JP4211619B2 - Traffic signal display method, traffic signal display system control device, and traffic signal display system control program - Google Patents

Description

  The present invention relates to a method, a control device, and a program for displaying a traffic signal on a traffic signal display system that is installed at an intersection and performs traffic control.

  If the pedestrian signal lamp is in red light display longer than necessary even though it can actually cross, the pedestrian tends to ignore the signal and cross the road.

  In particular, at the intersection where a wide road (main road) and a narrow road (secondary road) meet as shown in FIG. 1 (a point where a plurality of roads such as crossroads, T-shaped roads, and Y-shaped roads meet) The follower pedestrian signal lamp is set to display a green light for a long time so that the pedestrian can cross the main road. In addition, according to the conventional traffic signal display system control method, the timing at which the signal from the signal lamp for the secondary road vehicle changes from blue to yellow is higher than the timing at which the signal from the signal lamp for the secondary road pedestrian changes from blue to flashing. It is set to be slightly delayed. Therefore, the red signal display continues for a long time in any main road signal lamp. Since the signal light for the main road vehicle and the signal light for the main road pedestrian switch from red to blue after the signal of the signal light for the sub road vehicle switches from yellow to red, pedestrians who want to cross the sub road are Even though the vehicles traveling on the road are sparse, they are forced to wait for a long time. Such a state may induce ignoring the signal of a pedestrian trying to cross the secondary road.

  As conventional techniques for shortening the signal waiting time of a pedestrian, there are the following techniques. Patent Document 1 discloses a normal signal display sequence when a vehicle traveling in the secondary direction is sensed in order to preferentially cross the pedestrian in the secondary direction, and a crossing request for the pedestrian traveling in the secondary direction. If there is a signal, a method of changing the signal display sequence so as to shorten the signal waiting time of the pedestrian in the secondary direction is disclosed (prior art 1).

  Patent Document 2 discloses a method for lighting a pedestrian progress display temporarily in response to a pedestrian requesting a pedestrian progress display in a scramble intersection signal display method (prior art 2).

  Patent Document 3 discloses a method for preventing a pedestrian from ignoring and traversing a child traffic light by shortening the lighting period of the child traffic light controlled in conjunction with the parent traffic light (Prior Art 3).

Patent Document 4 describes a concept of shortening or extending the display time of a green signal on the road of interest according to the progress of the vehicle on the road of interest.
Japanese Patent Laid-Open No. 2003-77090 JP-A-9-81890 JP 57-71099 A JP-A-4-142700

  Prior arts 1 to 3 do not suggest a technique for shortening the signal waiting time of a pedestrian trying to cross the secondary road in consideration of the traffic volume of the vehicle traveling on the secondary road. Patent Document 4 only describes the effect of shortening or extending the green signal display time on the road of interest, and clarifies how each signal lamp at the intersection is operated. Absent.

  The present invention has been made in view of the above problems, and provides a traffic signal display method, a traffic signal display system control device, and a traffic signal display system control program for shortening the signal waiting time of a pedestrian who is going to cross a secondary road. The purpose is to provide.

  The first traffic signal display method of the present invention is a traffic signal that is installed at an intersection where a main road and a secondary road narrower than the main road meet and causes the traffic signal to be displayed on a traffic signal display system that organizes traffic. In the display method, the traffic signal display system includes a signal lamp for a main road vehicle that displays a traffic signal for a vehicle traveling on the main road toward the intersection, and the intersection on the secondary road. A signal lamp for a secondary road vehicle that displays a traffic signal for a vehicle traveling toward the road, and a signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian who is going to cross the secondary road A signal lamp for a secondary road pedestrian that displays a traffic signal to a pedestrian who is going to cross the main road, and the signal display of the signal lamp for the secondary road vehicle is provided for the secondary road pedestrian. Progress with signal lights While the display of the instruction signal continues, the first step of changing from the progress instruction signal display to the stop instruction signal display through the yellow light display, and the signal display of the signal lamp for the main road pedestrian, A second instruction for changing from a stop instruction signal display to a progress instruction signal display while the display of the progress instruction signal by the signal lamp for the secondary road pedestrian is continuing and after the first step is completed. These steps are included.

  Another aspect of the present invention is a control device or program that causes a traffic signal display system to execute the traffic signal display method.

  Compared with the conventional method, the signal display time of the signal lamp for the secondary road vehicle is switched to the stop instruction signal display in each signal period, so the signal waiting time of the pedestrian who tries to cross the secondary road is shortened. be able to. Further, when the method of the present invention is executed at an intersection where the vehicle traffic on the secondary road is small, the smooth progress of the vehicle on the secondary road is not sacrificed.

  The traffic signal display system according to the present invention further comprises a vehicle detector for detecting the presence or absence of a vehicle traveling on the secondary road and entering the intersection, and displaying the signal of the signal lamp for the secondary road vehicle. When the vehicle detector does not detect the vehicle for a predetermined time in the gap detection period starting after the stop instruction signal display is switched to the progress instruction signal display, after a predetermined time elapses after the predetermined time elapses. It is preferable to execute the first step.

  When the time interval for the vehicle on the secondary road entering the intersection to pass through the installation location of the vehicle detector exceeds the predetermined time, the signal display of the signal lamp for the secondary road vehicle becomes the stop instruction signal display. Since the switching timing is advanced, it is possible to further reduce the signal waiting time of a pedestrian trying to cross the secondary road.

  The second traffic signal display method of the present invention is a traffic signal that is installed at an intersection where a main road and a secondary road narrower than the main road meet and causes the traffic signal to be displayed on a traffic signal display system that organizes traffic. In the display method, the traffic signal display system includes a signal lamp for a main road vehicle that displays a traffic signal for a vehicle traveling on the main road toward the intersection, and the intersection on the secondary road. A signal lamp for a secondary road vehicle that displays a traffic signal for a vehicle traveling toward the road, and a signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian who is going to cross the secondary road A traffic light for a secondary road pedestrian that displays a traffic signal to a pedestrian who wants to cross the main road, and a vehicle detector that senses the presence of a vehicle, and the traffic signal display system includes each signal cycle. In The signal display pattern to be performed is that the signal display of the signal lamp for the secondary road vehicle is changed from the progress instruction signal display to the yellow while the display of the progress instruction signal by the signal lamp for the secondary road pedestrian is continued. The first step of changing to the stop instruction signal display through the lamp display, the signal display of the signal lamp for the main road pedestrian, the display of the progress instruction signal by the signal lamp for the secondary road pedestrian continues. A first signal display pattern including a second step of changing from a stop instruction signal display to a progress instruction signal display after the first step is completed, and for the secondary road vehicle And a second signal display pattern in which the signal lamp always displays a stop instruction signal and the signal lamp for the main road pedestrian always displays a progress instruction signal, and the vehicle detector travels on the secondary road. And said A vehicle that is about to enter a difference point is sensed, and when the first signal display pattern is executed in the next signal cycle, the vehicle detector instructs the signal display of the signal lamp for the main road pedestrian to proceed When the vehicle is detected within the vehicle detection period that ends by the timing of switching from the signal display to the blue flashing display, the traffic signal display system executes the first signal display pattern in the next signal cycle, When the vehicle detector does not detect the vehicle within the vehicle detection period, the traffic signal display system is caused to execute the second signal display pattern in the next signal cycle.

  Another aspect of the present invention is a control device or program that causes a traffic signal display system to execute the traffic signal display method.

  When there is no vehicle on the secondary road to enter the intersection, the second signal display pattern is executed in the next signal cycle, and the pedestrian trying to cross the secondary road does not have to wait for the signal. Further, when there is a vehicle on the secondary road that is about to enter the intersection, the first signal display pattern is executed in the next signal cycle, and the vehicle on the secondary road can pass the intersection.

  A third traffic signal display method according to the present invention is a traffic signal that is installed at an intersection where a main road and a secondary road narrower than the main road meet to display a traffic signal on a traffic signal display system that organizes traffic. In the display method, the traffic signal display system includes a signal lamp for a main road vehicle that displays a traffic signal for a vehicle traveling on the main road toward the intersection, and the intersection on the secondary road. A signal lamp for a secondary road vehicle that displays a traffic signal for a vehicle traveling toward the road, and a signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian who is going to cross the secondary road A traffic light for a secondary road pedestrian that displays a traffic signal to a pedestrian who wants to cross the main road, and a vehicle detector that senses the presence of a vehicle, and the traffic signal display system includes each signal cycle. In The signal display pattern to be performed is that the signal display of the signal lamp for the secondary road vehicle is changed from the progress instruction signal display to the yellow while the display of the progress instruction signal by the signal lamp for the secondary road pedestrian is continued. The first step of changing to the stop instruction signal display through the lamp display, the signal display of the signal lamp for the main road pedestrian, the display of the progress instruction signal by the signal lamp for the secondary road pedestrian continues. A first signal display pattern including a second step of changing from a stop instruction signal display to a progress instruction signal display after the first step is completed, and for the secondary road vehicle The signal lamp always displays a stop instruction signal, and the signal display of the main road pedestrian signal lamp at the same timing as the first signal display pattern, from the progress instruction signal display through the blue blinking display, the stop instruction signal The main road pedestrian at the timing when the signal display of the signal light device for the follower pedestrian switches from the stop instruction signal display to the progress instruction signal display following the third step of changing to the display and the third step. And a second signal display pattern including a fourth step of changing the signal display of the signal lamp device from the stop instruction signal display to the travel instruction signal display, and the vehicle detector travels on the secondary road. , Sensing a vehicle that is about to enter the intersection, and the vehicle detector is completed by the time when the fourth step is executed when the second signal display pattern is executed in the next signal cycle When the vehicle is detected within the vehicle sensing period, the traffic signal display system is caused to execute the first signal display pattern in the next signal cycle, When the intelligent device does not detect the vehicle within the vehicle detection period, the traffic signal display system executes the second signal display pattern in the next signal cycle.

  Another aspect of the present invention is a control device or program that causes a traffic signal display system to execute the traffic signal display method.

  The end of the vehicle sensing period in each signal cycle can be made later than in the case of the second traffic signal display method of the present invention. Therefore, compared with the case of the second traffic signal display method of the present invention, the signal waiting time of the vehicle on the secondary road can be shortened.

  ADVANTAGE OF THE INVENTION According to this invention, the traffic signal display method, the traffic signal display system control apparatus, and traffic signal display system control program which shorten the signal waiting time of the pedestrian who is going to cross a secondary road can be provided. In particular, the effect of the present invention is conspicuous at an intersection where the width of the main road is wide, the amount of vehicle traffic on the secondary road is small, and the number of pedestrians crossing the secondary road is large.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  First, the configuration and operation common to the first to third embodiments will be described. FIG. 1 shows a traffic signal display system according to an embodiment and an intersection where the traffic signal display system is installed. At the intersection, a main road R1 with two lanes on one side and a secondary road R2 with one lane on one side intersect. An arrow (1) in FIG. 1 indicates a traveling direction of a vehicle that travels on the main road and enters the intersection, and an arrow (3) indicates a traveling direction of the vehicle that travels on the secondary road and enters the intersection. At the intersection, a pedestrian crossing (indicated by a double arrow (2) in FIG. 1) for a pedestrian to cross the secondary road R2 and a pedestrian crossing (both in FIG. 1) for the pedestrian to cross the main road R1. (Indicated by an arrow (4)).

  The traffic signal system includes signal lamps S1 to S4 for main road vehicles that display traffic signals for vehicles traveling on the main road R1 toward the intersection, and vehicles traveling on the secondary road R2 toward the intersection. On the other hand, signal lights S5 to S8 for secondary road vehicles that display traffic signals, and signal lights S9 to S12 for main road pedestrians that display traffic signals to pedestrians who want to cross the secondary road R2, Signal lamps S13 to S16 for secondary road pedestrians that display traffic signals to pedestrians who want to cross the main road R1. The signal lights for each vehicle display a blue light, a yellow light and a red light. Each pedestrian traffic light will display a blue light, a blue flash and a red light. In addition, the meaning of the traffic signal in this specification is the Road Traffic Law Enforcement Order (December No. 270 of October 11, 1953, final amendment: Dec. 23, 2003 2).

  The traffic signal system includes vehicle detectors D1 and D2 that detect the presence of a vehicle. Existing vehicle sensors can be applied to the vehicle sensor of the present invention. Examples of applicable vehicle detectors include an ultrasonic or infrared generator, an ultrasonic or infrared detector reflected at the location to be measured, and a location at the location to be measured based on the time from generation of ultrasonic or infrared to detection. Some have means for determining the presence or absence of a vehicle.

  The vehicle detectors D1 and D2 determine whether or not there is a vehicle on the secondary road waiting for a signal at the intersection when the secondary road signal lamp displays a red light, and the secondary road vehicle. In order to determine the presence or absence of a vehicle traveling on the road and entering the intersection when the traffic light is displaying a blue light (detecting a gap time of a predetermined length when the vehicle is not sensed) Used. The vehicle detectors D1 and D2 can be installed at a position behind the stop line by an appropriate distance. This distance is set within a range where the vehicle can safely pass through the intersection even if the signal light for road vehicles switches from blue light to yellow light when the gap time has elapsed since the vehicle was last sensed at that position. ing.

  The traffic signal system also includes a control circuit C that controls the operation of each signal lamp according to the detection results of the vehicle detectors D1 and D2. A computer program for operating each signal lamp device at a predetermined timing is installed in the storage unit of the control circuit C.

[First Embodiment]
FIG. 2A is a timing chart showing a time series (for one cycle) of the operation of each signal lamp in the first embodiment. In the traffic signal display system of the first embodiment, this signal display pattern (a round pattern in a signal lamp that operates periodically) is repeated. FIG. 2B is a timing chart showing a time series (for one cycle) of the operation of each signal lamp in the conventional traffic signal display system. In each timing chart of this specification, the uppermost stage is the operation of the signal lamp for the main road vehicle, the second stage is the operation of the signal lamp for the main road pedestrian, and the third stage is the operation of the signal lamp for the secondary road vehicle. The lowermost level corresponds to the operation of the signal lamp for the secondary road pedestrian. In each timing chart, G indicates blue light, PF flashes blue, Y indicates yellow light, and R indicates red light.

  As shown in FIG. 2B, in the conventional traffic signal display system, the signal light for the follower pedestrian and the signal light for the follower vehicle are simultaneously switched to the blue light, but the signal light for the follower pedestrian is the blue light. After the blue light flashes and then changes to a red light, the signal light device for the secondary road vehicle is switched from the blue light to the yellow light. In order for the pedestrian to cross the wide main road, it is necessary to be programmed so that the blue light of the signal light device for the secondary road pedestrian continues for a relatively long time. For this reason, a signal lamp for a secondary road vehicle having a longer blue lighting time will continue the blue lighting longer than necessary. Meanwhile, both signal lights for the main road are red. Therefore, a pedestrian who is going to cross the secondary road is forced to wait for a long time signal, and there is a possibility that the signal may be frustrated and ignored if there is no vehicle traveling on the secondary road.

  As shown in FIG. 2A, in this embodiment, the signal light for the secondary road vehicle changes from the blue light to the red light through the yellow light before the signal light for the secondary road pedestrian switches from blue light to blue flashing. . Further, as soon as the signal lamp for the secondary road vehicle is switched to the red lamp, the signal lamp for the main road pedestrian is switched to the blue lamp. Therefore, a pedestrian who wants to cross the secondary road can cross the secondary road even while the signal lamp for the secondary road pedestrian is in blue light. As a result, the signal waiting time of a pedestrian who tries to cross the secondary road is shortened.

  When a predetermined minimum blue lighting time that starts when each signal lamp for a secondary road is switched to blue lighting has elapsed, a state in which the vehicle detectors D1 and D2 do not detect the vehicle continues for a gap time (see FIG. 2A). The control circuit C immediately switches the signal lights for the follower vehicles to yellow lights, and then the main roads after the signal lights for the follower vehicles are switched from yellow lights to red lights. Switch the signal light for pedestrians from red to blue. However, even if the vehicle is continuously detected within the cap time, the signal lamp for the follower vehicle is switched to the yellow lamp when the predetermined maximum blue lamp time has elapsed. This operation further shortens the signal waiting time of a pedestrian who is going to cross the secondary road.

[Second Embodiment]
3A to 3C are timing charts showing the time series (for three cycles) of the operation of each signal lamp in the second embodiment. In the second embodiment, two signal display patterns, a first signal display pattern and a second signal display pattern, are executed. FIG. 3A shows a timing chart (background step) when the first signal display pattern is repeated. FIG. 3B shows a timing chart when the second signal display pattern is executed in the first period, the first signal display pattern is executed in the second period, and the second signal display pattern is executed in the third period. FIG. 3C shows a timing chart when the second signal display pattern is executed in the first and second periods and the first signal display pattern is executed in the third period.

  The control circuit C always performs the background step, but causes each signal lamp to execute the second signal display pattern instead of the background step according to the detection results of the vehicle detectors D1 and D2.

  The first signal display pattern is the same as the signal display pattern in the first embodiment. The operation of the signal lamp for the main road vehicle and the signal lamp for the secondary road pedestrian in the second signal display pattern is the same as the operation in the first signal display pattern. In the second signal display pattern, the signal lamp for the secondary road vehicle is always red, and the signal lamp for the main road pedestrian is always blue.

  When the second signal display pattern is executed in a certain period, the main road pedestrian walks in the background step in the next period from the timing at which the signal lamp for the main road pedestrian switches from blue light to blinking blue in the background step. The period until the signal lamp for the person switches from blue light to blue flashing is the vehicle sensing period of the cycle. On the other hand, when the first signal display pattern is executed in a certain period, the main step is performed in the background step in the next period from the timing of gap detection or the timing when the signal lamp for the secondary road vehicle switches from blue light to yellow light. The vehicle detection period of the cycle is from the timing when the signal lamp for road pedestrians switches from blue light to blue flashing.

  When the vehicle is detected by the vehicle detectors D1 and D2 within the vehicle detection period of a certain cycle, a signal display according to the background step is performed in the next cycle. That is, the first signal display pattern is executed. On the other hand, when the vehicle is not detected by the vehicle detectors D1 and D2 within the vehicle detection period of a certain cycle, the second signal display pattern is executed in the next cycle.

  In the example of FIG. 3B, since the vehicle was detected during the vehicle detection period of the first cycle, the first signal display pattern was executed in the second cycle. Since no vehicle was detected during the vehicle detection period of the second cycle, the second signal display pattern was executed in the third cycle.

  In the example of FIG. 3C, the timing at which the vehicle is sensed deviates during the vehicle sensing period of the second period, and the vehicle is not sensed during the vehicle sensing period of the first period. And the first signal display pattern was executed in the third period.

[Third Embodiment]
In the second embodiment, the second signal display pattern is executed according to the detection results of the vehicle detectors D1 and D2, so that the signal waiting time of a pedestrian trying to cross the secondary road becomes shorter. . However, since the end of the vehicle detection period is set to an early time of the next cycle, when the vehicle detection timing is shifted to the next vehicle detection period as in the example of FIG. There is a disadvantage that you have to wait for a long time. The third embodiment overcomes the disadvantages of the second embodiment.

  4A to 4C are timing charts showing a time series (for three cycles) of the operation of each signal lamp in the third embodiment. Note that the vehicle detection timing in FIGS. 4B and 4C is the same as the vehicle detection timing in FIGS. 3B and 3C. In the second signal display pattern of the third embodiment, the signal lamp for the main road pedestrian changes from blue light to blue light through blue flashing at the same timing as the background step. The red light of the signal lamp for the main road pedestrian continues for a short time, and the red lamp is switched to the blue lamp at the same timing as the signal lamp for the secondary road pedestrian.

  When the second signal display pattern is executed in a certain cycle, the background signal is followed by the background step in the next cycle from the timing when the signal lamp for the main road pedestrian switches from the red light to the blue light in the second signal display pattern. The period until the timing when the signal lamp for road pedestrians switches from red light to blue light is the vehicle sensing period of the cycle. On the other hand, when the first signal display pattern is executed in a certain cycle, the background step is performed in the next cycle from the timing of gap detection or the timing when the signal lamp for the secondary road vehicle switches from blue to yellow. The period until the timing when the signal lamp for road pedestrians switches from red light to blue light is the vehicle sensing period of the cycle.

  The traffic signal display system of the third embodiment operates in the same manner as in the second embodiment except for the above points.

  In the example of FIG. 4B, as in the example of FIG. 3B, since the vehicle was detected during the vehicle detection period of the first cycle, the first signal display pattern was executed in the second cycle. Since no vehicle was detected during the vehicle detection period of the second cycle, the second signal display pattern was executed in the third cycle.

  In the example of FIG. 4C, the vehicle detection timing is the same as in the example of FIG. 3C, but the vehicle was detected within the vehicle detection period of the first cycle because the end of the vehicle detection period of the first cycle was late. Therefore, the operation was the same as the example of FIG. 4B.

  Thus, in the third embodiment, since the end of the vehicle sensing period of each cycle is later than in the second embodiment, the signal waiting time of the vehicle sensed slightly later than the end of the vehicle sensing period is shortened. can do.

  In each of the above embodiments, the intersection is a cross road, but the present invention can also be applied to a T-shaped road or a Y-shaped road where the road follows the main road. In addition, in order to prevent pedestrians ignoring signals from crossing the main road during times of low traffic on the main road, the operation of the signal light for the main road and the operation of the signal light for the secondary road are switched. It is also conceivable to apply the present invention.

  It can be used for traffic control at intersections.

FIG. 1 shows a traffic signal display system according to an embodiment and an intersection where the traffic signal display system is installed. FIG. 2A is a timing chart showing a time series (for one cycle) of the operation of each signal lamp in the first embodiment. FIG. 2B is a timing chart showing a time series (for one cycle) of the operation of each signal lamp in the conventional traffic signal display system. 3A to 3C are timing charts showing the time series (for three cycles) of the operation of each signal lamp in the second embodiment. 4A to 4C are timing charts showing a time series (for three cycles) of the operation of each signal lamp in the third embodiment.

Explanation of symbols

  R1 ... main road, R2 ... secondary road, C ... control circuit, D1, D2 ... vehicle detectors, S1 to S4 ... signal lamps for main road vehicles, S5 to S8 ...・ Signal lamps for secondary road vehicles, S9 to S12 ... Signal lamps for main road pedestrians, S13 to S16 ... Signal lamps for secondary road pedestrians, G ... blue light display, PF -Blue blinking display, Y ... yellow light display, R ... red light display.

Claims (13)

A traffic signal display method for displaying a traffic signal on a traffic signal display system installed at an intersection where a main road and a secondary road narrower than the main road meet,
The traffic signal display system includes:
A signal lamp for a main road vehicle for displaying a traffic signal for a vehicle traveling on the main road toward the intersection;
A signal lamp for a slave vehicle that displays a traffic signal for the vehicle traveling on the slave road toward the intersection;
A signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian trying to cross the secondary road;
A signal lamp for a secondary road pedestrian that displays a traffic signal for a pedestrian trying to cross the main road,
The signal indication of the signal lamp for the secondary road vehicle is stopped from the progress indication signal display through the yellow lamp display while the display of the progress indication signal by the signal lamp for the secondary road pedestrian is continued. A first step of changing to a display;
The signal display of the signal lamp for the main road pedestrian, while the display of the progress instruction signal by the signal lamp for the secondary road pedestrian is continuing and after the first step is completed, A traffic signal display method comprising: a second step of changing from a stop instruction signal display to a progress instruction signal display. The traffic signal display system further includes a vehicle detector that detects whether or not there is a vehicle traveling on the secondary road and entering the intersection.
In the gap detection period starting after the signal display of the signal lamp for the secondary road vehicle is switched from the stop instruction signal display to the progress instruction signal display, when the vehicle detector does not detect the vehicle for a predetermined time, the predetermined 2. The traffic signal display method according to claim 1, wherein the first step is executed when the time elapses or when another predetermined time elapses thereafter. A traffic signal display method for displaying a traffic signal on a traffic signal display system installed at an intersection where a main road and a secondary road narrower than the main road meet,
The traffic signal display system includes:
A signal lamp for a main road vehicle for displaying a traffic signal for a vehicle traveling on the main road toward the intersection;
A signal lamp for a slave vehicle that displays a traffic signal for the vehicle traveling on the slave road toward the intersection;
A signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian trying to cross the secondary road;
A signal light device for a secondary road pedestrian that displays a traffic signal for a pedestrian who wants to cross the main road, and a vehicle detector for detecting the presence of the vehicle,
The signal display pattern that the traffic signal display system executes in each signal period is:
The signal indication of the signal lamp for the secondary road vehicle is stopped from the progress indication signal display through the yellow lamp display while the display of the progress indication signal by the signal lamp for the secondary road pedestrian is continued. The first step of changing to display and the signal display of the signal lamp for the main road pedestrian is in the middle of the display of the progress instruction signal by the signal lamp for the secondary road pedestrian, and A first signal display pattern including a second step of changing from a stop instruction signal display to a progress instruction signal display after the first step is completed;
The secondary road vehicle signal lamp always displays a stop instruction signal, and the main road pedestrian signal lamp always displays a travel instruction signal, and the vehicle sensor includes: Proceeding on the secondary road, sensing a vehicle entering the intersection,
When the vehicle sensor detects that the first signal display pattern is executed in the next signal cycle, the signal display of the signal lamp for the main road pedestrian switches from the progress instruction signal display to the blue blinking display. When the vehicle is sensed within the vehicle sensing period to end, the traffic signal display system executes the first signal display pattern in the next signal cycle,
A traffic signal display that causes the traffic signal display system to execute the second signal display pattern in the next signal cycle when the vehicle sensor does not detect a vehicle within the vehicle detection period. Method. A traffic signal display method for displaying a traffic signal on a traffic signal display system installed at an intersection where a main road and a secondary road narrower than the main road meet,
The traffic signal display system includes:
A signal lamp for a main road vehicle for displaying a traffic signal for a vehicle traveling on the main road toward the intersection;
A signal lamp for a slave vehicle that displays a traffic signal for the vehicle traveling on the slave road toward the intersection;
A signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian trying to cross the secondary road;
A signal light device for a secondary road pedestrian that displays a traffic signal for a pedestrian who wants to cross the main road, and a vehicle detector for detecting the presence of the vehicle,
The signal display pattern that the traffic signal display system executes in each signal period is:
The signal indication of the signal lamp for the secondary road vehicle is stopped from the progress indication signal display through the yellow lamp display while the display of the progress indication signal by the signal lamp for the secondary road pedestrian is continued. The first step of changing to display and the signal display of the signal lamp for the main road pedestrian is in the middle of the display of the progress instruction signal by the signal lamp for the secondary road pedestrian, and A first signal display pattern including a second step of changing from a stop instruction signal display to a progress instruction signal display after the first step is completed;
The signal lamp for the secondary road vehicle always displays a stop instruction signal, and the signal display of the signal lamp for the main road pedestrian is flashed in blue from the progress instruction signal display at the same timing as the first signal display pattern. After the third step to change to the stop instruction signal display after the third step, at the timing when the signal display of the signal light device for the follower pedestrian switches from the stop instruction signal display to the progress instruction signal display, A second signal display pattern including a fourth step of changing the signal display of the signal lamp for the main road pedestrian from the stop instruction signal display to the progress instruction signal display,
Let the vehicle detector sense a vehicle traveling on the secondary road and entering the intersection;
When the vehicle sensor senses a vehicle within a vehicle sensing period that ends by the timing when the fourth step is executed when the second signal display pattern is executed in the next signal cycle. , Causing the traffic signal display system to execute the first signal display pattern in the next signal period,
A traffic signal display that causes the traffic signal display system to execute the second signal display pattern in the next signal cycle when the vehicle sensor does not detect a vehicle within the vehicle detection period. Method. During execution of the first signal display pattern, in the gap detection period that starts after the signal display of the signal lamp for the secondary road vehicle is switched from the stop instruction signal display to the progress instruction signal display, the vehicle sensor is operated for a predetermined time. 5. The traffic signal display method according to claim 3, wherein the timing at which the first step is executed is advanced when no signal is detected. An apparatus for controlling a traffic signal display system that is installed at an intersection where a main road and a secondary road narrower than the main road meet, and that displays a traffic signal on a traffic signal display system that organizes traffic,
The traffic signal display system includes:
A signal lamp for a main road vehicle for displaying a traffic signal for a vehicle traveling on the main road toward the intersection;
A signal lamp for a slave vehicle that displays a traffic signal for the vehicle traveling on the slave road toward the intersection;
A signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian trying to cross the secondary road;
A signal lamp for a secondary road pedestrian that displays a traffic signal for a pedestrian trying to cross the main road,
The signal indication of the signal lamp for the secondary road vehicle is stopped from the progress indication signal display through the yellow lamp display while the display of the progress indication signal by the signal lamp for the secondary road pedestrian is continued. A first procedure for changing to a display;
The signal display of the signal lamp for the main road pedestrian is in the middle of the display of the progress instruction signal by the signal lamp for the secondary road pedestrian and after the first procedure is finished, A traffic signal display system control apparatus that causes the traffic signal display system to execute a second procedure for changing from a stop instruction signal display to a progress instruction signal display. An apparatus for controlling a traffic signal display system that is installed at an intersection where a main road and a secondary road narrower than the main road meet, and that displays a traffic signal on a traffic signal display system that organizes traffic,
The traffic signal display system includes:
A signal lamp for a main road vehicle for displaying a traffic signal for a vehicle traveling on the main road toward the intersection;
A signal lamp for a slave vehicle that displays a traffic signal for the vehicle traveling on the slave road toward the intersection;
A signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian trying to cross the secondary road;
A signal light device for a secondary road pedestrian that displays a traffic signal for a pedestrian who wants to cross the main road, and a vehicle detector for detecting the presence of the vehicle,
The signal display pattern that the traffic signal display system executes in each signal period is:
The signal indication of the signal lamp for the secondary road vehicle is stopped from the progress indication signal display through the yellow lamp display while the display of the progress indication signal by the signal lamp for the secondary road pedestrian is continued. The first procedure to change the display and the signal display of the signal lamp for the main road pedestrian is in the process of displaying the progress instruction signal by the signal lamp for the secondary road pedestrian, and A first signal display pattern including a second procedure for changing from a stop instruction signal display to a progress instruction signal display after the first procedure is completed;
The secondary road vehicle signal lamp always displays a stop instruction signal, and the main road pedestrian signal lamp always displays a travel instruction signal, and a second signal display pattern,
Let the vehicle detector sense a vehicle traveling on the secondary road and entering the intersection;
When the vehicle sensor detects that the first signal display pattern is executed in the next signal cycle, the signal display of the signal lamp for the main road pedestrian switches from the progress instruction signal display to the blue blinking display. When the vehicle is sensed within the vehicle sensing period to end, the traffic signal display system executes the first signal display pattern in the next signal cycle,
A traffic signal display that causes the traffic signal display system to execute the second signal display pattern in the next signal cycle when the vehicle sensor does not detect a vehicle within the vehicle detection period. system control unit. An apparatus for controlling a traffic signal display system that is installed at an intersection where a main road and a secondary road narrower than the main road meet, and that displays a traffic signal on a traffic signal display system that organizes traffic,
The traffic signal display system includes:
A signal lamp for a main road vehicle for displaying a traffic signal for a vehicle traveling on the main road toward the intersection;
A signal lamp for a slave vehicle that displays a traffic signal for the vehicle traveling on the slave road toward the intersection;
A signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian trying to cross the secondary road;
A signal light device for a secondary road pedestrian that displays a traffic signal for a pedestrian who wants to cross the main road, and a vehicle detector for detecting the presence of the vehicle,
The signal display pattern that the traffic signal display system executes in each signal period is:
The signal indication of the signal lamp for the secondary road vehicle is stopped while the display of the progress indication signal by the signal lamp for the secondary road pedestrian is continued through the yellow lamp display from the progress indication signal display. The first procedure to change the display and the signal display of the signal lamp for the main road pedestrian is in the process of displaying the progress instruction signal by the signal lamp for the secondary road pedestrian, and A first signal display pattern including a second procedure for changing from a stop instruction signal display to a progress instruction signal display after the first procedure is completed;
The signal lamp for the secondary road vehicle always displays a stop instruction signal, and the signal display of the signal lamp for the main road pedestrian is flashed in blue from the progress instruction signal display at the same timing as the first signal display pattern. Subsequently to the third procedure for changing to the stop instruction signal display, and following the third procedure, at the timing when the signal display of the signal light device for the follower pedestrian switches from the stop instruction signal display to the progress instruction signal display, A second signal display pattern including a fourth procedure for changing the signal display of the signal lamp for the main road pedestrian from the stop instruction signal display to the travel instruction signal display,
Let the vehicle detector sense a vehicle traveling on the secondary road and entering the intersection;
When the vehicle sensor senses a vehicle within a vehicle sensing period that ends by the timing when the fourth procedure is executed when the second signal display pattern is executed in the next signal cycle. , Causing the traffic signal display system to execute the first signal display pattern in the next signal period,
A traffic signal display that causes the traffic signal display system to execute the second signal display pattern in the next signal cycle when the vehicle sensor does not detect a vehicle within the vehicle detection period. system control unit. The traffic signal display system further includes a vehicle detector that detects whether or not there is a vehicle traveling on the secondary road and entering the intersection.
In the gap detection period starting after the signal display of the signal lamp for the secondary road vehicle is switched from the stop instruction signal display to the progress instruction signal display, when the vehicle detector does not detect the vehicle for a predetermined time, the predetermined The traffic signal display system control device according to claim 6, wherein the traffic signal display system is caused to execute the first procedure when the time elapses or when another predetermined time elapses thereafter. . During execution of the first signal display pattern, in the gap detection period that starts after the signal display of the signal lamp for the secondary road vehicle is switched from the stop instruction signal display to the progress instruction signal display, the vehicle sensor is operated for a predetermined time. The traffic signal display system control device according to claim 7 or 8, characterized in that the timing at which the first procedure is executed is advanced when no signal is detected. A traffic signal display system control program for displaying a traffic signal on a traffic signal display system installed at an intersection where a main road and a secondary road narrower than the main road meet each other,
The traffic signal display system includes:
A signal lamp for a main road vehicle for displaying a traffic signal for a vehicle traveling on the main road toward the intersection;
A signal lamp for a slave vehicle that displays a traffic signal for the vehicle traveling on the slave road toward the intersection;
A signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian trying to cross the secondary road;
A signal lamp for a secondary road pedestrian that displays a traffic signal for a pedestrian trying to cross the main road,
The signal indication of the signal lamp for the secondary road vehicle is stopped from the progress indication signal display through the yellow lamp display while the display of the progress indication signal by the signal lamp for the secondary road pedestrian is continued. A first procedure for changing to a display;
The signal display of the signal lamp for the main road pedestrian is in the middle of the display of the progress instruction signal by the signal lamp for the secondary road pedestrian and after the first procedure is finished, A traffic signal display system control program for causing the traffic signal display system to execute a second procedure for changing from a stop instruction signal display to a progress instruction signal display. A traffic signal display system control program for displaying a traffic signal on a traffic signal display system installed at an intersection where a main road and a secondary road narrower than the main road meet each other,
The traffic signal display system includes:
A signal lamp for a main road vehicle for displaying a traffic signal for a vehicle traveling on the main road toward the intersection;
A signal lamp for a slave vehicle that displays a traffic signal for the vehicle traveling on the slave road toward the intersection;
A signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian trying to cross the secondary road;
A signal light device for a secondary road pedestrian that displays a traffic signal for a pedestrian who wants to cross the main road, and a vehicle detector for detecting the presence of the vehicle,
The signal display pattern that the traffic signal display system executes in each signal period is:
The signal indication of the signal lamp for the secondary road vehicle is stopped from the progress indication signal display through the yellow lamp display while the display of the progress indication signal by the signal lamp for the secondary road pedestrian is continued. The first procedure to change the display and the signal display of the signal lamp for the main road pedestrian is in the process of displaying the progress instruction signal by the signal lamp for the secondary road pedestrian, and A first signal display pattern including a second procedure for changing from a stop instruction signal display to a progress instruction signal display after the first procedure is completed;
The secondary road vehicle signal lamp always displays a stop instruction signal, and the main road pedestrian signal lamp always displays a travel instruction signal, and a second signal display pattern,
Let the vehicle detector sense a vehicle traveling on the secondary road and entering the intersection;
When the vehicle sensor detects that the first signal display pattern is executed in the next signal cycle, the signal display of the signal lamp for the main road pedestrian switches from the progress instruction signal display to the blue blinking display. When the vehicle is sensed within the vehicle sensing period to end, the traffic signal display system executes the first signal display pattern in the next signal cycle,
A traffic signal display that causes the traffic signal display system to execute the second signal display pattern in the next signal cycle when the vehicle sensor does not detect a vehicle within the vehicle detection period. System control program. A traffic signal display system control program for displaying a traffic signal on a traffic signal display system installed at an intersection where a main road and a secondary road narrower than the main road meet each other,
The traffic signal display system includes:
A signal lamp for a main road vehicle for displaying a traffic signal for a vehicle traveling on the main road toward the intersection;
A signal lamp for a slave vehicle that displays a traffic signal for the vehicle traveling on the slave road toward the intersection;
A signal lamp for a main road pedestrian that displays a traffic signal for a pedestrian trying to cross the secondary road;
A signal light device for a secondary road pedestrian that displays a traffic signal for a pedestrian who wants to cross the main road, and a vehicle detector for detecting the presence of the vehicle,
The signal display pattern that the traffic signal display system executes in each signal period is:
The signal indication of the signal lamp for the secondary road vehicle is stopped from the progress indication signal display through the yellow lamp display while the display of the progress indication signal by the signal lamp for the secondary road pedestrian is continued. The first procedure to change the display and the signal display of the signal lamp for the main road pedestrian is in the process of displaying the progress instruction signal by the signal lamp for the secondary road pedestrian, and A first signal display pattern including a second procedure for changing from a stop instruction signal display to a progress instruction signal display after the first procedure is completed;
The signal lamp for the secondary road vehicle always displays a stop instruction signal, and the signal display of the signal lamp for the main road pedestrian is flashed in blue from the progress instruction signal display at the same timing as the first signal display pattern. Subsequently to the third procedure for changing to the stop instruction signal display, and following the third procedure, at the timing when the signal display of the signal light device for the follower pedestrian switches from the stop instruction signal display to the progress instruction signal display, A second signal display pattern including a fourth procedure for changing the signal display of the signal lamp for the main road pedestrian from the stop instruction signal display to the travel instruction signal display,
Let the vehicle detector sense a vehicle traveling on the secondary road and entering the intersection;
When the vehicle sensor senses a vehicle within a vehicle sensing period that ends by the timing when the fourth procedure is executed when the second signal display pattern is executed in the next signal cycle. , Causing the traffic signal display system to execute the first signal display pattern in the next signal period,
A traffic signal display that causes the traffic signal display system to execute the second signal display pattern in the next signal cycle when the vehicle sensor does not detect a vehicle within the vehicle detection period. System control program.

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