CN113674542A - Overflow control method and device and electronic equipment - Google Patents
Overflow control method and device and electronic equipment Download PDFInfo
- Publication number
- CN113674542A CN113674542A CN202111109487.3A CN202111109487A CN113674542A CN 113674542 A CN113674542 A CN 113674542A CN 202111109487 A CN202111109487 A CN 202111109487A CN 113674542 A CN113674542 A CN 113674542A
- Authority
- CN
- China
- Prior art keywords
- length
- road section
- traffic
- phase
- vehicles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/081—Plural intersections under common control
Abstract
The invention provides an overflow control method, an overflow control device and electronic equipment, and relates to the technical field of traffic control. The specific implementation scheme is as follows: detecting whether the length of an unparked road section in an exit road section of the traffic intersection is smaller than a specified length or not; wherein; the specified length is the length that the maximum queuing number is not less than the target travelling crane number, and the target travelling crane number is the maximum travelling crane number in the specified length and the travelling crane length in the traffic intersection; when the length is smaller than the specified length, determining whether a first traffic flow direction of the driving-in exit road section is included in the first phase; wherein the first phase is: signal lamp phase of the traffic intersection at the current moment; if the first phase is contained, the signal lamp for controlling the first traffic flow direction is switched from the passing state to the non-passing state within the remaining time of the first phase. By the scheme of the invention, the traffic overflow phenomenon can be relieved.
Description
Technical Field
The present invention relates to the field of traffic control technologies, and in particular, to an overflow control method and apparatus, and an electronic device.
Background
The phenomenon that the vehicles in line exceed the range of the road section due to overlarge traffic volume, improper traffic light timing and the like is called traffic overflow phenomenon. The occurrence of the traffic overflow phenomenon often causes the spreading of traffic jam in a traffic network, so that the traffic efficiency in the traffic network is low.
In the related art, in order to alleviate the traffic overflow phenomenon, an overflow control scheme is often formulated in advance, and after the traffic overflow phenomenon occurs in a traffic network, the pre-formulated overflow control scheme is always executed for a period of time until the overflow is alleviated.
However, the overflow control scheme in the related art does not consider the fluctuation of the traffic flow, and cannot effectively alleviate the occurrence of the traffic overflow phenomenon.
Disclosure of Invention
An embodiment of the invention provides an overflow control method, an overflow control device and electronic equipment, so as to alleviate the occurrence of a traffic overflow phenomenon. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides an overflow control method, where the method includes:
detecting whether the length of an unparked road section in an exit road section of the traffic intersection is smaller than a specified length or not; wherein; the specified length is the length that the maximum queuing number is not less than the target travelling crane number, and the target travelling crane number is the maximum travelling crane number in the specified length and the travelling crane length in the traffic intersection;
when the length is smaller than the specified length, determining whether a first traffic direction driving into the exit road section is included in the first phase; wherein the first phase is: the signal lamp phase of the traffic intersection at the current moment;
if yes, controlling the signal lamp in the first traffic flow direction to be switched from the first state to the second state within the remaining duration of the first phase; the first state is a passing state, and the second state is a non-passing state.
Optionally, after determining whether the first phase includes the first traffic direction entering the exit road segment, the method further includes:
determining whether a second flow direction into the exit leg is included in the second phase; wherein the second phase is a next signal lamp phase of the first phase;
if the traffic signal is contained in the first phase, controlling the state of the signal lamp in the second traffic direction to be the non-passing state within the phase duration of the second phase after the execution of the first phase is finished.
Optionally, a queuing threshold point is set at a position, away from the traffic intersection, by the specified length in the exit road section;
the detecting whether the length of the section of the exit road without parking is smaller than a specified length includes:
and when the queuing vehicles are detected to stop at the queuing threshold point, judging that the length of the section of the exit road without parking is less than the specified length, otherwise, judging that the length of the section of the exit road without parking is not less than the specified length.
Optionally, the maximum queuing number is:
wherein N issFor said maximum number of queues, LcFor the specified length, Sv,sThe distance between the heads of the adjacent vehicles when the vehicles are queued;
the target driving quantity is as follows:
wherein N isdFor the target number of vehicles, LaIs the length of the traffic in the traffic intersection, Sv,dThe distance between the heads of the adjacent vehicles when the vehicles run.
Optionally, before detecting whether the length of the section of the road without parking in the exit section of the traffic intersection is less than the specified length, the method further includes:
and when the exit road section is detected to be the overflow risk road section, executing the step of detecting whether the length of the section which is not parked in the exit road section of the traffic intersection is smaller than the specified length.
Optionally, the manner of detecting whether the exit road section is the overflow risk road section is as follows:
after the downstream road section of the exit road section executes the action of controlling the entering traffic flow, determining the number of vehicles which travel from the exit road section to the downstream road section within a first preset time period;
judging whether the number of the vehicles meets a preset overflow risk condition or not;
and if so, judging that the outlet road section is an overflow risk road section.
Optionally, the determining the number of vehicles traveling from the exit road section to the downstream road section within the first preset time period includes:
acquiring first vehicle passing information of the downstream road section and second vehicle passing information of the exit road section;
and determining the number of vehicles which are driven to the downstream road section from the exit road section within a first preset time period on the basis of the first vehicle passing information and the second vehicle passing information.
Optionally, the determining, based on the first vehicle passing information and the second vehicle passing information, the number of vehicles traveling from the exit road section to the downstream road section within a first preset time period includes:
acquiring first vehicle information of vehicles running in the downstream road section within a first preset time period based on the first vehicle passing information;
acquiring second vehicle information of vehicles running in the exit road section within a second preset time period before the second vehicle passing information is acquired; the second preset time length is longer than the first preset time length;
determining the number of vehicles of which the first vehicle information is matched with the second vehicle information as the number of vehicles driving to the downstream road section from the exit road section within the first preset time period.
Optionally, the determining whether the number of vehicles meets a preset overflow risk condition includes:
determining a first driving quantity of the downstream road section within a first preset time length on the basis of the first vehicle passing information, and determining a second driving quantity of the exit road section within a second preset time length on the basis of the second vehicle passing information; the second preset time length is longer than the first preset time length;
calculating a first ratio of the number of vehicles to the first number of traveling vehicles, and calculating a second ratio of the number of vehicles to the second number of traveling vehicles;
and when the first ratio is greater than a first preset threshold value and the second ratio is greater than a second preset threshold value, determining that the number of vehicles meets a preset overflow risk condition.
In a second aspect, an embodiment of the present invention provides an overflow control device, including:
the length detection module is used for detecting whether the length of an unparked road section in an exit road section of the traffic intersection is smaller than a specified length or not; wherein; the specified length is the length that the maximum queuing number is not less than the target travelling crane number, and the target travelling crane number is the maximum travelling crane number in the specified length and the travelling crane length in the traffic intersection;
the traffic flow direction determining module is used for determining whether a first traffic flow direction driving into the exit road section is included in a first phase when the length is smaller than the specified length; wherein the first phase is: the signal lamp phase of the traffic intersection at the current moment;
the vehicle driving-in prohibition module is used for controlling the signal lamp in the first traffic flow direction to be switched from the first state to the second state within the remaining duration of the first phase if the vehicle driving-in prohibition module is included; the first state is a passing state, and the second state is a non-passing state.
In a third aspect, an embodiment of the present invention provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor and the communication interface complete communication between the memory and the processor through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps of any of the first aspect when executing a program stored in the memory.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements the method steps of any one of the first aspect.
The embodiment of the invention has the following beneficial effects:
according to the overflow control method provided by the embodiment of the invention, when the length of the section without parking in the exit section of the traffic intersection is detected to be smaller than the specified length, and the phase of the signal lamp of the traffic intersection at the current moment comprises the first traffic flow direction of driving into the exit section, the signal lamp in the first traffic flow direction can be controlled to be switched from the passing state to the non-passing state within the remaining duration of the first phase, so that a new vehicle is prevented from driving into the exit section. Meanwhile, the specified length is the length that the maximum queuing number is not less than the target traffic number, and the target traffic number is the maximum traffic number within the specified length and the traffic length in the traffic intersection, which means that even if there is a running vehicle within the specified length and the traffic length in the traffic intersection before the signal lamp in the first traffic direction is switched to the non-passing state, after the signal lamp in the first traffic direction is switched to the non-passing state, the remaining running vehicles within the length of the section are queued and stopped at the exit section, and cannot exceed the range of the exit section.
Of course, not all of the above advantages need be achieved in the practice of any one product or method of the present invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by referring to these drawings.
FIG. 1 is a schematic view of an intersection provided by an embodiment of the present invention;
FIG. 2 is a flow chart illustrating an overflow control method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an intersection with queuing threshold points according to an embodiment of the present invention;
FIG. 4 is a schematic phase diagram according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating a first phase adjustment according to an embodiment of the present invention;
FIG. 6 is a flow chart illustrating another overflow control method according to an embodiment of the present invention;
FIG. 7 is a diagram illustrating a second phase adjustment according to an embodiment of the present invention;
FIG. 8 is a flow chart illustrating another overflow control method according to an embodiment of the present invention;
fig. 9 is a schematic diagram of determining an overflow risk section according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of an overflow control device according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived from the embodiments given herein by one of ordinary skill in the art, are within the scope of the invention.
In order to more clearly illustrate the technical solution of the embodiment of the present invention, a general technical term in the traffic control technical field is first described, including:
traffic bottleneck: refers to a road segment or a node causing traffic congestion propagation or spread in a road network. For example, a section of a traffic jam, a location point where a traffic accident occurs, etc.;
traffic overflow: the phenomenon that the vehicles in line exceed the range of the road section due to overlarge traffic volume, improper timing and the like is avoided. For example, the maximum number of stops for a certain road segment is N. At a certain moment, after the road section is full of N vehicles, a new vehicle drives into the road section, and the new vehicle can only stop outside the range of the road section because the road section is full of vehicles.
As shown in fig. 1, a schematic view of an intersection is shown. Including traffic intersection a and traffic intersection B, as well as road segment 1, road segment 2, road segment 3, road segment 4, road segment 5, road segment 6, road segment 7, and road segment 8. Where, road segment 2, road segment 4, road segment 6, and road segment 8 are exit road segments of traffic intersection a, and correspondingly, road segment 1, road segment 3, road segment 5, and road segment 7 are entry road segments of traffic intersection a. The vehicles drive into the traffic intersection from the entrance road section and then drive into the exit road section from the traffic intersection.
In the running process of a traffic network, the phenomenon that vehicles in line exceed the range of a road section due to the reasons of overlarge traffic volume, improper traffic light timing and the like is called as a traffic overflow phenomenon. As in the above figure, if the vehicles queued in the section 2 are out of the range of the section 2, the traffic overflow phenomenon occurs in the section 2. The occurrence of the traffic overflow phenomenon often causes the spreading of traffic jam in a traffic network, so that the traffic efficiency in the traffic network is low.
In the related art, in order to alleviate the traffic overflow phenomenon, an overflow control scheme is often formulated in advance, and after the traffic overflow phenomenon occurs in a traffic network, the pre-formulated overflow control scheme is always executed for a period of time until the overflow is alleviated.
However, the overflow control scheme in the related art does not consider the fluctuation of the traffic flow, and cannot effectively alleviate the occurrence of the traffic overflow phenomenon.
In order to alleviate the occurrence of the traffic overflow phenomenon, an embodiment of the invention provides an overflow control method.
It should be noted that, in a specific application, the overflow control method provided by the embodiment of the present invention can be applied to various electronic devices, for example, a personal computer, a server, and other devices with data processing capability. In addition, it can be understood that the model training method provided by the embodiment of the present invention can be implemented by software, hardware, or a combination of software and hardware. In an embodiment, the overflow control method provided by the invention can be applied to control equipment of a traffic intersection or a control center of intelligent traffic.
The overflow control method provided by the embodiment of the invention can comprise the following steps:
detecting whether the length of an unparked road section in an exit road section of the traffic intersection is smaller than a specified length or not; wherein; the specified length is the length that the maximum queuing number is not less than the target travelling crane number, and the target travelling crane number is the maximum travelling crane number in the specified length and the travelling crane length in the traffic intersection;
when the length is smaller than the specified length, determining whether a first traffic flow direction of the driving-in exit road section is included in the first phase; wherein the first phase is: signal lamp phase of the traffic intersection at the current moment;
if the first phase is contained, the signal lamp for controlling the first traffic flow direction is switched from the passing state to the non-passing state within the remaining time of the first phase.
According to the overflow control method provided by the embodiment of the invention, when the length of the section without parking in the exit section of the traffic intersection is detected to be smaller than the specified length, and the phase of the signal lamp of the traffic intersection at the current moment comprises the first traffic flow direction of driving into the exit section, the signal lamp in the first traffic flow direction can be controlled to be switched from the passing state to the non-passing state within the remaining duration of the first phase, so that a new vehicle is prevented from driving into the exit section. Meanwhile, the specified length is the length that the maximum queuing number is not less than the target traffic number, and the target traffic number is the maximum traffic number within the specified length and the traffic length in the traffic intersection, which means that even if there is a running vehicle within the specified length and the traffic length in the traffic intersection before the signal lamp in the first traffic direction is switched to the non-passing state, after the signal lamp in the first traffic direction is switched to the non-passing state, the remaining running vehicles within the length of the section are queued and stopped at the exit section, and cannot exceed the range of the exit section.
An overflow control method provided by an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 2, an embodiment of the present invention provides an overflow control method, which may include the following steps:
s201, detecting whether the length of an unparked road section in an exit road section of a traffic intersection is smaller than a specified length; wherein; the specified length is the length that the maximum queuing number is not less than the target travelling crane number, and the target travelling crane number is the maximum travelling crane number in the specified length and the travelling crane length in the traffic intersection;
wherein, the length of the section of the exit road without parking can be: the road segment length of the exit road segment minus the length of the vehicles in line within the exit road segment. Taking fig. 1 as an example, the length of the non-stop road section in the exit road section (road section 2) of the traffic intersection a is the distance from the traffic intersection a to the end queued vehicle in the queue in the road section 2.
Optionally, in an implementation manner, the maximum queuing number is:
wherein N issIs the maximum queuing number, LcTo a specified length, Sv,sThe distance between the heads of the adjacent vehicles when the vehicles are queued;
in one implementation, the target number of vehicles is:
wherein N isdFor the target number of vehicles, LaFor the length of the traffic in the traffic intersection, Sv,dThe distance between the heads of the adjacent vehicles when the vehicles run.
In order to prevent a vehicle traveling in a specified length and a traveling length in an intersection from exceeding the range of an exit link even if the vehicle is traveling in the specified length and the traveling length in the intersection before a vehicle in a traffic direction is prohibited from entering the exit link, after a new vehicle is prohibited from entering the exit link, remaining traveling vehicles in the length of the route are queued up and stopped at the exit link, and it is necessary to ensure NsIs less than or equal to NdThen, there are:
the transformation can be obtained by transforming the raw materials,
i.e. of specified length LcNeed to be equal to or greater than
Wherein S isv,dAnd Sv,sCan be determined empirically, LaCan be approximately replaced by the width of the available traffic intersection.
Optionally, in an implementation manner, it may be detected whether the length of the non-stop road section in the exit road section of the traffic intersection is smaller than a specified length by measuring the queuing length of the exit road section.
Optionally, the monitoring device is used for shooting a road image of the exit road section, the image recognition technology is further used for recognizing the queuing length of the exit road section, and then the difference value between the road section length of the exit road section and the queuing length is calculated, so that the length of the section without parking in the exit road section is obtained. It should be noted that, when the queuing length is identified by using the road image, the monitoring device may be disposed at the traffic intersection on the other side of the processed road segment, and taking fig. 1 as an example, when the queuing length in the road segment 2 needs to be identified, the monitoring device may be disposed at the traffic intersection B.
Optionally, the monitoring device may be further used to capture a road image of the exit road section, and then the image recognition technology is used to directly recognize the length of the section of the exit road section where the vehicle is not parked. At this time, the monitoring device may be disposed at the traffic intersection, and taking fig. 1 as an example, when it is required to identify the length of the non-stop road section in the road section 2, the monitoring device may be disposed at the traffic intersection a.
After the length of the section without parking in the exit section is obtained, the length of the section without parking can be directly compared with the specified length to determine whether the length of the section without parking in the exit section is smaller than the specified length.
However, when the exit road section is long, the acquired road image cannot completely contain the queue or the unparked road section, so that the queue length of the exit road section or the length of the unparked road section in the exit road section cannot be accurately acquired from the road image. Thereby leading to inaccurate detection results.
To improve the accuracy of the detection results, in another implementation, a queuing threshold point is set within the exit road segment a specified length from the traffic intersection. Illustratively, as shown in fig. 3, a schematic diagram of an intersection for setting a queuing threshold point is provided in the embodiment of the present invention. In FIG. 3, the intersection A and the intersection B are traffic intersections, and the width of the intersection is LaThe distance between the exit road sections on the right side of the intersection A is LcA queuing threshold point is arranged.
At this time, detecting whether the length of the section of the exit section where the vehicle is not parked is less than a specified length includes:
and when the vehicle in the queue stops at the queuing threshold point, judging that the length of the section of the exit road without parking is less than the specified length, otherwise, judging that the length of the section of the exit road without parking is not less than the specified length.
Since the queuing threshold point is arranged at the position, away from the traffic intersection, of the exit road section by the specified length, when a queued vehicle stops at the queuing threshold point, the queuing threshold point indicates that the queuing queue in the exit road section is already arranged at the position of the queuing threshold point, which means that the length of the section, which is not parked, in the exit road section is already less than or equal to the specified length, as shown in fig. 3, the queued vehicle stops at the queuing threshold point, and therefore, the length of the section, which is not parked, in the exit road section can be determined to be less than the specified length. If no vehicle in line is detected to stop at the queuing threshold point, the length of the section of the exit road without the vehicle in line is judged to be not less than the specified length.
Alternatively, various ways may be employed to detect whether a queued vehicle is stopped at a queuing threshold point.
In one implementation, a radar detector may be installed at the intersection to detect whether there is a vehicle in line stopping at the queuing threshold point. Illustratively, as shown in fig. 3, a radar detector is provided at the exit of the intersection a (i.e., the entrance of the exit section). When the radar detector detects that the queuing threshold point is occupied by the queuing vehicles, the overflow phenomenon is about to occur, and overflow control measures need to be taken.
In another implementation mode, a geomagnetic detector can be further arranged at the queuing threshold point, and whether the queuing threshold point is occupied by the queuing vehicles or not is detected through the geomagnetic detector. When the geomagnetic detector detects that the queuing threshold point is occupied by the queuing vehicles, the overflow phenomenon is about to occur, and overflow control measures need to be taken.
S202, when the length is smaller than the specified length, whether a first traffic flow direction of the exit road section is included in the first phase or not is determined; wherein the first phase is: signal lamp phase of the traffic intersection at the current moment;
the signal lamp phase of the traffic intersection refers to the state of a signal lamp group corresponding to one or more traffic flows which simultaneously obtain the right of way. For example, east-west going straight, north turning left, etc. Fig. 4 is a schematic phase sequence diagram according to an embodiment of the present invention. Including phase 1, phase 2, phase 3, and phase 4. The phase 1 is a traffic flow direction including east-west straight traveling, the phase 2 is a traffic flow direction including east-west left turning, the phase 3 is a traffic flow direction including north-south straight traveling, and the phase 4 is a traffic flow direction including north-south left turning.
When the length of the section without parking in the exit section of the traffic intersection is detected to be less than the specified length, the overflow phenomenon is about to occur, and an overflow control measure needs to be taken. At this time, it can be determined whether the first traffic direction of the exit road segment is included in the signal lamp phase of the traffic intersection at the current moment.
In one implementation, phase information of a signal lamp at a traffic intersection may be obtained, and then based on the phase information, it is determined whether a first phase of the traffic intersection at the current time includes a traffic flow direction of a traffic-entering exit road segment. The phase information can be a signal lamp control phase sequence of the traffic intersection.
For example, taking the traffic intersection shown in fig. 1 as an example, the road segment 2 is an exit road segment, and the length of the non-stop road segment in the road segment 2 is smaller than a specified length, it can be determined whether the traffic direction of the first phase includes the traffic direction 1 or the traffic direction 2. And if the traffic directions of the first phase include the traffic direction 1 or the traffic direction 2, the vehicle direction of the entrance/exit road section included in the first phase is taken as the first traffic direction, and the first traffic direction of the entrance/exit road section included in the first phase is judged, otherwise, if the traffic directions of the first phase do not include the traffic direction 1 or the traffic direction 2, the first traffic direction of the entrance/exit road section not included in the first phase is judged.
Determining a first direction of flow including an entry route section in a first phase
When it is determined that the signal lamp control phase of the traffic intersection includes the traffic flow direction of the entry road section within the specified time period after the current time, step S203 is executed.
S203, controlling the signal lamp in the first traffic flow direction to be switched from the passing state to the non-passing state in the remaining time of the first phase.
Because the overflow phenomenon is about to occur at the current intersection, the signal lamp for controlling the first traffic flow direction is switched from the passing state to the non-passing state within the remaining duration of the first phase.
The traffic state of the signal lamp is a green lamp lighting state, and the non-traffic state of the signal lamp is a yellow lamp or red lamp lighting state.
Fig. 5 is a schematic diagram of a first phase adjustment according to an embodiment of the present invention. The overflow occurrence time in the figure is the time when the length of the section without parking in the exit section is detected to be smaller than the specified length, the signal lamp control phase at the current time is determined to be phase 4, the phase 4 comprises the traffic flow direction of the left turn north of the section with the entrance, and the traffic flow direction is taken as the first traffic flow direction. At the present moment, the signal lamp in the first traffic flow direction is controlled to be in the first state, such as green, so that in order to avoid a new vehicle from entering the exit road section, the signal lamp in the first traffic flow direction needs to be controlled to be switched from the first state to the second state. In the overflow control method provided by the embodiment of the invention, the specified length is the length that the maximum queuing number is not less than the target traffic number, and the target traffic number is the maximum traffic number in the specified length and the traffic length in the traffic intersection, which means that even if there is a running vehicle in the specified length and the traffic length in the traffic intersection before the signal lamp in the first traffic direction is switched to the non-passing state, after the signal lamp in the first traffic direction is switched to the non-passing state, the remaining running vehicles in the length of the section are queued and stopped at the exit section, and cannot exceed the range of the exit section.
In order to further alleviate the occurrence of the traffic overflow phenomenon, on the basis of the embodiment of fig. 2, as shown in fig. 6, an embodiment of the present invention further provides an overflow control method, which further includes steps S204-S205 after step S203, wherein:
s204: determining whether a second traffic direction for driving into the exit road segment is included in the second phase; and the second phase is the next signal lamp phase of the first phase.
Similar to determining whether the first vehicle direction of the outbound road segment is included in the first phase, it may be determined whether the second vehicle direction of the outbound road segment is included in the second phase. The embodiments of the present invention are not described herein. If it is determined that the first phase includes the second flow direction entering the exit road segment, step S205 may be performed.
S205: and after the execution of the first phase is finished, controlling the state of the signal lamp in the second traffic direction to be a non-passing state within the phase duration of the second phase.
Exemplarily, as shown in fig. 7, a second phase adjustment diagram provided in the embodiment of the present invention is shown. In the figure, the overflow occurrence moment is the moment when the length of the section without parking in the exit section is detected to be smaller than the specified length, the signal lamp control phase at the current moment is determined to be phase 4, and the phase of the next signal lamp in the phase 4 is determined to be phase 1, the east-west straight vehicle direction is included in the determined phase 1, wherein the east-straight vehicle direction is the second vehicle flow direction of driving into the exit section. Therefore, the state of the traffic light in the second traffic direction is controlled to be the second state in the phase duration of the phase 1. For example, in the phase duration of phase 1, the signal light in the east-straight direction is controlled to be red.
The overflow control method provided by the embodiment of the invention can relieve the occurrence of the traffic overflow phenomenon, and further can further relieve the occurrence of the traffic overflow phenomenon by setting the state of the signal lamp in the second traffic direction as a non-passing state.
Optionally, in an embodiment, a method for controlling overflow according to another embodiment of the present invention may include, before the step S201:
and when the exit road section is detected to be the overflow risk road section, executing the step of detecting whether the length of the section which is not parked in the exit road section of the traffic intersection is smaller than the specified length.
Optionally, in an embodiment, as shown in fig. 8, an overflow control method provided by another embodiment of the present invention includes, in addition to the above steps, the following step of detecting whether the outlet section is an overflow risk section:
s801, after the action of controlling the entering traffic flow is executed on the downstream road section of the exit road section, the number of vehicles which travel to the downstream road section from the exit road section within the first preset time length is determined.
To avoid infinite extension, the downstream section may be any one of 1 to 2 sections downstream of the exit section. For example, the exit road segment is road segment a, and road segments B and C in the figure are downstream road segments of road segment a. When at least one downstream road section in each downstream road section of the exit road section executes the action of controlling the entering traffic flow, the number of vehicles which travel from the exit road section to the downstream road section within the first preset time period can be determined.
In the embodiment of the present invention, a road segment that performs an action of controlling an incoming traffic flow may be referred to as a bottleneck road segment, that is, a road segment that may cause traffic congestion propagation or spreading in a road network. When a bottleneck section occurs in each downstream section of the exit section, each upstream section of the bottleneck section can be determined to be an overflow risk section (including the exit section).
Referring to fig. 9, as shown in fig. 9, a schematic diagram of determining an overflow risk section according to an embodiment of the present invention is provided, where a section a in fig. 9 is an exit section, a downstream section of the section a includes a section B and a section C, and an upstream section of the section C includes a section a, a section B, and a section D. When the road section C executes the action of controlling the driving traffic flow, namely the road section C is a bottleneck road section, all the upstream road sections A, B and D of the road section C are overflow risk road sections. At this time, for any overflow risk road section, whether the overflow risk road section needs to take overflow control measures or not can be judged according to the condition that the road section drives into the bottleneck road section.
Optionally, in an implementation, the following steps may be adopted to determine the number of vehicles traveling from the exit road section to the downstream road section within the first preset time period, including:
the method comprises the steps of obtaining first vehicle passing information of a downstream road section and second vehicle passing information of an exit road section, and determining the number of vehicles running to the downstream road section from the exit road section within a first preset time period on the basis of the first vehicle passing information and the second vehicle passing information.
The process information of the road section comprises a vehicle identification of a vehicle driven by the road section and the driving-in and driving-out time of the vehicle. In one implementation, the determining the number of vehicles traveling from the exit road section to the downstream road section within the first preset time period based on the first vehicle passing information and the second vehicle passing information may include:
acquiring first vehicle information of vehicles running in a downstream road section within a first preset time length on the basis of the first vehicle passing information, and acquiring second vehicle information of vehicles running in an exit road section within a second preset time length on the basis of the second vehicle passing information; the second preset time length is longer than the first preset time length;
and determining the number of vehicles of which the first vehicle information is matched with the second vehicle information as the number of vehicles traveling from the exit road section to the downstream road section within the first preset time period.
The first preset time period and the second preset time period may be determined empirically, for example, the first preset time period is 10 minutes, and the second preset time period is 30 minutes.
The first vehicle information may be a vehicle identifier of a vehicle traveling in a downstream road section within a first preset time, and similarly, the first vehicle information may be a vehicle identifier of a vehicle traveling in an exit road section within a second preset time. The number of the vehicles with the matched first vehicle information and second vehicle information is the number of the vehicles with the same vehicle identification.
And S802, judging whether the number of the vehicles meets a preset overflow risk condition or not.
The overflow risk condition may be determined according to requirements and experience. The above-mentioned judging whether the number of vehicles satisfies the preset overflow risk condition may be judging whether the number ratio of vehicles satisfies the preset condition.
In one implementation, whether the number of vehicles meets the preset overflow risk condition may be determined as follows, including:
determining a first driving quantity of a downstream road section within a first preset time length on the basis of the first vehicle passing information, and determining a second driving quantity of an exit road section within a second preset time length on the basis of the second vehicle passing information; the second preset time length is longer than the first preset time length;
calculating a first ratio of the number of vehicles to the first number of vehicles, and calculating a second ratio of the number of vehicles to the second number of vehicles;
and when the first ratio is greater than a first preset threshold value and the second ratio is greater than a second preset threshold value, judging that the number of vehicles meets a preset overflow risk condition.
The first driving quantity is the total quantity of the vehicles which travel in the downstream road section within the first preset time length. Similarly, the second driving number is the total number of the vehicles driving in the exit section within the second preset time period. The first preset threshold and the first preset threshold may be determined according to experience and requirements.
If the number of vehicles is determined to satisfy the predetermined overflow risk condition, step S803 is executed.
And S803, judging that the outlet road section is an overflow risk road section.
If the exit section is determined to be the overflow risk section, it indicates that the exit section has the overflow risk, and the overflow control measure needs to be taken, so that step S201 may be executed.
The overflow control method provided by the embodiment of the invention can relieve the occurrence of traffic overflow phenomenon, and further can accurately determine the road section with overflow risk by judging the overflow risk road section, so as to detect the road section with overflow risk and avoid the waste of detection resources.
With reference to fig. 9, an embodiment of the present invention further provides another overflow risk section determination diagram.
The road section indicated by the embodiment of the present invention may be a bottleneck road section in fig. 9. When the length of the section without parking is detected to be smaller than the specified length by the exit section, the flow tracing can be carried out on the exit section. Wherein the current time is Tnow，T1＝Tnow-t1，T2＝Tnow-t2Exemplary t1＝10min，t2＝30min。
Step 1: statistics of Tnow-T1Determining the number of vehicles to be Q according to the passing information of bottleneck road sections in time intervalsbottle。
Step 2: statistics of Tnow-T2Determining the number of vehicles to be Q according to the passing information of each associated road section i at the upstream of the bottleneck in the time intervalr,i。
And step 3: comparing the vehicle passing information of each associated road section with the vehicle passing information of the bottleneck road section, and if the information is the same, determining the vehicle contribution Q of the road section to the bottleneck road sectioncon,iAdding 1, i.e. determined at T1＝Tnow-t1The number of vehicles traveling from the associated road segment i to the exit road segment.
And 4, step 4: by the number of vehicle contributions Q of each road sectioncon,iTraffic Q in bottleneck sectionbottleAs the degree of association R between each link and the bottleneck linki。
And 5: the vehicle contribution number Q of each associated road sectioncon,iDivided by the traffic passing amount Q of the road sectionr,iThe ratio P of the number of passing vehicles as the bottleneck of the road sectioni。
Step 6: for any associated road section i, if the association degree Ri>Alpha and a ratio Pi>And beta, judging the associated road section i as an overflow risk road section, and adding the overflow risk road section into the overflow risk road section set. Wherein, the values of alpha and beta can be determined according to actual conditions.
And 7: and overflow state detection and overflow control measures are taken for each overflow risk road section, so that the overflow is prevented from being diffused in a large range.
The overflow control method provided by the embodiment of the invention can relieve the occurrence of traffic overflow phenomenon, and further can accurately determine the road section with overflow risk by judging the overflow risk road section, so as to detect the road section with overflow risk and avoid the waste of detection resources.
According to an embodiment of the overflow control method of the present invention, as shown in fig. 10, the present invention further provides an overflow control apparatus, the apparatus including:
a length detection module 1001, configured to detect whether a length of an unparked road section in an exit road section of a traffic intersection is smaller than a specified length; wherein; the specified length is the length that the maximum queuing number is not less than the target travelling crane number, and the target travelling crane number is the maximum travelling crane number in the specified length and the travelling crane length in the traffic intersection;
a traffic direction determining module 1002, configured to determine whether a first traffic direction entering the exit road segment is included in a first phase when the length is smaller than the specified length; wherein the first phase is: the signal lamp phase of the traffic intersection at the current moment;
and the vehicle driving-in prohibition module 1003 is configured to, if yes, control the traffic light in the first traffic flow direction to be switched from a passing state to a non-passing state within the remaining time of the first phase.
Optionally, the traffic direction determining module is further configured to determine whether a second traffic direction entering the exit road segment is included in the second phase after determining whether the first phase includes the first traffic direction entering the exit road segment; wherein the second phase is a next signal lamp phase of the first phase;
and if the vehicle driving-in prohibition module is included, after the execution of the first phase is finished, the state of the signal lamp in the second traffic direction is controlled to be the non-passing state within the phase duration of the second phase.
Optionally, a queuing threshold point is set at a position, away from the traffic intersection, by the specified length in the exit road section;
the length detection module is specifically configured to determine that the length of the section of the exit road where the vehicle is not parked is smaller than the specified length when it is detected that the vehicle in line stops at the queuing threshold point, and otherwise, determine that the length of the section of the exit road where the vehicle is not parked is not smaller than the specified length.
Optionally, the maximum queuing number is:
wherein N issFor said maximum number of queues, LcFor the specified length, Sv,sThe distance between the heads of the adjacent vehicles when the vehicles are queued;
the target driving quantity is as follows:
wherein N isdFor the target number of vehicles, LaIs the length of the traffic in the traffic intersection, Sv,dThe distance between the heads of the adjacent vehicles when the vehicles run.
Optionally, the apparatus further comprises:
a risk road section detection module, configured to execute the length detection module to execute the length of an unparked road section in an exit road section of the detected traffic intersection before whether the length is smaller than a specified length or not, and execute the length detection module when the exit road section is detected to be an overflow risk road section
Optionally, the risk road segment detecting module is specifically configured to determine, after the downstream road segment of the exit road segment executes the action of controlling the entering traffic flow, the number of vehicles traveling from the exit road segment to the downstream road segment within a first preset time period; judging whether the number of the vehicles meets a preset overflow risk condition or not; and if so, judging that the outlet road section is an overflow risk road section.
Optionally, the risk road segment detecting module is specifically configured to obtain first vehicle passing information of the downstream road segment and second vehicle passing information of the exit road segment; and determining the number of vehicles which are driven to the downstream road section from the exit road section within a first preset time period on the basis of the first vehicle passing information and the second vehicle passing information.
Optionally, the risk road segment detecting module is specifically configured to obtain first vehicle information of vehicles running in the downstream road segment within a first preset time period before the first vehicle information is obtained based on the first vehicle passing information; acquiring second vehicle information of vehicles running in the exit road section within a second preset time period before the second vehicle passing information is acquired; the second preset time length is longer than the first preset time length; determining the number of vehicles of which the first vehicle information is matched with the second vehicle information as the number of vehicles driving to the downstream road section from the exit road section within the first preset time period.
Optionally, the risk road segment detecting module is specifically configured to determine, based on the first vehicle passing information, a first number of vehicles in the first preset time duration of the downstream road segment, and determine, based on the second vehicle passing information, a second number of vehicles in the second preset time duration of the exit road segment; the second preset time length is longer than the first preset time length; calculating a first ratio of the number of vehicles to the first number of traveling vehicles, and calculating a second ratio of the number of vehicles to the second number of traveling vehicles; and when the first ratio is greater than a first preset threshold value and the second ratio is greater than a second preset threshold value, determining that the number of vehicles meets a preset overflow risk condition.
In the overflow control method provided by the embodiment of the invention, the specified length is the length that the maximum queuing number is not less than the target traffic number, and the target traffic number is the maximum traffic number in the specified length and the traffic length in the traffic intersection, which means that even if there is a running vehicle in the specified length and the traffic length in the traffic intersection before the signal lamp in the first traffic direction is switched to the non-passing state, after the signal lamp in the first traffic direction is switched to the non-passing state, the remaining running vehicles in the length of the section are queued and stopped at the exit section, and cannot exceed the range of the exit section.
An embodiment of the present invention further provides an electronic device, as shown in fig. 11, including a processor 1101, a communication interface 1102, a memory 1103 and a communication bus 1104, where the processor 1101, the communication interface 1102 and the memory 1103 complete mutual communication through the communication bus 1104,
a memory 1103 for storing a computer program;
the processor 1101 is configured to implement any overflow control method provided by the embodiment of the present invention when executing the program stored in the memory 1103.
The communication bus mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface is used for communication between the electronic equipment and other equipment.
The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.
In yet another embodiment of the present invention, a computer-readable storage medium is further provided, in which a computer program is stored, and the computer program, when executed by a processor, implements the steps of any of the above-mentioned overflow control methods.
In yet another embodiment, a computer program product containing instructions is provided, which when run on a computer, causes the computer to perform any of the above-described methods of overflow control.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus, the electronic device, the readable storage medium, the computer program, and the computer program product embodiment, since they are substantially similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (12)
1. A method of spill control, the method comprising:
detecting whether the length of an unparked road section in an exit road section of the traffic intersection is smaller than a specified length or not; wherein; the specified length is the length that the maximum queuing number is not less than the target travelling crane number, and the target travelling crane number is the maximum travelling crane number in the specified length and the travelling crane length in the traffic intersection;
when the length is smaller than the specified length, determining whether a first traffic direction driving into the exit road section is included in the first phase; wherein the first phase is: the signal lamp phase of the traffic intersection at the current moment;
if yes, controlling the signal lamp in the first traffic flow direction to be switched from a passing state to a non-passing state within the remaining time of the first phase.
2. The method of claim 1, further comprising, after said determining whether a first direction of flow into the exit leg is contained within the first phase:
determining whether a second flow direction into the exit leg is included in the second phase; wherein the second phase is a next signal lamp phase of the first phase;
if the traffic signal is contained in the first phase, controlling the state of the signal lamp in the second traffic direction to be the non-passing state within the phase duration of the second phase after the execution of the first phase is finished.
3. The method of claim 1 or 2, wherein a queuing threshold point is set within the exit leg at the specified length from the traffic intersection;
the detecting whether the length of the section of the exit road without parking is smaller than a specified length includes:
and when the queuing vehicles are detected to stop at the queuing threshold point, judging that the length of the section of the exit road without parking is less than the specified length, otherwise, judging that the length of the section of the exit road without parking is not less than the specified length.
4. The method according to claim 1 or 2, wherein the maximum queuing number is:
wherein N issFor said maximum number of queues, LcFor the specified length, Sv,sThe distance between the heads of the adjacent vehicles when the vehicles are queued;
the target driving quantity is as follows:
wherein N isdFor the target number of vehicles, LaIs the length of the traffic in the traffic intersection, Sv,dThe distance between the heads of the adjacent vehicles when the vehicles run.
5. The method of any of claims 1 or 2, further comprising, before detecting whether a length of an unparked road segment within an exit road segment of a traffic intersection is less than a specified length:
and when the exit road section is detected to be the overflow risk road section, executing the step of detecting whether the length of the section which is not parked in the exit road section of the traffic intersection is smaller than the specified length.
6. The method according to claim 5, characterized in that the detection of the exit section as an overflow risk section is carried out by:
after the downstream road section of the exit road section executes the action of controlling the entering traffic flow, determining the number of vehicles which travel from the exit road section to the downstream road section within a first preset time period;
judging whether the number of the vehicles meets a preset overflow risk condition or not;
and if so, judging that the outlet road section is an overflow risk road section.
7. The method of claim 6, wherein the determining the number of vehicles traveling from the exit leg to the downstream leg within a first predetermined length of time comprises:
acquiring first vehicle passing information of the downstream road section and second vehicle passing information of the exit road section;
and determining the number of vehicles which are driven to the downstream road section from the exit road section within a first preset time period on the basis of the first vehicle passing information and the second vehicle passing information.
8. The method of claim 7, wherein the determining the number of vehicles traveling from the exit road segment to the downstream road segment within a first preset time period based on the first and second passing information comprises:
acquiring first vehicle information of vehicles running in the downstream road section within a first preset time period based on the first vehicle passing information;
acquiring second vehicle information of vehicles running in the exit road section within a second preset time period before the second vehicle passing information is acquired; the second preset time length is longer than the first preset time length;
determining the number of vehicles of which the first vehicle information is matched with the second vehicle information as the number of vehicles driving to the downstream road section from the exit road section within the first preset time period.
9. The method of claim 7, wherein the determining whether the number of vehicles meets a preset overflow risk condition comprises:
determining a first driving quantity of the downstream road section within a first preset time length on the basis of the first vehicle passing information, and determining a second driving quantity of the exit road section within a second preset time length on the basis of the second vehicle passing information; the second preset time length is longer than the first preset time length;
calculating a first ratio of the number of vehicles to the first number of traveling vehicles, and calculating a second ratio of the number of vehicles to the second number of traveling vehicles;
and when the first ratio is greater than a first preset threshold value and the second ratio is greater than a second preset threshold value, determining that the number of vehicles meets a preset overflow risk condition.
10. An overflow control device, the device comprising:
the length detection module is used for detecting whether the length of an unparked road section in an exit road section of the traffic intersection is smaller than a specified length or not; wherein; the specified length is the length that the maximum queuing number is not less than the target travelling crane number, and the target travelling crane number is the maximum travelling crane number in the specified length and the travelling crane length in the traffic intersection;
the traffic flow direction determining module is used for determining whether a first traffic flow direction driving into the exit road section is included in a first phase when the length is smaller than the specified length; wherein the first phase is: the signal lamp phase of the traffic intersection at the current moment;
and the vehicle driving-in prohibition module is used for controlling the signal lamp in the first traffic flow direction to be switched from a passing state to a non-passing state within the remaining time of the first phase if the vehicle driving-in prohibition module is included.
11. An electronic device is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps of any of claims 1-9 when executing a program stored in the memory.
12. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which computer program, when being executed by a processor, carries out the method steps of any one of the claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111109487.3A CN113674542B (en) | 2021-09-22 | 2021-09-22 | Overflow control method and device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111109487.3A CN113674542B (en) | 2021-09-22 | 2021-09-22 | Overflow control method and device and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113674542A true CN113674542A (en) | 2021-11-19 |
| CN113674542B CN113674542B (en) | 2023-01-03 |
Family
ID=78549874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111109487.3A Active CN113674542B (en) | 2021-09-22 | 2021-09-22 | Overflow control method and device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113674542B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114743386A (en) * | 2022-04-15 | 2022-07-12 | 广西盖德科技有限公司 | Self-coordination method and system for dynamically distributing public resources based on flow rate |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568210A (en) * | 2012-03-10 | 2012-07-11 | 山东大学 | Traffic overflow control method based on video feedback |
| CN103871258A (en) * | 2014-03-07 | 2014-06-18 | 北京航空航天大学 | Signal control method for preventing dead lock of intersection |
| CN104157152A (en) * | 2014-08-13 | 2014-11-19 | 安徽科力信息产业有限责任公司 | Traffic signal optimization control method for vehicle queuing overflow state at road intersections |
| CN104966402A (en) * | 2015-06-05 | 2015-10-07 | 吉林大学 | Supersaturated traffic flow intersection queue overflow prevention and control method |
| CN109285362A (en) * | 2018-12-07 | 2019-01-29 | 北京工业大学 | The anti-overflow dynamic control method in intersection based on priority rule |
| CN109410601A (en) * | 2018-12-04 | 2019-03-01 | 北京英泰智科技股份有限公司 | Method for controlling traffic signal lights, device, electronic equipment and storage medium |
| CN109979199A (en) * | 2019-04-10 | 2019-07-05 | 宁波保税区立诚信息技术有限公司 | What a kind of intersection traffic slime flux did well automatically terminates method |
| CN110503836A (en) * | 2019-10-08 | 2019-11-26 | 北京工业大学 | A kind of anti-overflow control method of oversaturated intersection based on dual detector |
-
2021
- 2021-09-22 CN CN202111109487.3A patent/CN113674542B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568210A (en) * | 2012-03-10 | 2012-07-11 | 山东大学 | Traffic overflow control method based on video feedback |
| CN103871258A (en) * | 2014-03-07 | 2014-06-18 | 北京航空航天大学 | Signal control method for preventing dead lock of intersection |
| CN104157152A (en) * | 2014-08-13 | 2014-11-19 | 安徽科力信息产业有限责任公司 | Traffic signal optimization control method for vehicle queuing overflow state at road intersections |
| CN104966402A (en) * | 2015-06-05 | 2015-10-07 | 吉林大学 | Supersaturated traffic flow intersection queue overflow prevention and control method |
| CN109410601A (en) * | 2018-12-04 | 2019-03-01 | 北京英泰智科技股份有限公司 | Method for controlling traffic signal lights, device, electronic equipment and storage medium |
| CN109285362A (en) * | 2018-12-07 | 2019-01-29 | 北京工业大学 | The anti-overflow dynamic control method in intersection based on priority rule |
| CN109979199A (en) * | 2019-04-10 | 2019-07-05 | 宁波保税区立诚信息技术有限公司 | What a kind of intersection traffic slime flux did well automatically terminates method |
| CN110503836A (en) * | 2019-10-08 | 2019-11-26 | 北京工业大学 | A kind of anti-overflow control method of oversaturated intersection based on dual detector |
Non-Patent Citations (2)
| Title |
|---|
| 吕瑶璐，等: "基于进口道检测器数据的交通溢流判别方法", 《交通科学与工程》 * |
| 朱仁伟: "信号交叉口排队溢流控制触发条件及方案设计", 《武汉理工大学学报（交通科学与工程版）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114743386A (en) * | 2022-04-15 | 2022-07-12 | 广西盖德科技有限公司 | Self-coordination method and system for dynamically distributing public resources based on flow rate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113674542B (en) | 2023-01-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8830086B2 (en) | Adjusting traffic lights | |
| CN111063205B (en) | Signal lamp control method, device, equipment and storage medium | |
| CN109754619B (en) | Single-point traffic signal control method and device, traffic signal machine and storage medium | |
| CN111341105B (en) | Vehicle speed guiding method, device, equipment and medium based on adjacent intersection association degree | |
| KR102383426B1 (en) | Apparatus and Method for determining toll gate section | |
| CN114078327B (en) | Road congestion state detection method, device, equipment and storage medium | |
| CN113674542B (en) | Overflow control method and device and electronic equipment | |
| JP5338392B2 (en) | Driving support device and driving support method | |
| CN109841078B (en) | Navigation data processing method and device and storage medium | |
| US20210027619A1 (en) | Traffic monitoring apparatus, traffic monitoring system, traffic monitoring method, and non-transitory computer readable medium storing program | |
| CN113870564B (en) | Traffic jam classification method and system for closed road section, electronic device and storage medium | |
| US20230360523A1 (en) | Traffic monitoring apparatus, traffic monitoring system, traffic monitoring method, and non-transitory computer readable medium storing program | |
| CN113936480A (en) | Traffic signal control method and equipment | |
| CN111275989B (en) | Single-point signal timing optimization method driven by congestion alarm | |
| CN108806285B (en) | Intersection signal adjusting method and device based on array radar | |
| CN103985265A (en) | Bus priority control method and system for avoiding bus clustering | |
| CN108269400B (en) | Main trunk signal control intersection delay estimation method and device | |
| CN110136437B (en) | Method and device for determining left-right interference problem of intersection entrance lane | |
| CN109300315B (en) | Geomagnetic data anomaly discrimination method and system based on vehicle detection probability | |
| CN116935631A (en) | Abnormal traffic situation detection method, device and system based on radar fusion | |
| CN114724388B (en) | Traffic signal lamp control method and device and electronic equipment | |
| JP4320625B2 (en) | Traffic signal control method and control apparatus for implementing the method | |
| CN116824858A (en) | Road section congestion adjustment method and device, computer equipment and storage medium | |
| CN105389982A (en) | Method for detecting and dispersing city intersection jam event based on FCD | |
| CN111369812B (en) | Traffic signal control method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |