximum values of the green time of the subordinate intersection traffic signal controller 2 included in the green wave signal information. Predict the time of the green light in the cycle. For example, if the execution offset of the dependent intersection 1 is 10 seconds, the cycle length is 120 seconds, the tracking width is −1/8 or +1/8, the minimum value of the blue time is 72 seconds, and the maximum value of the blue time is 87 seconds The starting time of the green signal at the subordinate intersection 1 is -2 seconds (= 3 seconds + 10 seconds-120 seconds × 1/8) obtained by adding the minimum tracking width to the time point offset by an offset from the starting time of the green signal at the reference intersection at the shortest. ) After (that is, 2 seconds before), the maximum follow-up width is added to the point when the maximum offset time is offset from the start point of the green light at the reference intersection (= 3 seconds + 10 seconds + 120 seconds x 1/8) Can be predicted later. The end point of the green light is the shortest, 70 seconds (= −2 seconds + 72 seconds) after adding the minimum value of the blue time to the calculated shortest start time, and the longest is the longest calculated start time. It can be predicted that it is 115 seconds (= 28 seconds + 87 seconds) after adding the maximum value of the blue time. Therefore, the time zone of the green light in the next cycle of the dependent intersection 1 can be predicted that the start time is from now to 28 seconds and the end time is from 70 seconds to 115 seconds.
The in-vehicle device 5 calculates a range of the optimum traveling speed that can pass through these intersections during the green light by using the predicted time zone of the green light at each of the provided intersections to be provided.

[Effect of Embodiment 8]
According to the traffic system of the eighth embodiment, the green wave signal information including the minimum value and the maximum value of the blue time considering the sensitivity width of the point sensitive control and the sensitivity target lamp color is created.
The in-vehicle device 5 can predict the start point and the end point of the green signal at each intersection with a small amount of calculation based on the minimum value and the maximum value of the green time included in the green wave signal information.

[9. Embodiment 9]
In a cycle in which point sensitive control is executed, the cycle length is shortened or extended by the sensitivity fluctuation value (time shortened or extended by point sensitive control), and the offset of the next cycle is disturbed. Absorbs the fluctuation of offset value by absorbing the extension or shortening of the fluctuation value. For example, if the sensitivity fluctuation value is +7 seconds (extension of 7 seconds) in the cycle in which point sensitive control is executed, one of the floors is reduced by 7 seconds in the next cycle, or a plurality of floors are added up. Reduced by 7 seconds. This is called sensitivity correction.
In the ninth embodiment, the minimum value and the maximum value of the execution offset and the minimum value and the maximum value of the blue time are calculated in consideration of the sensitivity correction in the point sensitivity control, and green wave signal information including these is generated.

Hereinafter, the ninth embodiment will be described with a focus on differences from the eighth embodiment.
At a predetermined time (for example, at least 5 seconds before the end of the cycle of the traffic signal controller 2 at the reference intersection among the provided intersections), the arithmetic unit 101 of the central device 1 first, as in the fourth embodiment, The execution offset, the cycle start time, the number of execution seconds of each step included in the signal control execution information received most recently (that is, the current cycle) from the traffic signal controller 2 of each intersection IS constituting the provision target intersection, and these Based on the cycle length and the offset reference time included in the signal control command information that the central device 1 has most recently transmitted to the traffic signal controller 2 (that is, the previous cycle of the current cycle), the traffic signal controllers 2 Calculate the execution offset in the current cycle.

  Next, the calculation unit 101 calculates the execution offset in the current cycle calculated for these traffic signal controllers 2 and the sensitive fluctuation value (shortened or extended) of the point sensitive control included in the signal control execution information (that is, the previous cycle). The minimum value and the maximum value of the execution offset in the next cycle are calculated on the basis of the sensitivity fluctuation value of the point sensitivity control in (1) and the sensitivity width (shortening and extension) of the point sensitivity control. By taking the sensitivity correction into consideration, the minimum value of the execution offset in the next cycle is calculated by subtracting the sensitivity fluctuation value (shortening or extension) from the calculated execution offset in the current cycle, and adding the sensitivity width (shortening) to the next cycle. The maximum value of the execution offset can be calculated by subtracting the sensitivity fluctuation value (shortening or extension) from the calculated execution offset in the current cycle and further adding the sensitivity width (extension).

  For example, when the execution offset in the current cycle is 17 seconds, the actual sensitivity fluctuation value is +7 seconds (extension of 7 seconds), the sensitivity width (shortening) is -5 seconds, and the sensitivity width (extension) is +10 seconds. The minimum value of the execution offset in the next cycle can be calculated as 5 seconds (= 17 seconds−7 seconds−5 seconds), and the maximum value can be calculated as 25 seconds (= 17 seconds−7 seconds + 15 seconds). Also, for example, the execution offset in the current cycle is 7 seconds, the actual sensitivity fluctuation value is -3 seconds (3 seconds shortened), the sensitivity width (shortened) is -5 seconds, and the sensitivity width (extended) is +10 seconds. In this case, the minimum value of the execution offset in the next cycle can be calculated as 5 seconds (= 7 seconds + 3 seconds−5 seconds), and the maximum value can be calculated as 25 seconds (= 7 seconds + 3 seconds + 15 seconds).

Next, the calculation unit 101 plans to transmit these traffic signal controllers 2 to each of the traffic signal controllers 2 in the current cycle (or already included in the signal control command information already transmitted in the current cycle). Sensitivity used to calculate the minimum and maximum values of the execution offset in the next cycle, the time of each signal lamp color obtained from the control parameters, the sensitivity width (extension and shortening) of the point sensitive control, the sensitivity corresponding lamp color Based on the width (shortening and shortening), the minimum value and the maximum value of the blue time in the main road direction in the next cycle are calculated. When the sensitivity corresponding light color is blue time, the minimum value of blue time is the sensitivity width in the blue time calculated based on the split and cycle length included in the signal control command information (that is, the split and cycle length in the next cycle). It can be calculated by adding (shortening) and subtracting the sensitivity width (extension) used when calculating the maximum value of the execution offset in the next cycle in consideration of sensitivity correction. The maximum value of the blue hour is the sensitivity used when calculating the minimum value of the execution offset in the next cycle by adding the sensitivity width (extension) to the above calculated blue time and further considering the sensitivity correction. It can be calculated by reducing the width (shortening). For example, if the blue time calculated based on the split and the cycle length is 77 seconds, the sensitivity width (shortening) is -5 seconds, and the sensitivity width (extension) is +10 seconds, the minimum value of the blue time is 62 seconds (= 77 seconds-5 seconds-10 seconds), and the maximum blue time can be calculated as 92 seconds (= 77 seconds + 10 seconds + 5 seconds).
Then, the calculation unit 101 calculates the minimum value and maximum value of the execution offset in the next cycle, the cycle length in the next cycle, the tracking width in the next cycle, the minimum value and maximum value of the blue time in the main road direction in the calculated next cycle. To be provided to the information relay device 3.

The information relay device 3 receives the reference intersection signal sent from the traffic signal controller 2A at the reference intersection at a predetermined time (for example, every second) at a predetermined time (for example, when the provision target intersection signal information is received). Green wave signal information is created based on the information and the target intersection signal information sent from the central device 1 and transmitted to the roadside communication device 4.
Specifically, the information relay device 3 includes the minimum value and the maximum value of the execution offset of each traffic signal controller 2 included in the provided intersection signal information, the cycle length, the tracking width, the minimum value and the maximum value of the green time, Green wave signal information in the next cycle is created based on the elapsed time from the cycle start time in the next cycle of the traffic signal controller 2 at the reference intersection, which is grasped from the reference intersection signal information.

  FIG. 28 is a diagram illustrating an example of a format of green wave signal information according to the ninth embodiment. If the number of subordinate intersections included in the provision target intersection is N, the green wave signal information is a predetermined first cycle (the next cycle in the above example) for the traffic signal controller 2 of the reference intersection among the provision target intersections. Cycle length, tracking width, minimum and maximum values of green time, elapsed time from the start of the cycle, and minimum value of execution offset in the first cycle for each of the traffic signal controllers 2 at the dependent intersections 1 to N Includes maximum value, cycle length, tracking width, minimum and maximum values of green time. The minimum value and the maximum value of the execution offset are the sensitivity fluctuation value of the point sensitive control in the previous cycle of the first cycle of each of the traffic signal controllers 2 of the dependent intersections 1 to N, and the sensitivity width (shortening and Calculated based on the sensitivity correction in the point sensitive control. In addition, the minimum and maximum values of the blue hours are based on the point sensitivity control widths (shortening and extension) of the traffic signal controllers 2 at the reference intersection and the dependent intersections 1 to N in the first cycle. This is calculated in consideration of the sensitivity correction in the control. It is assumed that the start point of the green light coincides with the start point of the cycle.

  When the in-vehicle device 5 receives the green wave signal information in the next cycle from the roadside communication device 4, first, as in the eighth embodiment, the cycle length of the traffic signal controller 2 at the reference intersection included in this information, and the blue time Based on the minimum and maximum values and the elapsed time from the cycle start time, the time zone of the green light in the next cycle of the reference intersection is predicted. For example, if the cycle length is 120 seconds, the minimum blue time is 60 seconds, the maximum blue time is 75 seconds, and the elapsed time from the cycle start time is -3 seconds, the cycle start time of the next cycle is 3 seconds. Later, it can be determined that the time zone of the green light is a minimum of 60 seconds and a maximum of 75 seconds from the start of the cycle. Therefore, the time zone of the green light in the next cycle of the reference intersection can be predicted to be 3 seconds after the start time and 63 seconds (= 3 seconds + 60 seconds) to 78 seconds (= 3 seconds + 75 seconds) after the end time. it can.

Further, the in-vehicle device 5 is based on the minimum value and the maximum value of the execution offset of the traffic signal controller 2 at the dependent intersection included in the green wave signal information, the cycle length, the tracking width, the minimum value and the maximum value of the green time. The time zone of the green light in the next cycle of each dependent intersection is predicted. For example, the minimum value of the execution offset of the dependent intersection 1 is 5 seconds, the maximum value of the execution offset is 25 seconds, the cycle length is 120 seconds, the tracking width is −1/8 or +1/8, and the minimum value of the blue time is 62 seconds. If the maximum value of the green time is 92 seconds, the minimum follow-up width is added to the time when the start time of the blue signal at the subordinate intersection 1 is the shortest at the start offset time of the green signal at the reference intersection. The maximum follow-up width after −7 seconds (= 3 seconds + 5 seconds−120 seconds / 8) (that is, 7 seconds before) and the maximum deviation of the execution offset from the start point of the green light at the reference intersection 43 seconds after adding (= 3 seconds + 25 seconds + 120 seconds / 8). The end point of the green signal is the shortest, 55 seconds (= −7 seconds + 62 seconds) after adding the minimum value of the blue time to the calculated shortest start time, and the longest is the longest calculated start time. It can be predicted that 135 seconds (= 43 seconds + 92 seconds) after adding the maximum value of the blue time. Therefore, the time zone of the green light in the next cycle of the dependent intersection 1 can be predicted to be the start time after 43 seconds and the end time after 55 seconds to 135 seconds.
The in-vehicle device 5 calculates a range of the optimum traveling speed that can pass through these intersections during the green light by using the predicted time zone of the green light at each of the provided intersections to be provided.

[Effect of Embodiment 9]
According to the traffic system of the ninth embodiment, the minimum value and the maximum value of the execution offset, the minimum value and the maximum value of the blue time are calculated in consideration of the sensitivity correction in the point sensitivity control, and the green wave signal information including these is calculated. Create
The in-vehicle device 5 includes the minimum value and maximum value of the execution offset, the cycle length, the tracking width, and the minimum value of the blue time for the traffic signal controller 2 of each intersection IS that constitutes the provided intersection. Based on the maximum value, etc., it is possible to more accurately predict the start time and end time of the green light at each intersection, so the range of travel speeds that can pass through the provided intersection during the green light is calculated appropriately. can do.

[10. Embodiment 10]
Embodiment 9 described above may be combined with Embodiment 5 described above. In other words, considering both the tracking and sensitivity correction in point sensitive control, the minimum and maximum values of the execution offset and the minimum and maximum values of the blue time are calculated, and green wave signal information including these is created. Also good.

Hereinafter, the tenth embodiment will be described focusing on differences from the ninth embodiment.
At a predetermined time (for example, at least 5 seconds before the end of the cycle of the traffic signal controller 2 at the reference intersection among the provided intersections), the arithmetic unit 101 of the central device 1 first, as in the fourth embodiment, The execution offset, the cycle start time, the number of execution seconds of each step included in the signal control execution information received most recently (that is, the current cycle) from the traffic signal controller 2 of each intersection IS constituting the provision target intersection, and these Based on the cycle length and the offset reference time included in the signal control command information that the central device 1 has most recently transmitted to the traffic signal controller 2 (that is, the previous cycle of the current cycle), the traffic signal controllers 2 Calculate the execution offset in the current cycle.

  Next, the calculation unit 101 calculates the execution offset in the current cycle and the cycle length and tracking width included in the signal control command information (that is, the cycle length and tracking width in the current cycle) for these traffic signal controllers 2. And the sensitivity fluctuation value (shortening or extension) of the point sensitive control included in the signal control execution information (that is, the sensitivity fluctuation value of the point sensitive control in the previous cycle), and the sensitivity width (shortening and extension) of the point sensitive control. Based on the above, the minimum value and the maximum value of the execution offset in the next cycle are calculated. By considering the tracking and sensitivity correction, the minimum value of the execution offset in the next cycle is obtained by subtracting the sensitivity fluctuation value (shortened or extended) from the calculated execution offset in the current cycle, and further the sensitivity width (shortened) and the above cycle length. By adding the minimum value of the following width obtained from the following width, the maximum value of the execution offset in the next cycle is obtained by subtracting the sensitivity fluctuation value (shortened or extended) from the calculated execution offset in the current cycle, and further the sensitivity width (extended) And the maximum value of the tracking width obtained from the cycle length and the tracking width can be calculated.

  For example, the execution offset in the current cycle is 17 seconds, the cycle length is 120 seconds, the tracking width is −1/8 or +1/8, the actually performed sensitivity fluctuation value is +7 seconds (extension of 7 seconds), the sensitivity width ( When the (shortening) is -5 seconds and the sensitivity width (extended) is +10 seconds, the minimum value of the execution offset in the next cycle is -10 seconds (= 17 seconds-7 seconds-5 seconds-120 seconds × 1/8), the maximum The value can be calculated as 40 seconds (= 17 seconds−7 seconds + 15 seconds + 120 seconds × 1/8). Also, for example, the execution offset in the current cycle is 7 seconds, the cycle length is 120 seconds, the follow-up width is -1/8 or +1/8, the actual sensitivity fluctuation value is -3 seconds (3 seconds reduction), When the sensitivity width (shortening) is -5 seconds and the sensitivity width (extension) is +10 seconds, the minimum value of the execution offset in the next cycle is -10 seconds (= 7 seconds + 3 seconds-5 seconds-120 seconds × 1/8) The maximum value can be calculated as 40 seconds (= 7 seconds + 3 seconds + 15 seconds + 120 seconds × 1/8).

  Alternatively, the calculation unit 101 may calculate the execution offset in the next cycle as follows. That is, the cycle length to be executed in the current cycle from the execution offset in the current cycle and the cycle length, target offset, and tracking width included in the signal control command information (that is, cycle length, target offset, tracking width in the current cycle) The execution offset in the next cycle is calculated from the execution cycle length in the current cycle, the execution offset in the current cycle, and the cycle length included in the signal control command information (that is, the cycle length in the current cycle). . Further, by considering sensitivity correction, the minimum value of the execution offset in the next cycle is obtained by subtracting the sensitivity fluctuation value (shortening or extension) from the calculated execution offset in the next cycle, and adding the sensitivity width (shortening). The maximum value of the execution offset in the next cycle can be calculated by subtracting the sensitivity fluctuation value (shortening or extension) from the calculated execution offset in the next cycle and further adding the sensitivity width (extension).

Next, the calculation unit 101 plans to transmit these traffic signal controllers 2 to each of the traffic signal controllers 2 in the current cycle (or has already been transmitted in the current cycle), as in the ninth embodiment. The time of each signal lamp color obtained from the signal control parameters included in the signal control command information, the sensitivity width (extension and shortening) of the point sensitive control, the sensitivity corresponding lamp color, and the minimum and maximum values of the execution offset in the next cycle Based on the sensitivity width (shortening and shortening) used in the calculation, the minimum value and the maximum value of the blue time in the main road direction in the next cycle are calculated. When the sensitivity corresponding light color is blue time, the minimum value of blue time is the sensitivity width in the blue time calculated based on the split and cycle length included in the signal control command information (that is, the split and cycle length in the next cycle). It can be calculated by adding (shortening) and subtracting the sensitivity width (extension) used when calculating the maximum value of the execution offset in the next cycle in consideration of sensitivity correction. In addition, the maximum value of the blue time is obtained by adding the sensitivity width (extension) to the calculated blue time, and further considering the sensitivity correction, the sensitivity width used when calculating the minimum value of the execution offset in the next cycle ( It can be calculated by subtracting (shortening). For example, if the blue time calculated based on the split and the cycle length is 77 seconds, the sensitivity width (shortening) is -5 seconds, and the sensitivity width (extension) is +10 seconds, the minimum value of the blue time is 62 seconds (= 77 seconds-5 seconds-10 seconds), and the maximum blue time can be calculated as 92 seconds (= 77 seconds + 10 seconds + 5 seconds).
Then, the calculation unit 101 calculates the minimum and maximum values of the execution offset in the calculated next cycle, the calculated minimum and maximum values of the blue time in the main road direction in the next cycle, and the traffic signal controller 2 at the reference intersection in the next cycle. The target intersection signal information including the cycle length is transmitted to the information relay device 3.

The information relay device 3 receives the reference intersection signal sent from the traffic signal controller 2A at the reference intersection at a predetermined time (for example, every second) at a predetermined time (for example, when the provision target intersection signal information is received). Green wave signal information is created based on the information and the target intersection signal information sent from the central device 1 and transmitted to the roadside communication device 4.
Specifically, the information relay device 3 includes the minimum value and the maximum value of the execution offset of each traffic signal controller 2 included in the provided intersection signal information, the minimum value and the maximum value of the green time in the main road direction, the reference intersection The green wave signal information in the next cycle is based on the cycle length of the traffic signal controller 2 and the elapsed time from the cycle start time in the next cycle of the traffic signal controller 2 at the reference intersection which is grasped from the reference intersection signal information. create.

  FIG. 29 is a diagram illustrating an example of a format of green wave signal information according to the tenth embodiment. If the number of subordinate intersections included in the provision target intersection is N, the green wave signal information is a predetermined first cycle (the next cycle in the above example) for the traffic signal controller 2 of the reference intersection among the provision target intersections. , The minimum and maximum values of the green time, the elapsed time from the start of the cycle, and the minimum and maximum values of the execution offset in the first cycle for each of the traffic signal controllers 2 at the dependent intersections 1 to N, Includes minimum and maximum values for green hours. The minimum value and the maximum value of the execution offset are the cycle length and tracking width in the first cycle of each of the traffic signal controllers 2 at the dependent intersections 1 to N, and the sensitivity of the point sensitive control in the previous cycle of the first cycle. Based on the fluctuation value and the sensitivity width (shortening and extension) of the point sensitive control, it is calculated in consideration of the follow-up and the sensitive correction in the point sensitive control. In addition, the minimum and maximum values of the blue hours are based on the point sensitivity control widths (shortening and extension) of the traffic signal controllers 2 at the reference intersection and the dependent intersections 1 to N in the first cycle. This is calculated in consideration of the sensitivity correction in the control. It is assumed that the start point of the green light coincides with the start point of the cycle.

  When the in-vehicle device 5 receives the green wave signal information in the next cycle from the roadside communication device 4, first, as in the ninth embodiment, the cycle length of the traffic signal controller 2 at the reference intersection included in this information and the green time Based on the minimum and maximum values and the elapsed time from the cycle start time, the time zone of the green light in the next cycle of the reference intersection is predicted. For example, if the cycle length is 120 seconds, the minimum blue time is 60 seconds, the maximum blue time is 75 seconds, and the elapsed time from the cycle start time is -3 seconds, the cycle start time of the next cycle is 3 seconds. Later, it can be determined that the time zone of the green light is a minimum of 60 seconds and a maximum of 75 seconds from the start of the cycle. Therefore, the time zone of the green light in the next cycle of the reference intersection can be predicted to be 3 seconds after the start time and 63 seconds (= 3 seconds + 60 seconds) to 78 seconds (= 3 seconds + 75 seconds) after the end time. it can.

The in-vehicle device 5 also determines the next of each dependent intersection based on the minimum and maximum execution offsets and the minimum and maximum values of the green time of the traffic signal controller 2 at the dependent intersection included in the green wave signal information. Predict the time of the green light in the cycle. For example, if the minimum value of the execution offset of the dependent intersection 1 is -10 seconds, the maximum value of the execution offset is 40 seconds, the minimum value of the blue time is 62 seconds, and the maximum value of the blue time is 92 seconds, the dependent intersection 1 The start time of the green light is -7 seconds (= 3 seconds-10 seconds) after the minimum value of the execution offset from the start time of the green light at the reference intersection at the shortest (that is, 7 seconds before), and the reference intersection at the longest. It can be determined that 43 seconds (= 3 seconds + 40 seconds) later than the maximum value of the execution offset from the start point of the green light. The end point of the green signal is the shortest, 55 seconds (= −7 seconds + 62 seconds) after adding the minimum value of the blue time to the calculated shortest start time, and the longest is the longest calculated start time. It can be predicted that 135 seconds (= 43 seconds + 92 seconds) after adding the maximum value of the blue time. Therefore, the time zone of the green light in the next cycle of the dependent intersection 1 can be predicted to be the start time after 43 seconds and the end time after 55 seconds to 135 seconds.
The in-vehicle device 5 calculates a range of the optimum traveling speed that can pass through these intersections during the green light by using the predicted time zone of the green light at each of the provided intersections to be provided.

[Effect of Embodiment 10]
According to the traffic system of the tenth embodiment, the minimum value and the maximum value of the execution offset and the minimum value and the maximum value of the blue time are calculated in consideration of the sensitivity correction in the tracking and the point sensitivity control, and the green wave including these is calculated. Create signal information.
The in-vehicle device 5 is based on the minimum value and the maximum value of the execution offset, the minimum value and the maximum value of the green time, etc. of the traffic signal controller 2 of each intersection IS that constitutes the provided intersection, which is included in this green wave signal information. Thus, since the start point and the end point of the green light at each intersection in accordance with the movement of these traffic signal controllers 2 can be predicted more precisely and with a small amount of computation, the target intersection is determined between the green signals. It is possible to appropriately calculate the range of travel speed that can pass through.

[11. Embodiment 11]
The green wave signal information of the above-described embodiment 10 includes the cycle length, the minimum and maximum values of the green time, and the cycle start time for the traffic signal controller 2 at the reference intersection among the provided intersections. The minimum and maximum values of the execution offset in the first cycle and the minimum and maximum values of the green time for each of the traffic signal controllers 2 at the dependent intersections. Therefore, the in-vehicle device 5 needs to obtain the time zone of the green signal in the first cycle of each intersection included in the provided intersection.
Therefore, in the eleventh embodiment, the in-vehicle device 5 does not have to calculate the time zone of the green light in the first cycle of each intersection included in the provision target intersection, and the first of each intersection included in the provision target intersection. Green wave signal information including the shortest and longest start points of the blue signal and the shortest and longest end points of the blue signal in the cycle is created.

Hereinafter, the eleventh embodiment will be described focusing on the differences from the tenth embodiment.
The arithmetic unit 101 of the central device 1 performs tracking and tracking at a predetermined time (for example, at least 5 seconds or more before the end of the cycle of the traffic signal controller 2 at the reference intersection of the provided intersections), as in the tenth embodiment. Considering the sensitivity correction in the point sensitive control, the minimum and maximum values of the execution offset in the next cycle, the minimum value of the blue time in the main road direction, and the traffic signal controller 2 of each intersection IS constituting the provided intersection The maximum value is calculated, and the provision target intersection signal information including these and the cycle length of the traffic signal controller 2 at the reference intersection is transmitted to the information relay device 3.

  The information relay device 3 receives the reference intersection signal sent from the traffic signal controller 2A at the reference intersection at a predetermined time (for example, every second) at a predetermined time (for example, when the provision target intersection signal information is received). Green wave signal information is created based on the information and the target intersection signal information sent from the central device 1 and transmitted to the roadside communication device 4.

  Specifically, the information relay device 3 firstly includes the cycle length of the traffic signal controller 2 at the reference intersection included in the provided intersection signal information, the minimum and maximum values of the green time in the main road direction, and reference intersection signal information. Based on the elapsed time from the cycle start time of the reference intersection that is grasped from the above, the shortest and longest of the start time of the green signal and the end time of the green signal in the next cycle of the reference intersection are calculated. For example, if the cycle length is 120 seconds, the minimum blue time is 60 seconds, the maximum blue time is 75 seconds, and the elapsed time from the cycle start time is -3 seconds, the cycle start time of the next cycle is 3 seconds. Later, it can be determined that the time zone of the green light is a minimum of 60 seconds and a maximum of 75 seconds from the start of the cycle. Therefore, the start point of the green light in the next cycle of the reference intersection is 3 seconds later, the shortest end time of the green light is 63 seconds (= 3 seconds + 60 seconds), and the longest end time of the green light is 78 seconds (= 3 seconds + 75 seconds). ) Can be calculated later.

  Next, the information relay device 3 determines the starting point of the green light in the next cycle of the calculated reference intersection, the minimum and maximum values of the execution offset of the traffic signal controller 2 of the dependent intersection included in the provision target intersection signal information, the main road direction Based on the minimum and maximum values of the green time, the shortest and longest start point of the green light and the shortest and longest end point of the green light are calculated in the next cycle of the dependent intersection. For example, the start point of the green light in the next cycle of the calculated reference intersection is 3 seconds later, and the execution offset minimum value is −10 seconds, the execution offset maximum value is 40 seconds for one dependent intersection of the provided intersections, If the minimum value of the green time is 62 seconds and the maximum value of the blue time is 92 seconds, the shortest start time of the green signal in the next cycle of the subordinate intersection is shifted by the minimum value of the execution offset from the start time of the green signal at the reference intersection. After -7 seconds (= 3 seconds-10 seconds) (that is, 7 seconds before), the longest start time of the green light is 43 seconds (= 3 seconds) shifted by the maximum value of the execution offset from the start time of the green light at the reference intersection. +40 seconds). Also, the shortest green signal end time in the next cycle of the dependent intersection is the longest green signal end time 55 seconds (= −7 seconds + 62 seconds) after adding the minimum blue time to the shortest start time of the green signal. Can be calculated as 135 seconds (= 43 seconds + 92 seconds) after adding the maximum value of the blue time to the longest starting point of the blue light.

  FIG. 30 is a diagram illustrating an example of a format of green wave signal information according to the eleventh embodiment. When the number of dependent intersections included in the provision target intersection is N, the green wave signal information is a predetermined first cycle (the next cycle in the above example) for the traffic signal controller 2 of the reference intersection among the provision target intersections. The green signal start time, the shortest green signal end time, the longest green signal end time, the shortest green signal start time in the first cycle for each of the traffic signal controllers 2 at the dependent intersections 1 to N, and the blue signal start It includes the longest time point, the shortest green signal end point, and the longest green signal end point. These shortest and longest start points of the green signal and the shortest and longest end points of the green signal are calculated in consideration of the follow-up and the sensitivity correction in the point sensitive control. It is assumed that the start point of the green light coincides with the start point of the cycle.

  When the in-vehicle device 5 receives the green wave signal information from the roadside communication device 4, the start time of the green signal and the end time of the green signal in the next cycle for the traffic signal controller 2 at the reference intersection of the provided intersections included therein The shortest of the green light, the longest time of the green light, the shortest start time of the green light in the next cycle for each traffic signal controller 2 at the subordinate intersection, the longest of the start time of the green light, the shortest of the end time of the green light, the end time of the green light From the longest, it is possible to easily calculate the optimum travel speed range that can pass through these intersections during the green light.

[Effect of Embodiment 11]
According to the traffic system of the eleventh embodiment, green wave signal information including the shortest and longest start point of the green signal and the shortest and longest end point of the green signal in a predetermined first cycle of each intersection included in the provision target intersection is created. To do.
The in-vehicle device 5 can directly grasp the time zone of the blue signal from the shortest and longest start point of the blue signal and the shortest and longest end point of the blue signal in the first cycle of each intersection included in the green wave signal information. Therefore, it is possible to easily calculate the range of travel speed that can pass through these intersections with a green light.

[12. Embodiment 12]
In the above-described embodiment, for the sake of simplicity, the execution offset is set to 0 seconds for the traffic signal controller 2 at the reference intersection at the supply target intersection, but the execution offset may actually take a value other than 0 seconds. Therefore, in the twelfth embodiment, in the green wave signal information, execution offset information is also set for the traffic signal controller 2 at the reference intersection. In this case, in the green wave signal information, the execution offset of the traffic signal controller 2 at each intersection IS of the dependent intersection included in the provided intersection is a value obtained by adding the value of the execution offset of the traffic signal controller 2 at the reference intersection. What should I do?

  In the fifth embodiment, the central device 1 calculates an execution offset in the current cycle before a predetermined time (for example, at least 5 seconds or more) before the end of the cycle of the traffic signal controller 2 at the reference intersection. Next, based on this execution offset and the cycle length, target offset, and tracking width (that is, cycle length, target offset, tracking width in the current cycle) included in the signal control command information transmitted in the previous cycle of the current cycle The cycle length to be executed in the current cycle is predicted, and from the execution cycle length in the current cycle, the execution offset in the current cycle, and the cycle length (that is, the cycle length in the current cycle) included in the signal control command information. The configuration for calculating the execution offset of the next cycle (calculation method 5-2) is included. And although, in this embodiment 12, instead of the execution cycle length in the current cycle as described above predictions, using the expected cycle length included in the signal control execution information, calculates the execution offset in the next cycle. That is, the execution offset in the next cycle can be calculated by adding the scheduled cycle length to the execution offset in the current cycle and subtracting the cycle length included in the signal control command information (calculation method 12).

FIG. 31 summarizes the flow of processing in which the central apparatus calculates the execution offset in the second cycle in the twelfth embodiment.
In FIG. 31, the solid line indicates the flow of processing for calculating the execution offset in the first cycle, and the alternate long and short dash line indicates the flow of processing for calculating the execution offset in the second cycle by the calculation method 12 described above.
Further, FIG. 32 summarizes the flow of processing in which the central apparatus calculates the execution offset in the third cycle in the twelfth embodiment.
In FIG. 32, the solid line shows the flow of processing for calculating the execution offset in the second cycle by the calculation method 4-1, and the broken line calculates the execution offset in the second cycle by the calculation method 4-2. The flow of processing is shown, and the one-dot chain line shows the flow of processing for calculating the execution offset in the third cycle by the calculation method 12 described above.

  Further, in the above-described fifth embodiment, the central device 1 is scheduled to transmit the execution offset in the next cycle and the current cycle for the traffic signal controller 2 of each intersection IS constituting the provision target intersection (or the current cycle). Provided intersection signal including the cycle length (that is, the cycle length in the next cycle) to be included in the signal control command information that has already been transmitted in (1) and the blue time in the main road direction calculated from the signal control parameter to be included in the signal control command information The information is transmitted to the information relay device 3, but in the present embodiment 12, the central device 1 further updates the offset next time (referred to as the offset update scheduled time in the present embodiment 12) or The remaining time until the scheduled offset update time, the number of intersections constituting the provided intersection, and each intersection constituting the provided intersection Intersection ID of points, offset reference time included in the signal control command information (that is, offset reference time in the next cycle), absolute time corresponding to execution offset in the next cycle, fluctuation range of the cycle length (for all indications) (The sum of the sensitivity width of the point sensitive control), the fluctuation range of the blue time (the sum of the sensitivity width of the point sensitive control with respect to the blue time), and the target offset (that is, the next cycle) included in the signal control command information ), The following width included in the signal control command information (that is, the following width in the next cycle), the following method designation flag in the next cycle (for example, “0” is −1/8 or +1/8, “1”) "-1/8 or +1/4," 2 "is +1/4, etc.) in the provided intersection signal information, To trust. Note that the cycle length and the blue time in the main road direction included in the signal control command information are referred to as a reference cycle length and a reference blue time in the twelfth embodiment, respectively.

In the above-described fifth embodiment, the information relay device 3 starts the cycle in the next cycle of the traffic signal controller 2 at the reference intersection based on the reference intersection signal information acquired every predetermined time (for example, 1 second). In the present embodiment 12, the elapsed time from the offset reference time is calculated by adding the execution offset of the reference intersection to the elapsed time from the cycle start time.
The information relay device 3 plans to update the offset of the traffic signal controller 2 at each intersection constituting the provision target intersection included in the provision target intersection signal information at a predetermined time (for example, when the provision target intersection signal information is received). Time remaining until time or offset update scheduled time, number of intersections constituting the target intersection, intersection ID of each intersection constituting the target intersection, reference cycle length, reference green time, execution offset, absolute time of execution offset, target Green wave signal information in the next cycle is created based on the offset, the tracking width, and the elapsed time from the calculated offset reference time.

FIG. 33 is a diagram illustrating an example of a format of green wave signal information according to the twelfth embodiment. When the number of intersections including the reference intersection and the dependent intersection included in the provided intersection is NN, the green wave signal information is the offset update scheduled time or the remaining time until the offset update scheduled time, the elapsed time from the offset reference time, Number of intersections NN, intersection ID of each intersection constituting the provided intersection, execution offset in a predetermined first cycle (the next cycle in the above example), absolute time of execution offset, reference cycle length, fluctuation range of cycle length, reference It includes the blue time, the fluctuation range of the blue time, the target offset, the minimum tracking width, the maximum tracking width, and the tracking method designation flag.
Intersection 1 is a reference intersection, and intersections 2 to NN are subordinate intersections. The following width is divided into a minimum value (following minimum width) and a maximum value (following maximum width).

[Effects of Embodiment 12]
According to the traffic system of the twelfth embodiment, regardless of whether or not the traffic signal controllers 2 of each intersection IS constituting the provision target intersection are synchronized in a predetermined first cycle, those traffic signal controllers 2. The green wave signal information relating to the display schedule of the signal light color of these traffic signal controllers 2 in the first cycle, including the execution offset, cycle length, etc. in the first cycle is created.
The in-vehicle device 5 is based on the offset predicted from the offset obtained as a result of the actual signal control by the traffic signal controller 2, which is the execution offset in the first cycle, and the blue time in the traveling direction of the vehicle 6. Since it is possible to predict the start time and the end time of the green light in the first cycle of each intersection in accordance with the movement of the traffic signal controller 2, driving that can pass through the provided intersection during the green light The speed range can be calculated appropriately.

  In the twelfth embodiment described above, the green wave signal information in the predetermined first cycle stores the elapsed time from the offset reference time and also stores the execution offset based on the offset reference time. However, the present invention is not limited to this, and an elapsed time from an arbitrary reference time is stored, and an execution offset (difference between the arbitrary reference time and the cycle start time of each intersection) is stored based on the arbitrary reference time. It may be a configuration. In this case, it is preferable to set a time related to the operation of the reference intersection as an arbitrary reference time. However, for example, the actual cycle start time of the current cycle of the reference intersection may be set, or the start of the green signal at the reference intersection It may be the time or the end time of the green light. In addition, when the actual cycle start time of the current cycle of the reference intersection has fluctuated due to point sensitive control, the cycle of the next cycle of the reference intersection assuming that point sensitive control has not been performed in the current cycle It may be the scheduled start time.

It should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
For example, although some combinations have been described in the above embodiments 1 to 12, other combinations may be performed.

  Further, the green wave signal information in the predetermined first cycle of the above embodiment may include identification information indicating whether or not each intersection is synchronized in the first cycle. The in-vehicle device 5 can be used for predicting the time zone of the green light at each intersection in the first cycle by acquiring identification information indicating whether or not synchronization is in progress.

DESCRIPTION OF SYMBOLS 1 Central apparatus, 101 Calculation part, 102 Storage part, 103 Transmission / reception part, 104 Clock part 2, 2A, 2B, 2C, 2D Traffic signal controller 3 Information relay apparatus, 301 1st interface part, 302 2nd interface part, 303 Relay unit, 304 control unit, 305 storage unit 4 roadside communication device, 5 in-vehicle device, 6 vehicle IS, ISA, ISB, ISC, ISD intersection RM main road, RSA, RSB, RSC, RSD secondary road

Claims (45)

A traffic system that provides a vehicle with a plurality of intersection signal light color display information including information related to a display schedule of a signal light color of a signal light device installed at each of a plurality of intersections,
A plurality of traffic signal controllers installed at each of the plurality of intersections for controlling the display of the signal lamp color of the signal lamp installed at each of the plurality of intersections;
A central device for creating signal control parameter information for each of the plurality of traffic signal controllers used by the traffic signal controller to control display of the signal lamp color of the signal lamp;
An information creation device for creating the plurality of intersection signal lamp color display information,
The central device is configured to transmit a plurality of intersection signal information including signal control parameter information corresponding to each of the plurality of traffic signal controllers to the information creation device,
A traffic signal controller (hereinafter referred to as “reference traffic signal controller” in the present claim) installed at one of the plurality of intersections (hereinafter referred to as “reference intersection” in the present claims) For each predetermined first period shorter than the cycle length, the reference intersection signal information including the scheduled display time of the signal lamp color of the signal lamp controlled by itself is transmitted to the information creating device,
The information creating device is configured to calculate an elapsed time from a cycle start time in a predetermined first cycle of the reference traffic signal controller based on the reference intersection signal information.
The information creating device, based on the calculated elapsed time from the cycle start time in the first cycle of the reference traffic signal controller and the multiple traffic signal information, the multiple intersection signal lamp color in the first cycle Configured to create display information,
Transportation system. In the first cycle, further comprising a determination means for determining whether or not all of the plurality of traffic signal controllers are in synchronization,
The information creating device is configured to create the plurality of intersection signal light color display information in the first cycle when it is determined that the determination unit is in synchronization.
The transportation system according to claim 1. In the first cycle, further comprising a determination means for determining whether or not each of the plurality of traffic signal controllers is in synchronization,
The information creating device includes information on a display schedule of a signal lamp color of the signal lamp device in the first cycle for only the traffic signal controller determined that the determination unit is in synchronization among the plurality of traffic signal controllers. Configured to create multiple intersection signal light color display information including,
The transportation system according to claim 1. Within a predetermined number of cycles from the first cycle, further comprising a determination means for determining whether all of the plurality of traffic signal controllers are in synchronization,
The information creating device is configured to create the plurality of intersection signal light color display information in the first cycle when it is determined that the determination unit is in synchronization.
The transportation system according to claim 1. The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length, a target offset that is a target offset, and an offset reference time that is a reference time for measuring the offset, The tracking width that is the width that can extend or shorten the cycle length in one cycle is included,
Each of the plurality of traffic signal controllers is configured to create signal control execution information including a result of controlling display of a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. And
The signal control execution information corresponding to each of the plurality of traffic signal controllers includes a cycle start time in the second cycle and an execution time of each of the plurality of stairs constituting the second cycle. And the execution seconds of each floor
The determination means includes the cycle length corresponding to each of the plurality of traffic signal controllers, the target offset, the offset reference time, the tracking width, the cycle start time in the second cycle, Based on the execution seconds of each of the floors in two cycles, it is configured to determine whether or not synchronization is in progress,
The traffic system according to any one of claims 2 to 4. The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length, an offset reference time that is a reference time for measuring an offset, and an extension or shortening of the cycle length in one cycle. The following width that is possible width is included,
Each of the plurality of traffic signal controllers is configured to create signal control execution information including a result of controlling display of a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. And
The signal control execution information corresponding to each of the plurality of traffic signal controllers includes a cycle start time in the second cycle and an execution time of each of the plurality of stairs constituting the second cycle. And the execution seconds of each floor
The one corresponding to one or more traffic signal controllers (hereinafter referred to as “dependent traffic signal controllers” in the present invention) installed at a dependent intersection that is an intersection other than the reference intersection among the plurality of intersections. Based on the cycle length, the offset reference time, the cycle start time in the second cycle, and the execution seconds of each floor in the second cycle, each of the one or more subordinate traffic signal controllers A calculation means for calculating an execution offset that is an offset executed in the corresponding first cycle;
The information creation device includes the cycle length corresponding to each of the plurality of traffic signal controllers, the following width, and the direction of the vehicle in the first cycle of each of the plurality of traffic signal controllers. Green time, elapsed time from the start of the cycle in the first cycle of the reference traffic signal controller, and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers. Configured to create the multiple intersection signal lamp color display information including,
The transportation system according to claim 1. The second cycle is a cycle two times before the first cycle,
The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle, a follow-up width in the first cycle, and a cycle preceding the first cycle. The cycle length in three cycles and the offset reference time in the third cycle are included,
The calculating means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the offset reference time in the third cycle, and the cycle start time in the second cycle. The execution offset in the third cycle corresponding to each of the one or more dependent traffic signal controllers is calculated based on the execution seconds of each of the floors in the second cycle, and the one or more dependent traffics are calculated. The execution offset in the third cycle corresponding to each signal controller is configured to be regarded as the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers,
The information creation device includes the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, the follow-up width in the first cycle, the blue time in the first cycle, and the reference traffic. The multiple intersection signal lamp color display including an elapsed time from the cycle start time in the first cycle of the signal controller and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers Configured to create information,
The transportation system according to claim 6. The calculating means is based on the cycle start time in the second cycle corresponding to each of the one or more subordinate traffic signal controllers and the number of execution seconds of each step in the second cycle. Calculating a cycle start time in the third cycle corresponding to each of a plurality of subordinate traffic signal controllers, a cycle start time in the third cycle corresponding to each of the one or a plurality of subordinate traffic signal controllers, and the third cycle Based on the cycle length in the cycle and the offset reference time in the third cycle, the execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers is calculated, The execution off in the third cycle corresponding to each of a plurality of subordinate traffic signal controllers The Tsu bets are configured to regarded as the run offset in the one or more subordinate traffic signal controller the first cycle corresponding to each
The transportation system according to claim 7. The second cycle is a cycle two times before the first cycle,
The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle, a follow-up width in the first cycle, and a cycle preceding the first cycle. The cycle length in three cycles, the offset reference time in the third cycle, and the tracking width in the third cycle are included,
The calculating means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the offset reference time in the third cycle, and the cycle start time in the second cycle. The execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers is calculated based on the execution seconds of each of the tiers in the second cycle, and the one or more subordinates are further calculated. The one or more subordinate traffic signal controls based on the execution offset in the third cycle, the cycle length in the third cycle, and the tracking width in the third cycle corresponding to each traffic signal controller The execution offset in the first cycle corresponding to each machine is calculated. Is configured to,
The information creation device includes the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, the follow-up width in the first cycle, the blue time in the first cycle, and the reference traffic. The multiple intersection signal lamp color display including an elapsed time from the cycle start time in the first cycle of the signal controller and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers Configured to create information,
The transportation system according to claim 6. The second cycle is a cycle two times before the first cycle,
The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle, a follow-up width in the first cycle, and a cycle preceding the first cycle. A cycle length in three cycles, an offset reference time in the third cycle, a target offset which is a target offset in the third cycle, and a follow-up width in the third cycle,
The calculating means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the offset reference time in the third cycle, and the cycle start time in the second cycle. The execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers is calculated based on the execution seconds of each of the tiers in the second cycle, and the one or more subordinates are further calculated. Based on the execution offset in the third cycle corresponding to each traffic signal controller, the cycle length in the third cycle, the target offset in the third cycle, and the follow-up width in the third cycle The first corresponding to each of the one or more subordinate traffic signal controllers It is configured to calculate the execution offset in cycles,
The information creation device includes the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, the follow-up width in the first cycle, the blue time in the first cycle, and the reference traffic. The multiple intersection signal lamp color display including an elapsed time from the cycle start time in the first cycle of the signal controller and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers Configured to create information,
The transportation system according to claim 6. The calculating means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the offset reference time in the third cycle, and the cycle start time in the second cycle. The execution offset in the third cycle corresponding to each of the one or more dependent traffic signal controllers is calculated based on the execution seconds of each of the floors in the second cycle, and the one or more dependent traffics are calculated. Based on the execution offset in the third cycle corresponding to each signal controller, the cycle length in the third cycle, the target offset in the third cycle, and the follow-up width in the third cycle, The third cycle corresponding to each of the one or more subordinate traffic signal controllers; Calculating an execution cycle length that is a cycle length executed in step (i), the execution cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, and the execution offset in the third cycle; Based on the cycle length in the third cycle, the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers is calculated,
The transportation system according to claim 10. The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length and a tracking width that is a width capable of extending or shortening the cycle length in one cycle,
Each of the plurality of traffic signal controllers is configured to create signal control execution information including a result of controlling display of a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. And
The signal control execution information corresponding to each of the plurality of traffic signal controllers includes an execution offset that is an offset executed in the second cycle and an execution time of each of the plurality of stairs constituting the second cycle. And the execution seconds of each floor in the second cycle,
The one corresponding to one or more traffic signal controllers (hereinafter referred to as “dependent traffic signal controllers” in the present invention) installed at a dependent intersection that is an intersection other than the reference intersection among the plurality of intersections. In the first cycle corresponding to each of the one or more subordinate traffic signal controllers based on the cycle length, the execution offset in the second cycle, and the execution seconds of each step in the second cycle A calculation means for calculating an execution offset that is an executed offset;
The information creation device includes the cycle length corresponding to each of the plurality of traffic signal controllers, the following width, and the direction of the vehicle in the first cycle of each of the plurality of traffic signal controllers. Green time, elapsed time from the start of the cycle in the first cycle of the reference traffic signal controller, and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers. Configured to create the multiple intersection signal lamp color display information including,
The transportation system according to claim 1. The second cycle is a cycle two times before the first cycle,
The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle, a follow-up width in the first cycle, and a cycle preceding the first cycle. Cycle length in three cycles is included,
The calculating means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the execution offset in the second cycle, and the execution seconds of each step in the second cycle. And calculating an execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers based on the number and in the third cycle corresponding to each of the one or more subordinate traffic signal controllers. The execution offset is configured to be regarded as the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers;
The information creation device includes the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, the follow-up width in the first cycle, the blue time in the first cycle, and the reference traffic. The multiple intersection signal lamp color display including an elapsed time from the cycle start time in the first cycle of the signal controller and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers Configured to create information,
The transportation system according to claim 12. The second cycle is a cycle two times before the first cycle,
The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle, a follow-up width in the first cycle, and a cycle preceding the first cycle. The cycle length in three cycles and the follow-up width in the third cycle are included,
The calculating means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the execution offset in the second cycle, and the execution seconds of each step in the second cycle. And an execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, and further, the third cycle corresponding to each of the one or more subordinate traffic signal controllers. The execution in the first cycle corresponding to each of the one or more subordinate traffic signal controllers based on the execution offset in the first cycle, the cycle length in the third cycle, and the tracking width in the third cycle Configured to calculate the offset,
The information creation device includes the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, the follow-up width in the first cycle, the blue time in the first cycle, and the reference traffic. The multiple intersection signal lamp color display including an elapsed time from the cycle start time in the first cycle of the signal controller and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers Configured to create information,
The transportation system according to claim 12. The execution offset in the first cycle includes a minimum value and a maximum value,
The transportation system according to claim 9 or 14. The second cycle is a cycle two times before the first cycle,
The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle, a follow-up width in the first cycle, and a cycle preceding the first cycle. A cycle length in three cycles, a target offset that is a target offset in the third cycle, and a follow-up width in the third cycle,
The calculating means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the execution offset in the second cycle, and the execution seconds of each step in the second cycle. And an execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, and further, the third cycle corresponding to each of the one or more subordinate traffic signal controllers. Each of the one or more subordinate traffic signal controllers based on the execution offset in the first cycle, the cycle length in the third cycle, the target offset in the third cycle, and the follow-up width in the third cycle. The execution offset in the first cycle corresponding to is calculated. It has been,
The information creation device includes the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, the follow-up width in the first cycle, the blue time in the first cycle, and the reference traffic. The multiple intersection signal lamp color display including an elapsed time from the cycle start time in the first cycle of the signal controller and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers Configured to create information,
The transportation system according to claim 12. The calculating means includes the cycle length in the third cycle corresponding to each of the one or more subordinate traffic signal controllers, the execution offset in the second cycle, and the execution seconds of each step in the second cycle. And calculating an execution offset in the third cycle corresponding to each of the one or more subordinate traffic signal controllers based on the number and in the third cycle corresponding to each of the one or more subordinate traffic signal controllers. The cycle length executed in the third cycle based on the execution offset, the cycle length in the third cycle, the target offset in the third cycle, and the follow-up width in the third cycle. The execution cycle length is calculated, and each of the one or more subordinate traffic signal controllers is calculated. Corresponding to each of the one or more subordinate traffic signal controllers based on the execution cycle length in the corresponding third cycle, the execution offset in the third cycle, and the cycle length in the third cycle. Configured to calculate the execution offset in the first cycle;
The transportation system according to claim 16. The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle and a tracking width in the first cycle,
The vehicle in the first cycle of each of the plurality of traffic signal controllers based on the cycle length in the first cycle and the tracking width in the first cycle corresponding to each of the plurality of traffic signal controllers. Further comprising a second calculating means for calculating a minimum value and a maximum value of the blue time in the direction in which the vehicle enters,
The information creation device includes a minimum value and a maximum value of the green time in the first cycle corresponding to each of the plurality of traffic signal controllers, and the cycle start time in the first cycle of the reference traffic signal controller. The plurality of intersection signal light color display information including the elapsed time of and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers,
The transportation system according to claim 6 or 12. The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length, an offset reference time that is a reference time for measuring an offset, and an extension or shortening of the cycle length in one cycle. The following width that is possible width is included,
Each of the plurality of traffic signal controllers is configured to create signal control execution information including a result of controlling display of a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. And
The signal control execution information corresponding to each of the plurality of traffic signal controllers includes a cycle start time in the second cycle and an execution time of each of the plurality of stairs constituting the second cycle. And the execution seconds of each floor
Based on the cycle length corresponding to each of the plurality of traffic signal controllers, the offset reference time, the cycle start time in the second cycle, and the execution seconds of each step in the second cycle, A calculation means for calculating an execution offset that is an offset executed in the first cycle corresponding to each of the plurality of traffic signal controllers;
The information creating device includes the cycle length corresponding to each of the plurality of traffic signal controllers, the tracking width, the execution offset in the first cycle, and the first of each of the plurality of traffic signal controllers. The multiple intersection signal lamp color display information including a blue time in a direction in which the vehicle enters in a cycle and an elapsed time from a predetermined reference time point is created.
The transportation system according to claim 1. The second cycle is a cycle two times before the first cycle,
The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle, a follow-up width in the first cycle, and a cycle preceding the first cycle. The cycle length in three cycles and the offset reference time in the third cycle are included,
The signal control execution information corresponding to each of the plurality of traffic signal controllers further includes a planned cycle length that is a planned cycle length in the second cycle,
The calculating means includes the cycle length in the third cycle corresponding to each of the plurality of traffic signal controllers, the offset reference time in the third cycle, the cycle start time in the second cycle, and the first cycle. Based on the number of execution seconds of each of the floors in two cycles, the execution offset in the third cycle corresponding to each of the plurality of traffic signal controllers is calculated, and further, the corresponding to each of the plurality of traffic signal controllers Based on the execution offset in the third cycle, the cycle length in the third cycle, and the scheduled cycle length in the second cycle, the first cycle corresponding to each of the plurality of traffic signal controllers It is configured to calculate the execution offset,
The information creation device includes the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, the follow-up width in the first cycle, the execution offset in the first cycle, and the first The multiple intersection signal lamp color display information including the blue time in a cycle and an elapsed time from a predetermined reference time point is created.
The transportation system according to claim 19. The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length and a tracking width that is a width capable of extending or shortening the cycle length in one cycle,
Each of the plurality of traffic signal controllers is configured to create signal control execution information including a result of controlling display of a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. And
The signal control execution information corresponding to each of the plurality of traffic signal controllers includes an execution offset that is an offset executed in the second cycle and an execution time of each of the plurality of stairs constituting the second cycle. And the execution seconds of each floor in the second cycle,
The plurality of traffic signal controllers based on the cycle length corresponding to each of the plurality of traffic signal controllers, the execution offset in the second cycle, and the execution seconds of each step in the second cycle A calculation unit that calculates an execution offset that is an offset executed in the first cycle corresponding to each of the first cycle;
The information creating device includes the cycle length corresponding to each of the plurality of traffic signal controllers, the tracking width, the execution offset in the first cycle, and the first of each of the plurality of traffic signal controllers. The multiple intersection signal lamp color display information including a blue time in a direction in which the vehicle enters in a cycle and an elapsed time from a predetermined reference time point is created.
The transportation system according to claim 1. The second cycle is a cycle two times before the first cycle,
The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length in the first cycle, a follow-up width in the first cycle, and a cycle preceding the first cycle. Cycle length in three cycles is included,
The signal control execution information corresponding to each of the plurality of traffic signal controllers further includes a planned cycle length that is a planned cycle length in the second cycle,
The calculating means includes the cycle length in the third cycle corresponding to each of the plurality of traffic signal controllers, the cycle start time in the second cycle, and the number of execution seconds of each step in the second cycle. On the basis of the execution offset in the third cycle corresponding to each of the plurality of traffic signal controllers, the execution offset in the third cycle corresponding to each of the plurality of traffic signal controllers, and the third Based on the cycle length in a cycle and the planned cycle length in the second cycle, the execution offset in the first cycle corresponding to each of the plurality of traffic signal controllers is configured,
The information creation device includes the cycle length in the first cycle corresponding to each of the plurality of traffic signal controllers, the follow-up width in the first cycle, the execution offset in the first cycle, and the first The multiple intersection signal lamp color display information including the blue time in a cycle and an elapsed time from a predetermined reference time point is created.
The transportation system according to claim 21. The signal control parameter information corresponding to each of the plurality of traffic signal controllers further includes a target offset which is a target offset in the first cycle,
The information creating device is further configured to create the plurality of intersection signal lamp color display information including the target offset in the first cycle corresponding to each of the plurality of traffic signal controllers.
The transportation system according to claim 20 or 22. The multiple intersection signal lamp color display information includes a sensitivity range of point sensitive control corresponding to each of the plurality of traffic signal controllers.
The traffic system according to any one of claims 1 to 23. Based on the sensitivity width of the point sensitive control corresponding to each of the plurality of traffic signal controllers, the minimum value of the blue time in the direction in which the vehicle enters in the first cycle of each of the plurality of traffic signal controllers and A third calculating means for calculating the maximum value;
The information creating device is configured to create the plurality of intersection signal light color display information including a minimum value and a maximum value of the blue time in the first cycle corresponding to each of the plurality of traffic signal controllers.
The traffic system according to any one of claims 1 to 24. The signal control parameter information corresponding to each of the plurality of traffic signal controllers further includes a split in the first cycle,
The third calculating means is a direction in which the vehicle enters the first cycle of each of the plurality of traffic signal controllers based on the split in the first cycle corresponding to the plurality of traffic signal controllers. The reference blue time (hereinafter referred to as “reference blue time” in this claim) is calculated, and the minimum value of the sensitivity width is added to the reference blue time to calculate the minimum value of the blue time. In addition, the maximum of the blue time is calculated by adding the maximum value of the sensitivity width to the reference blue time,
The transportation system according to claim 25. The signal control parameter information corresponding to each of the plurality of traffic signal controllers further includes a split in the first cycle,
The third calculating means is a direction in which the vehicle enters the first cycle of each of the plurality of traffic signal controllers based on the split in the first cycle corresponding to the plurality of traffic signal controllers. The reference blue time (hereinafter referred to as “reference blue time” in this claim) is calculated, and the minimum value of the sensitivity width is added to the reference blue time, and the maximum value of the sensitivity width is subtracted. The minimum value of the blue time is calculated by the above, and the maximum value of the blue time is calculated by adding the maximum value of the sensitivity width to the reference blue time and subtracting the minimum value of the sensitivity width. ,
The transportation system according to claim 25. The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length, an offset reference time that is a reference time for measuring an offset, and an extension or shortening of the cycle length in one cycle. The following width that is possible width is included,
Each of the plurality of traffic signal controllers is configured to create signal control execution information including a result of controlling display of a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. And
The signal control execution information corresponding to each of the plurality of traffic signal controllers includes a cycle start time in the second cycle and an execution time of each of the plurality of stairs constituting the second cycle. The execution time of each floor and the sensitivity fluctuation value that is the time extended or shortened as a result of executing the point sensitivity control in the second cycle are included,
The one corresponding to one or more traffic signal controllers (hereinafter referred to as “dependent traffic signal controllers” in the present invention) installed at a dependent intersection that is an intersection other than the reference intersection among the plurality of intersections. The cycle length, the offset reference time, the cycle start time in the second cycle, the execution seconds of each step in the second cycle, the sensitive variation value in the second cycle, and the one or more An execution offset which is an offset executed in the first cycle corresponding to each of the one or more subordinate traffic signal controllers is calculated based on the sensitivity width of the point sensitive control corresponding to each of the subordinate traffic signal controllers. A calculation means,
The information creation device includes the cycle length corresponding to each of the plurality of traffic signal controllers, the following width, and the direction of the vehicle in the first cycle of each of the plurality of traffic signal controllers. Green time, elapsed time from the start of the cycle in the first cycle of the reference traffic signal controller, and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers. Configured to create the multiple intersection signal lamp color display information including,
The transportation system according to claim 1. The signal control parameter information corresponding to each of the plurality of traffic signal controllers includes a cycle length and a tracking width that is a width capable of extending or shortening the cycle length in one cycle,
Each of the plurality of traffic signal controllers is configured to create signal control execution information including a result of controlling display of a signal lamp color of the signal lamp device in a second cycle that is a cycle before the first cycle. And
The signal control execution information corresponding to each of the plurality of traffic signal controllers includes an execution offset that is an offset executed in the second cycle and an execution time of each of the plurality of stairs constituting the second cycle. The execution seconds of each floor in the second cycle and the sensitivity fluctuation value that is the time extended or shortened as a result of executing the point sensitivity control in the second cycle are included,
The one corresponding to one or more traffic signal controllers (hereinafter referred to as “dependent traffic signal controllers” in the present invention) installed at a dependent intersection that is an intersection other than the reference intersection among the plurality of intersections. A cycle length, the execution offset in the second cycle, the execution seconds of each step in the second cycle, the sensitivity variation value in the second cycle, and each of the one or more subordinate traffic signal controllers. Based on the sensitivity width of the corresponding point sensitive control, further comprising a calculation means for calculating an execution offset which is an offset executed in the first cycle corresponding to each of the one or more subordinate traffic signal controllers,
The information creation device includes the cycle length corresponding to each of the plurality of traffic signal controllers, the following width, and the direction of the vehicle in the first cycle of each of the plurality of traffic signal controllers. Green time, elapsed time from the start of the cycle in the first cycle of the reference traffic signal controller, and the execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers. Configured to create the multiple intersection signal lamp color display information including,
The transportation system according to claim 1. The information creating device includes a shortest and longest start time of a green light and a shortest and longest end time of the green light in each of the plurality of traffic signal controllers in the direction in which the vehicle enters in the first cycle. Configured to create the multiple intersection signal lamp color display information including,
The transportation system according to claim 1. The reference intersection is an intersection that the vehicle reaches first.
The traffic system according to any one of claims 1 to 30. The reference intersection is an important intersection,
A subordinate intersection that is an intersection other than the reference intersection among the plurality of intersections is an intersection included in the same subarea as the important intersection.
The traffic system according to any one of claims 1 to 31. A traffic system that provides a vehicle with a plurality of intersection signal light color display information including information related to a display schedule of a signal light color of a signal light device installed at each of a plurality of intersections,
A plurality of traffic signal controllers for controlling the display of the signal lamp color of the signal lamp installed at each of the plurality of intersections;
In the predetermined first cycle, determination means for determining whether or not all of the plurality of traffic signal controllers are in synchronization,
A traffic system comprising: an information creating device that creates the plurality of intersection signal lamp color display information in the first cycle when it is determined that the determination unit is in synchronization. A traffic system that provides a vehicle with a plurality of intersection signal light color display information including information related to a display schedule of a signal light color of a signal light device installed at each of a plurality of intersections,
A plurality of traffic signal controllers for controlling the display of the signal lamp color of the signal lamp installed at each of the plurality of intersections;
In the predetermined first cycle, determination means for determining whether or not each of the plurality of traffic signal controllers is in synchronization;
Among the plurality of traffic signal controllers, the plurality of intersection signal lamp colors including information related to the display schedule of the signal lamp color of the signal lamp unit in the first cycle for only the traffic signal controller determined that the determination unit is in synchronization. A traffic system comprising an information creation device for creating display information. A traffic system that provides a vehicle with a plurality of intersection signal light color display information including information related to a display schedule of a signal light color of a signal light device installed at each of a plurality of intersections,
A plurality of traffic signal controllers for controlling the display of the signal lamp color of the signal lamp installed at each of the plurality of intersections;
A determination means for determining whether or not all of the plurality of traffic signal controllers are synchronized within a predetermined number of cycles from a predetermined first cycle;
A traffic system comprising: an information creating device that creates the plurality of intersection signal lamp color display information in the first cycle when it is determined that the determination unit is in synchronization. An information creation device for creating a plurality of intersection signal lamp color display information including information related to a display schedule of a signal lamp color of a signal lamp installed at each of a plurality of intersections,
Each of a plurality of traffic signal controllers that control the display of the signal lamp color of the signal lamp installed at each of the plurality of intersections, and a shortest and longest start time of a green signal in a direction in which the vehicle enters in a predetermined first cycle. An information creating apparatus comprising creating means for creating the plurality of intersection signal lamp color display information including the shortest and longest end points of the green light. A data structure of the plurality of intersection signal lamp color display information used in a traffic system for providing a vehicle with a plurality of intersection signal lamp color display information including information related to a display schedule of a signal lamp color of a signal lamp installed at each of a plurality of intersections,
A cycle length in a predetermined first cycle corresponding to each of a plurality of traffic signal controllers installed at each of the plurality of intersections, which controls display of the signal lamp color of the signal lamp installed at each of the plurality of intersections, and The blue hour in the direction the vehicle enters,
The traffic signal controller (hereinafter referred to as “reference traffic signal controller” in this claim) installed at one of the plurality of intersections (hereinafter referred to as “reference intersection” in this claim). The elapsed time from the start of the cycle in one cycle,
The one corresponding to one or more traffic signal controllers (hereinafter referred to as “dependent traffic signal controllers” in the present invention) installed at a dependent intersection that is an intersection other than the reference intersection among the plurality of intersections. Including the target offset, which is the target offset in the first cycle,
data structure. A data structure of the plurality of intersection signal lamp color display information used in a traffic system for providing a vehicle with a plurality of intersection signal lamp color display information including information related to a display schedule of a signal lamp color of a signal lamp installed at each of a plurality of intersections,
A cycle length in a predetermined first cycle corresponding to each of a plurality of traffic signal controllers installed at each of the plurality of intersections, which controls display of the signal lamp color of the signal lamp installed at each of the plurality of intersections, A tracking width that is a width in which the cycle length in the cycle can be extended or shortened, and a blue time in a direction in which the vehicle enters
The traffic signal controller (hereinafter referred to as “reference traffic signal controller” in this claim) installed at one of the plurality of intersections (hereinafter referred to as “reference intersection” in this claim). The elapsed time from the start of the cycle in one cycle,
The one corresponding to one or more traffic signal controllers (hereinafter referred to as “dependent traffic signal controllers” in the present invention) installed at a dependent intersection that is an intersection other than the reference intersection among the plurality of intersections. An execution offset that is an offset executed in the third cycle, which is the cycle before the first cycle,
data structure. A data structure of the plurality of intersection signal lamp color display information used in a traffic system for providing a vehicle with a plurality of intersection signal lamp color display information including information related to a display schedule of a signal lamp color of a signal lamp installed at each of a plurality of intersections,
A cycle length in a predetermined first cycle corresponding to each of a plurality of traffic signal controllers installed at each of the plurality of intersections, which controls display of the signal lamp color of the signal lamp installed at each of the plurality of intersections, A tracking width that is a width in which the cycle length in the cycle can be extended or shortened, and a blue time in a direction in which the vehicle enters
The traffic signal controller (hereinafter referred to as “reference traffic signal controller” in this claim) installed at one of the plurality of intersections (hereinafter referred to as “reference intersection” in this claim). The elapsed time from the start of the cycle in one cycle,
The one corresponding to one or more traffic signal controllers (hereinafter referred to as “dependent traffic signal controllers” in the present invention) installed at a dependent intersection that is an intersection other than the reference intersection among the plurality of intersections. Including an execution offset that is an offset executed in the first cycle,
data structure. A data structure of the plurality of intersection signal lamp color display information used in a traffic system for providing a vehicle with a plurality of intersection signal lamp color display information including information related to a display schedule of a signal lamp color of a signal lamp installed at each of a plurality of intersections,
A cycle length in a predetermined first cycle corresponding to each of a plurality of traffic signal controllers installed at each of the plurality of intersections, which controls display of the signal lamp color of the signal lamp installed at each of the plurality of intersections,
The traffic signal controller (hereinafter referred to as “reference traffic signal controller” in this claim) installed at one of the plurality of intersections (hereinafter referred to as “reference intersection” in this claim). The elapsed time from the start of the cycle in one cycle and the blue time in the direction in which the vehicle enters,
The one corresponding to one or more traffic signal controllers (hereinafter referred to as “dependent traffic signal controllers” in the present invention) installed at a dependent intersection that is an intersection other than the reference intersection among the plurality of intersections. An execution offset which is an execution offset in the first cycle, and a minimum value and a maximum value of the green time in the direction in which the vehicle enters,
data structure. Furthermore, including a sensitivity range of point sensitive control corresponding to each of the plurality of traffic signal controllers,
41. A data structure according to any one of claims 37 to 40. The green time in the direction in which the vehicle enters in the first cycle corresponding to each of the plurality of traffic signal controllers includes a minimum value and a maximum value.
The data structure according to any one of claims 37 to 41. The execution offset in the first cycle corresponding to each of the one or more subordinate traffic signal controllers includes a minimum value and a maximum value;
43. A data structure according to any one of claims 39 to 42. A data structure of the plurality of intersection signal lamp color display information used in a traffic system for providing a vehicle with a plurality of intersection signal lamp color display information including information related to a display schedule of a signal lamp color of a signal lamp installed at each of a plurality of intersections,
The vehicle enters a predetermined first cycle corresponding to each of a plurality of traffic signal controllers installed at each of the plurality of intersections, which controls display of the signal lamp color of the signal lamp installed at each of the plurality of intersections. The shortest and longest end of the green light in the direction
The traffic signal controller (hereinafter referred to as “reference traffic signal controller” in this claim) installed at one of the plurality of intersections (hereinafter referred to as “reference intersection” in this claim). The start of a green light in the direction in which the vehicle enters in one cycle;
The one corresponding to one or more traffic signal controllers (hereinafter referred to as “dependent traffic signal controllers” in the present invention) installed at a dependent intersection that is an intersection other than the reference intersection among the plurality of intersections. Including the shortest and longest start time of the green light in the direction in which the vehicle enters in the first cycle,
data structure. A data structure of the plurality of intersection signal lamp color display information used in a traffic system for providing a vehicle with a plurality of intersection signal lamp color display information including information related to a display schedule of a signal lamp color of a signal lamp installed at each of a plurality of intersections,
The elapsed time from a given reference point,
A cycle length in a predetermined first cycle corresponding to each of a plurality of traffic signal controllers installed at each of the plurality of intersections, which controls display of the signal lamp color of the signal lamp installed at each of the plurality of intersections, Including a blue time in the direction in which the vehicle enters, an execution offset that is an executed offset, and a follow-up width that is a width capable of extending or shortening the cycle length in one cycle.
data structure.

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