CN112466127A - Traffic passing control method, system, electronic equipment and storage medium - Google Patents
Traffic passing control method, system, electronic equipment and storage medium Download PDFInfo
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- CN112466127A CN112466127A CN202011271576.3A CN202011271576A CN112466127A CN 112466127 A CN112466127 A CN 112466127A CN 202011271576 A CN202011271576 A CN 202011271576A CN 112466127 A CN112466127 A CN 112466127A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
- G08G1/0129—Traffic data processing for creating historical data or processing based on historical data
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
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- 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
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Abstract
The present application relates to the field of urban traffic technologies, and in particular, to a method, a system, an electronic device, and a storage medium for controlling traffic passage. According to the method and the device, whether the situation of congestion unbalance of lanes leading to different directions occurs in the first road section is determined according to the acquired congestion degree of the lanes leading to different directions in the first road section with the variable guide lane, and if the situation occurs, linkage control is performed on the guide direction of the variable guide lane and traffic lights in a second road section on the basis of the situation of congestion unbalance of the lanes leading to different directions in the first road section, wherein the second road section is a road section from which vehicles congestion occurs in the first road section. Therefore, when the situation of congestion unbalance occurs in the first road section with the variable guide lane, the traffic congestion can be quickly and effectively relieved by performing linkage control on the guide direction of the variable guide lane and the traffic signal lamp in the second road section, and the traffic efficiency of the lane is improved.
Description
Technical Field
The present application relates to the field of urban traffic technologies, and in particular, to a method, a system, an electronic device, and a storage medium for controlling traffic passage.
Background
The variable guide lane is one of important components in an urban traffic management control system, and is a lane which can flexibly regulate and control the flow direction according to the characteristic that the traffic flow direction is different at different time intervals, and can change the driving direction of the lane to relieve traffic pressure.
At present, the guiding direction of a variable guiding lane is mainly adjusted in real time or for a fixed time period according to the change of traffic flow, but only the guiding direction of the variable guiding lane is adjusted, and when traffic jam is serious, the traffic jam condition cannot be quickly and effectively relieved, so that the effect of quickly and accurately adjusting the traffic efficiency cannot be achieved.
Disclosure of Invention
In view of this, embodiments of the present application at least provide a method, a system, an electronic device and a storage medium for controlling traffic, which can quickly and effectively alleviate traffic congestion and improve lane passing efficiency.
The application mainly comprises the following aspects:
in a first aspect, an embodiment of the present application provides a method for controlling traffic passage, where the method includes:
acquiring congestion degrees of lanes leading to different directions in a first road section with a variable guiding lane;
determining whether the lanes leading to different directions have congestion unbalance conditions in the first road section based on the congestion degrees of the lanes leading to different directions in the first road section;
if so, carrying out linkage control on the guiding direction of the variable guiding lane and a traffic signal lamp in a second road section based on the congestion unbalance condition of the lanes to different directions in the first road section; the second road section is a road section of a vehicle source with congestion occurring in the first road section.
In one possible embodiment, the traffic lane leading to the different direction is determined to have a congestion imbalance condition in the first section when:
if the congestion degree of the lanes leading to the first direction is larger than or equal to a first preset congestion threshold value and the congestion degree of the lanes leading to the second direction is smaller than a second preset congestion threshold value, determining that the congestion unbalance condition of the lanes leading to different directions occurs in the first road section;
the first direction and the second direction are directions corresponding to different lanes in the first road section.
In one possible embodiment, when it is determined that a congestion imbalance condition occurs in the first road segment in lanes leading to different directions, the guidance direction of the variable guidance lane is determined according to the following steps:
and determining the direction corresponding to the lane with the congestion in the first road section as the guiding direction of the variable guiding lane.
In one possible embodiment, the linkage control of the guidance direction of the variable guidance lane and the traffic signal lamp in the second road section based on the congestion unbalance condition of the lanes to different directions in the first road section comprises:
determining a current target guiding direction control scheme of the variable guiding lane and a target traffic signal lamp control scheme in the second road section based on the congestion unbalance condition of lanes leading to different directions in the first road section;
and performing linkage control on the guiding direction of the variable guiding lane and the traffic signal lamp in the second road section according to the target guiding direction control scheme of the variable guiding lane and the target traffic signal lamp control scheme in the second road section.
In one possible embodiment, the determining a current target guidance direction control scheme of the variable guidance lane based on a congestion imbalance condition of the first road segment to lanes in different directions includes:
and adjusting a preset guiding direction control scheme associated with the current moment according to the congestion unbalance condition of the lanes leading to different directions in the first road section to obtain a target guiding direction control scheme of the variable guiding lane.
In one possible embodiment, the preset steering direction control scheme is determined according to the following steps:
acquiring the congestion degree of lanes leading to different directions in the first road section of a historical time period within a preset historical number of days corresponding to the current time;
and determining the preset guiding direction control scheme based on the acquired congestion degree of the lanes to different directions in the first road section in the historical time period.
In one possible embodiment, the second route section is determined according to the following steps:
and selecting a road section where vehicles leading to the congestion direction in the first road section are located from a plurality of candidate road sections associated with the first road section, and determining the second road section as the source of the vehicles with congestion.
In one possible embodiment, the traffic light in the second route section is controlled according to the following steps:
and shortening the passing time of the second road section to the lane in the congestion direction in the first road section, and prolonging the passing time of the second road section to the lane except for the congestion direction.
In a second aspect, an embodiment of the present application further provides a traffic passing control system, where the control system includes an acquisition device and a central control server;
the acquisition equipment is used for acquiring traffic flow of lanes to different directions in a first road section with a variable guide lane and sending the traffic flow to the central control server;
the central control server is used for determining the congestion degrees of the lanes leading to different directions in the first road section according to the traffic flow, and determining whether the lanes leading to different directions have congestion unbalance conditions in the first road section based on the congestion degrees;
the central control server is further used for carrying out linkage control on the guiding direction of the variable guiding lane and the traffic signal lamp in the second road section based on the congestion unbalance condition when the congestion unbalance condition of the lanes leading to different directions in the first road section is determined; the second road section is a road section of a vehicle source with congestion occurring in the first road section.
In a possible embodiment, the central control server is specifically configured to determine that a congestion imbalance condition occurs in the first road segment in lanes leading to different directions according to the following steps:
if the congestion degree of the lanes leading to the first direction is larger than or equal to a first preset congestion threshold value and the congestion degree of the lanes leading to the second direction is smaller than a second preset congestion threshold value, determining that the congestion unbalance condition of the lanes leading to different directions occurs in the first road section;
the first direction and the second direction are directions corresponding to different lanes in the first road section.
In one possible embodiment, the central control server, when determining that a congestion imbalance condition occurs in the first road segment in lanes leading to different directions, is configured to determine the guidance direction of the variable guidance lane according to the following steps:
and determining the direction corresponding to the lane with the congestion in the first road section as the guiding direction of the variable guiding lane.
In one possible embodiment, the control system further comprises a signal cabinet and a variable guide lane controller;
the central control server is used for determining a current target guiding direction control scheme of the variable guiding lane and a target traffic signal lamp control scheme in the second road section based on the congestion unbalance condition of lanes leading to different directions in the first road section, sending the target guiding direction control scheme to the variable guiding lane controller and sending the target traffic signal lamp control scheme to the signal cabinet;
the signal cabinet is used for controlling the traffic signal lamp in the second road section according to the target traffic signal lamp control scheme after the target traffic signal lamp control scheme is received;
and the variable guide lane controller is used for controlling the guide direction of the variable guide lane in the first road section according to the target guide direction control scheme after receiving the target guide direction control scheme.
In a possible implementation manner, the central control server is configured to adjust a preset guidance direction control scheme associated with a current time according to a congestion imbalance condition of lanes leading to different directions in the first road segment, so as to obtain a target guidance direction control scheme of the variable guidance lane.
In a possible implementation, the central control server is configured to determine the preset guiding direction control scheme according to the following steps:
acquiring the congestion degree of lanes leading to different directions in the first road section of a historical time period within a preset historical number of days corresponding to the current time;
and determining the preset guiding direction control scheme based on the acquired congestion degree of the lanes to different directions in the first road section in the historical time period.
In a possible embodiment, the central control server is configured to determine the second road segment according to the following steps:
and selecting a road section where vehicles leading to the congestion direction in the first road section are located from a plurality of candidate road sections associated with the first road section, and determining the second road section as the source of the vehicles with congestion.
In a possible embodiment, the central control server is further configured to shorten the transit time to the traffic lane in the congestion direction in the first link in the second link, and to lengthen the transit time to the traffic lane except for the congestion direction in the second link.
In a third aspect, an embodiment of the present application further provides an electronic device, including: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, the processor and the memory communicate with each other through the bus when the electronic device runs, and the machine-readable instructions are executed by the processor to perform the steps of the method for controlling traffic passage in any one of the possible embodiments of the first aspect or the first aspect.
In a fourth aspect, the present application further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and the computer program is executed by a processor to perform the steps of the method for controlling traffic passage described in the first aspect or any one of the possible implementation manners of the first aspect.
The traffic passing control method, the traffic passing control system, the electronic device and the storage medium provided by the embodiment of the application have the advantages that when the situation of congestion unbalance occurs in the first road section with the variable guide lane, the guide direction of the variable guide lane and the traffic signal lamp in the second road section are subjected to linkage control, compared with the prior art that only the guide direction of the variable guide lane is adjusted, when the traffic congestion is serious, the situation of the traffic congestion cannot be quickly and effectively relieved, and the effect of quickly and accurately adjusting the passing efficiency of the traffic cannot be achieved, the traffic congestion can be quickly and effectively relieved by the method and the device, and the lane passing efficiency is further improved.
Further, the method for controlling traffic passage provided in this embodiment of the application may further determine a current target guidance direction control scheme of the variable guidance lane and a target traffic light control scheme in the second road segment based on a congestion imbalance condition of lanes leading to different directions in the first road segment, and perform linkage control on the guidance direction of the variable guidance lane and the traffic light in the second road segment according to the target guidance direction control scheme of the variable guidance lane and the target traffic light control scheme in the second road segment. Like this, through carry out coordinated control to the direction of guidance in variable direction lane and the traffic signal lamp in the second highway section, can effectively alleviate traffic jam fast, and then promote the current efficiency in lane.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a flowchart illustrating a method for controlling traffic passage according to an embodiment of the present application;
FIG. 2 shows a schematic view of a first road segment with a variable guide lane;
fig. 3 is a schematic structural diagram of a traffic passage control system according to an embodiment of the present application;
fig. 4 shows a second schematic structural diagram of a traffic passage control system according to an embodiment of the present application;
fig. 5 shows a schematic structural diagram of an electronic device provided in an embodiment of the present application.
Description of the main element symbols:
in the figure: 300-a control system for traffic passage; 310-a collection device; 320-a central control server; 330-signal cabinet; 340-variable guide lane controller; 500-an electronic device; 510-a processor; 520-a memory; 530-bus.
Detailed Description
To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for illustrative and descriptive purposes only and are not used to limit the scope of protection of the present application. Additionally, it should be understood that the schematic drawings are not necessarily drawn to scale. The flowcharts used in this application illustrate operations implemented according to some embodiments of the present application. It should be understood that the operations of the flow diagrams may be performed out of order, and that steps without logical context may be performed in reverse order or concurrently. One skilled in the art, under the guidance of this application, may add one or more other operations to, or remove one or more operations from, the flowchart.
In addition, the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
To enable those skilled in the art to utilize the present disclosure, the following embodiments are presented in conjunction with a specific application scenario "traffic passage," and it will be apparent to those skilled in the art that the general principles defined herein may be applied to other embodiments and application scenarios without departing from the spirit and scope of the present disclosure.
The method, system, electronic device or computer-readable storage medium described in the embodiments of the present application may be applied to any scenario in which traffic needs to be performed, and the embodiments of the present application do not limit specific application scenarios.
Before the application is proposed, the related scheme mainly adjusts the guiding direction of the variable guiding lane in real time or for a fixed time period according to the change of the traffic flow, but only adjusts the guiding direction of the variable guiding lane, and when the traffic jam is serious, the traffic jam cannot be quickly and effectively alleviated, for example, the number of vehicles that can be accommodated by the jammed lane in a road section with the variable guiding lane is 500, but at present, 1500 vehicles jam still cannot be accommodated by 500 vehicles even if the variable guiding lane is opened and the guiding direction of the variable guiding lane is set to be consistent with the flow direction of the jammed lane, and 1000 vehicles can be accommodated by the jammed lane and the variable guiding lane together, that is, the road section is still in a jam state, so the effect of quickly and accurately adjusting the traffic efficiency of the traffic jam cannot be achieved.
In view of the above problems, in the embodiment of the present application, it is determined whether congestion unbalance conditions occur in the first road section of lanes leading to different directions according to the acquired congestion degrees of the lanes leading to different directions in the first road section with the variable guidance lane, and if so, the guidance direction of the variable guidance lane and the traffic signal lamp in the second road section are controlled in an interlocking manner based on the congestion unbalance conditions of the lanes leading to different directions in the first road section, where the second road section is a road section from which vehicles congested in the first road section originate. Here, when the traffic jam occurs in the first section with the variable guidance lane, on one hand, the guidance direction of the variable guidance lane is set to be the same direction as the direction of the traffic jam lane to increase the number of lanes leading to the traffic jam direction, thereby alleviating the traffic jam, and on the other hand, the number of vehicles flowing into the lane leading to the traffic jam direction can be reduced by controlling the signal lamps flowing into the lanes of the traffic jam direction section.
It should be noted that the variable guidance lane line has flexibility, and is different from a common lane indication line, the ground of a common lane has a marked line to indicate the trend, and the variable guidance lane line is generally arranged on a road section with more complex traffic conditions.
The variable guide lane is characterized in that a plurality of oblique lines are marked on the inner side of the lane and are somewhat like a non-line lying on the front, the lane with the indication direction can be changed at any time according to the traffic flow as the name suggests, and the direction of a vehicle entering the variable guide lane is determined according to the indication of a signal lamp of the corresponding lane. Namely, the variable guide lane is a lane which can flexibly regulate and control the flow direction according to the characteristic that the traffic flow direction is different at different time intervals, and can change the driving direction of the lane to relieve traffic pressure.
For the convenience of understanding of the present application, the technical solutions provided in the present application will be described in detail below with reference to specific embodiments.
Fig. 1 is a flowchart of a traffic passage control method according to an embodiment of the present application. As shown in fig. 1, the traffic control method provided in the embodiment of the present application is applied to a central control server in a traffic control system, where the traffic control method includes the following steps:
s101: the congestion degree of the first road section with the variable guiding lane to the lanes in different directions is obtained.
In a specific implementation, the congestion degree of lanes leading to different directions in the first road segment may be obtained in real time or at preset time intervals, where the first road segment includes multiple lanes, at least one lane of the multiple lanes in the first road segment is a variable guidance lane, the traffic directions of the different lanes may be the same or different, and the traffic directions include, but are not limited to, a left-turn direction, a straight-going direction, and a right-turn direction. The preset time interval can be set according to the actual traffic condition, and is generally set in units of seconds.
It should be noted that, the traffic flow rates of the first road section to the lanes in different directions may be obtained first, and then, the congestion degrees of the different lanes are determined according to the traffic flow rates of the first road section to the lanes in different directions, where the congestion degrees of the lanes may include, but are not limited to, no congestion (clear), light congestion, medium congestion, and high congestion.
Here, fig. 2 shows a schematic view of a first road segment with a variable guidance lane, wherein the first road segment comprises four lanes, the traffic direction of the first lane is a left-turn direction, the second lane is a variable guidance lane, the traffic direction of the third lane is a straight direction, and the traffic direction of the fourth lane is a right-turn direction.
S102: and determining whether the traffic lane to different directions has congestion unbalance condition in the first road section based on the congestion degree of the traffic lane to different directions in the first road section.
In a specific implementation, after the congestion degrees of the lanes to the different directions in the first road segment are determined, whether congestion unbalance conditions occur in the first road segment of the lanes to the different directions can be determined according to the congestion degrees of the lanes to the different directions in the first road segment, where congestion unbalance of the lanes to the different directions in the first road segment means that the congestion degrees of the lanes to the different directions in the first road segment are different, for example, the lanes to the first direction are smooth to pass through, and the lanes to the second direction are congested, and at this time, it is considered that the congestion degrees of the lanes to the different directions in the first road segment are different, that is, the congestion unbalance condition occurs in the first road segment.
In an example, the first road section comprises three lanes, wherein the passing direction of the first lane is a left-turn direction, the second lane is a variable guide lane, the passing direction of the third lane is a straight direction, the first lane passes through smoothly, and the third lane is congested, so that the first road section leads to the lanes in different directions to generate a congestion unbalance condition in the first road section.
Further, a congestion imbalance condition may be determined to occur in the first road segment for lanes leading to different directions if:
if the congestion degree of the lanes leading to the first direction is larger than or equal to a first preset congestion threshold value and the congestion degree of the lanes leading to the second direction is smaller than a second preset congestion threshold value, determining that the congestion unbalance condition of the lanes leading to different directions occurs in the first road section; the first direction and the second direction are directions corresponding to different lanes in the first road section.
In a specific implementation, if the congestion degree of the lane leading to the first direction is greater than or equal to a first preset congestion threshold value, it is indicated that traffic congestion occurs in the lane leading to the first direction, and if the congestion degree of the lane leading to the second direction is less than a second preset congestion threshold value, it is indicated that no traffic congestion occurs in the lane leading to the second direction.
The first preset congestion threshold is a threshold corresponding to a lane leading to a first direction when congestion is critical, and the second preset congestion threshold is a threshold corresponding to a lane leading to a second direction when congestion is critical.
Further, it may be determined that a congestion imbalance condition has not occurred in the first road segment for lanes leading to different directions:
and if the congestion degree of the lanes leading to each direction is larger than or equal to the preset congestion threshold corresponding to the direction, or the congestion degree of the lanes leading to each direction is smaller than the preset congestion threshold corresponding to the direction, determining that the congestion unbalance condition of the lanes leading to different directions does not occur in the first road section.
In a specific implementation, if the congestion degree of lanes leading to each direction is greater than or equal to a preset congestion threshold corresponding to the direction, which indicates that traffic congestion occurs in the lanes leading to each direction, it can be determined that no congestion imbalance occurs in the first section of the lanes leading to different directions; if the congestion degree of the lanes to each direction is smaller than the preset congestion threshold corresponding to the direction, the lanes to each direction are in a smooth traffic state, and it can be determined that the lanes to different directions are not in a congestion imbalance condition in the first road section.
S103: if so, carrying out linkage control on the guiding direction of the variable guiding lane and a traffic signal lamp in a second road section based on the congestion unbalance condition of the lanes to different directions in the first road section; the second road section is a road section of a vehicle source with congestion occurring in the first road section.
In a specific implementation, if it is determined that the traffic lane leading to the different direction is congested in the first road segment, the guidance direction of the variable guidance lane and the traffic lights in the second road segment may be controlled in an interlocking manner based on the congestion imbalance condition of the traffic lane leading to the different direction in the first road segment, specifically, on one hand, the guidance direction of the variable guidance lane may be set as the traffic direction of the traffic lane leading to the congestion in the first road segment to increase the number of traffic lanes leading to the traffic direction where the congestion occurs and increase the vehicle capacity of the traffic lane leading to the congestion to alleviate the congestion, and on the other hand, the number of vehicles on the traffic lane leading to the traffic direction where the congestion occurs may be reduced by controlling the traffic lights of the traffic lane leading to the congestion to the traffic direction where the congestion occurs, for example, shortening the traffic time of the vehicles leading to the traffic direction to further alleviate the congestion, like this, through carrying out coordinated control to the direction of guidance in variable direction lane and the traffic signal lamp in the second highway section, can effectively alleviate traffic jam fast, and then promote the current efficiency in lane, improve traffic capacity.
Here, the second link is a link from which vehicles jammed in the first link originate, where the second link includes, but is not limited to, a link connected to the first link, and a link within a preset distance range from the first link, and by reducing the number of vehicles from the second link to the lane jammed in the first link, the jam of the lane jammed in the first link can be alleviated.
Further, the determination of the second road segment is explained, i.e. the second road segment is determined according to the following steps:
and selecting a road section where vehicles leading to the congestion direction in the first road section are located from a plurality of candidate road sections associated with the first road section, and determining the second road section as the source of the vehicles with congestion.
In specific implementation, a plurality of candidate road segments associated with the first road segment are obtained, the candidate road segments include but are not limited to a road segment connected with the first road segment and a road segment within a preset distance range from the first road segment, a road segment where a vehicle leading to a congestion direction in the first road segment is located is selected from the plurality of candidate road segments, and the second road segment is determined as a second road segment of a vehicle source with congestion.
Further, when it is determined that the traffic jam imbalance condition occurs in the first road section in the lanes leading to different directions, it is necessary to control the guiding direction of the variable guiding lane so that the guiding direction of the variable guiding lane coincides with the direction corresponding to the traffic jam condition occurring in the lane leading to different directions, so that the vehicle accommodating amount in the passing direction of the traffic jam lane can be increased, and further, the traffic jam can be alleviated, specifically, when it is determined that the traffic jam imbalance condition occurs in the first road section in the lanes leading to different directions, the guiding direction of the variable guiding lane is determined according to the following steps:
and determining the direction corresponding to the lane with the congestion in the first road section as the guiding direction of the variable guiding lane.
In a specific implementation, when a lane to a certain direction in the first road section is congested, the direction corresponding to the lane with the congestion in the first road section may be determined as the guiding direction of the variable guiding lane, so that the vehicle accommodation amount in the passing direction of the congested lane may be increased, and the congestion may be further reduced.
It should be noted that after the guiding direction of the variable guiding lane is determined, the traffic signal lamps at the two ends of the first road section can be controlled in a linkage manner, specifically, the red light time of the traffic signal lamp entering the variable guiding lane can be prolonged, so that vehicles entering the variable guiding lane can be reduced, the green light time of the traffic signal lamp exiting the variable guiding lane can be prolonged, and so that vehicles exiting the variable guiding lane can be increased; in addition, traffic signal lamps at two ends of a lane in the congested first road section are controlled in the same mode, so that congestion can be further relieved, and lane passing efficiency is improved.
In addition, when the red light time of the traffic signal lamp at one end of the lane and the variable guide lane in which traffic jam occurs in the first road section is prolonged, the red light time of the traffic signal lamp corresponding to the end of the other lane in the first road section can be reduced, so that the display time of each signal lamp in the traffic signal lamp can be balanced.
Further, the step S103 of performing linkage control on the guidance direction of the variable guidance lane and the traffic lights in the second road segment based on the congestion imbalance condition of the first road segment to the lanes in different directions includes the following steps:
step a 1: and determining a current target guiding direction control scheme of the variable guiding lane and a target traffic signal lamp control scheme in the second road section based on the congestion unbalance condition of the lanes to different directions in the first road section.
In the specific implementation, when it is determined that the traffic jam imbalance condition occurs in the lanes leading to different directions in the first road section, a target guiding direction control scheme of the current variable guiding lane and a target traffic light control scheme in the second road section are determined based on the traffic jam degrees of the lanes in different directions. Here, the target guiding direction control scheme includes a guiding direction set by the variable guiding lane, and a guiding period associated with the guiding direction; the target traffic light control scheme includes display durations of different color light in the traffic light and display periods associated with the different color light for display.
Step a 2: and performing linkage control on the guiding direction of the variable guiding lane and the traffic signal lamp in the second road section according to the target guiding direction control scheme of the variable guiding lane and the target traffic signal lamp control scheme in the second road section.
In specific implementation, after a target guiding direction control scheme of a current variable guiding lane and a target traffic light control scheme in a second road section are determined, the guiding direction of the variable guiding lane is controlled according to the target guiding direction control scheme, and the traffic light in the second road section is controlled according to the target traffic light control scheme, namely, the guiding direction of the variable guiding lane and the traffic light in the second road section are subjected to linkage control when the condition of congestion unbalance of lanes leading to different directions in a first road section is determined.
Furthermore, a preset guiding direction control scheme can be set in advance according to historical traffic conditions, and the preset guiding direction control scheme associated with the current time is adjusted according to the congestion unbalance condition of lanes leading to different directions in the current first road section to obtain a target guiding direction control scheme of the variable guiding lane, so that the target guiding direction control scheme made according to the historical traffic data and the current traffic data is more consistent with the actual traffic conditions, and the traffic congestion condition can be relieved to a greater extent. Here, the guidance direction in the preset guidance direction control scheme may be adjusted, and also the guidance period associated with the guidance direction may be adjusted.
In one example, in the early peak time, according to the historical traffic condition of the first road section corresponding to the early peak time in each day, the preset guiding direction control scheme of the variable guiding lane in the first road section corresponding to the early peak time is worked out, but the traffic condition of the early peak time in each day is different, so that the preset guiding direction control scheme of the first road section corresponding to the early peak time can be adjusted according to the traffic condition of the current early peak time, and the target guiding direction control scheme of the variable guiding lane in the first road section corresponding to the current early peak time is obtained.
Here, a process of generating the preset guiding direction control scheme is explained, that is, the preset guiding direction control scheme is determined according to the following steps:
acquiring the congestion degree of lanes leading to different directions in the first road section of a historical time period within a preset historical number of days corresponding to the current time; and determining the preset guiding direction control scheme based on the acquired congestion degree of the lanes to different directions in the first road section in the historical time period.
In a specific implementation, the congestion degree of the lanes to different directions in the first road segment of the historical period within the preset historical days corresponding to the current time can be acquired, for example, the current time is 8:00 points earlier, the congestion degree to the lanes in different directions in the first road section including the period of 7:00-9:00 at the time of 8:00 within the current half month may be acquired, further, a preset guiding direction control scheme is determined based on the acquired degree of congestion of the lanes to different directions in the first section of the historical period, for example, in the first road section of the half month 7:00-9:00 time period, the lane in the left-turning direction is jammed, the lane in the straight-going direction is unblocked, the guidance direction of the variable guidance lane in the first road segment of the 7:00-9:00 time period may be set to the left turn direction, and the guidance time period associated with the guidance direction is 7:00-9: 00.
Further, a scheme for controlling a traffic light in a second road segment is explained, that is, the traffic light in the second road segment is controlled according to the following steps:
and shortening the passing time of the second road section to the lane in the congestion direction in the first road section, and prolonging the passing time of the second road section to the lane except for the congestion direction.
In the implementation, when the situation that the congestion imbalance occurs in the lanes leading to different directions in the first road section is determined, the guiding direction of the variable guiding lane in the first road section is controlled, in addition, the passing time of the lane leading to the congestion direction in the first road section in the second road section can be shortened, so that the number of vehicles entering the lane with the congestion can be reduced, the passing time of the lane leading to the direction except the congestion direction in the second road section is prolonged, and the display time of traffic lights with different colors can be balanced, wherein the second road section is the road section from which the vehicles with the congestion occur in the first road section.
In the embodiment of the application, whether congestion unbalance conditions of lanes leading to different directions occur in a first road section is determined through the acquired congestion degrees of the lanes leading to different directions in the first road section with the variable guide lane, and if the congestion unbalance conditions occur, linkage control is performed on the guide direction of the variable guide lane and a traffic signal lamp in a second road section on the basis of the congestion unbalance conditions of the lanes leading to different directions in the first road section, wherein the second road section is a road section from which vehicles are congested in the first road section. Therefore, when the situation of congestion unbalance occurs in the first road section with the variable guide lane, the traffic congestion can be quickly and effectively relieved by performing linkage control on the guide direction of the variable guide lane and the traffic signal lamp in the second road section, and the traffic efficiency of the lane is improved.
Based on the same application concept, the embodiment of the present application further provides a traffic passage control system corresponding to the traffic passage control method provided in the above embodiment, and as the principle of solving the problem of the system in the embodiment of the present application is similar to the traffic passage control method in the above embodiment of the present application, the implementation of the system may refer to the implementation of the method, and repeated details are not repeated.
As shown in fig. 3 and fig. 4, fig. 3 is a schematic structural diagram illustrating a traffic passage control system 300 according to an embodiment of the present application; fig. 4 shows a second schematic structural diagram of a traffic passage control system 300 according to an embodiment of the present application.
As shown in fig. 3, the control system 300 for traffic passage includes an acquisition device 310 and a central control server 320;
the collecting device 310 is used for collecting the traffic flow of the first road section with the variable guide lane to the lanes in different directions and sending the traffic flow to the central control server 320;
the central control server 320 is configured to determine congestion degrees of lanes leading to different directions in the first road segment according to the traffic flow, and determine whether a congestion imbalance condition occurs in the first road segment for the lanes leading to the different directions based on the congestion degrees;
the central control server 320 is further configured to perform linkage control on the guiding direction of the variable guiding lane and the traffic signal lamp in the second road segment based on a congestion unbalance condition when it is determined that the traffic signal lamp in the second road segment is in the congestion unbalance condition in the first road segment; the second road section is a road section of a vehicle source with congestion occurring in the first road section.
Here, the acquisition device 310 includes, but is not limited to, a detector, a traffic signal, a road network camera, a vehicle-mounted camera, and the like, and a multi-source data fusion platform is constructed based on the vehicle track data, the detector data, the road network data, the vehicle-mounted video data, and the like acquired by the acquisition device 310, and the data is accessed, cleaned, fused, and stored, on the basis of which the degree of congestion of the lanes leading to different directions in the first road segment is determined.
It should be noted that the traffic passing control system 300 has multiple layers, including an application layer, an algorithm layer, a communication layer, a hardware layer and a data layer, wherein the application layer includes an application server group, the algorithm layer includes an algorithm server group, here, both the application server group and the algorithm server group belong to a server group in the central control server 320, the communication layer includes optical fiber communication, network cable communication and wireless communication, the hardware layer includes a lane indicator, a variable lane controller, a signal machine, a mobile terminal, a detector and a signal lamp, and the data layer includes network data, detector data, network appointment data and vehicle-mounted camera data.
The data layer is mainly composed of hardware equipment and is the core for collecting traffic data information, and a signal control platform based on internet data builds a standardized traffic information sensing unit to provide original traffic data for a traffic information sharing center. The selection principle of the equipment and the facilities is compatibility and upgradability, the collected data can provide data for various applications in the intelligent traffic system at the same time, and the repeated construction of the infrastructure is avoided. The hardware layer comprises collection equipment such as internet floating car data, detectors and signal machines, and the data are stored in the intelligent traffic data information sharing platform through a network to form the most original traffic data source. The road network data provides basic road information, such as lane functions, the number of lanes of an inlet road, the number of lanes of an outlet road and the like, and provides basic data for road network analysis; the detector data provides accurate data of traffic flow in urban roads, the congestion condition of the vehicles is judged in real time through the detector data, and congestion judgment, time interval judgment and the like are carried out through the traffic data; the method comprises the steps that floating car data provide all steering road conditions of an urban road, traffic running quantity data between traffic starting and ending points are analyzed in time, congestion sources are analyzed, and a main path is analyzed based on a congested road section; the vehicle-mounted camera data provides all-dimensional scanning for road conditions, and the vehicle-mounted camera data can be used for verifying the diagnosed intersection.
The communication layer is used for supporting the whole intelligent traffic, supporting various network access modes, providing a data transmission channel for an intelligent traffic system, and transmitting data to a central data information sharing platform through the network layer. Hardware in the system supports multiple communication modes, the front-end data acquisition equipment transmits data to a back-end server group through different communication modes, the server group transmits information such as timing instructions and guidance schemes to a guidance screen, a variable guidance lane controller and a signal cabinet through network transmission after calculation.
It should be noted that, with the control system 300 for traffic passage provided by the present application, by combining the service appeal of the traffic management department and the data, service and computing power of the traffic management department, by integrating the internet information and the data information of the traffic management departments of various regions, based on the internet big data platform and the cloud computing service capability, processing massive mobile internet data and fusing the traditional traffic data, cleaning, purifying, checking and complementing the data, completing the evaluation of the urban traffic real-time and historical operating states and the problem diagnosis of intersections, finding the traffic problem, outputting the prediction of the future road traffic condition according to the real-time and historical data, and further, providing a disposal scheme.
In one possible implementation, as shown in fig. 3, the central control server 320 is specifically configured to determine that congestion imbalance occurs in the first road segment in lanes leading to different directions according to the following steps:
if the congestion degree of the lanes leading to the first direction is larger than or equal to a first preset congestion threshold value and the congestion degree of the lanes leading to the second direction is smaller than a second preset congestion threshold value, determining that the congestion unbalance condition of the lanes leading to different directions occurs in the first road section;
the first direction and the second direction are directions corresponding to different lanes in the first road section.
In one possible embodiment, as shown in fig. 3, the central control server 320, when determining that a congestion imbalance condition occurs in the first road segment in lanes leading to different directions, is configured to determine the guidance direction of the variable guidance lane according to the following steps:
and determining the direction corresponding to the lane with the congestion in the first road section as the guiding direction of the variable guiding lane.
In one possible embodiment, as shown in fig. 4, the control system 300 for traffic passage further includes a signal cabinet 330 and a variable guide lane controller 340;
the central control server 320 is configured to determine a current target guidance direction control scheme of the variable guidance lane and a target traffic light control scheme in the second road segment based on a congestion imbalance condition of lanes leading to different directions in the first road segment, send the target guidance direction control scheme to the variable guidance lane controller 340, and send the target traffic light control scheme to the signal cabinet 330;
the signal cabinet 330 is configured to, after receiving the target traffic light control scheme, control the traffic light in the second road segment according to the target traffic light control scheme;
the variable guidance lane controller 340 is configured to, after receiving the target guidance direction control scheme, control the guidance direction of the variable guidance lane in the first road segment according to the target guidance direction control scheme.
Here, the signal cabinet 330 is used to control the display duration of each color signal lamp in the traffic signal lamps, and the variable guide lane controller 340 is used to control the guide direction displayed by the signal display screen of the variable guide lane.
In a possible embodiment, as shown in fig. 4, the central control server 320 is configured to adjust a preset guidance direction control scheme associated with a current time according to a congestion imbalance condition of lanes leading to different directions in the first road segment, so as to obtain a target guidance direction control scheme of the variable guidance lane.
In one possible embodiment, as shown in fig. 4, the central control server 320 is configured to determine the preset guiding direction control scheme according to the following steps:
acquiring the congestion degree of lanes leading to different directions in the first road section of a historical time period within a preset historical number of days corresponding to the current time;
and determining the preset guiding direction control scheme based on the acquired congestion degree of the lanes to different directions in the first road section in the historical time period.
In one possible embodiment, as shown in fig. 3, the central control server 320 is configured to determine the second road segment according to the following steps:
and selecting a road section where vehicles leading to the congestion direction in the first road section are located from a plurality of candidate road sections associated with the first road section, and determining the second road section as the source of the vehicles with congestion.
In one possible embodiment, as shown in fig. 3, the central control server 320 is further configured to shorten the transit time to the traffic lane in the congestion direction in the first link in the second link, and to lengthen the transit time to the traffic lane except for the congestion direction in the second link.
In the embodiment of the application, whether congestion unbalance conditions of lanes leading to different directions occur in a first road section is determined through the acquired congestion degrees of the lanes leading to different directions in the first road section with the variable guide lane, and if the congestion unbalance conditions occur, linkage control is performed on the guide direction of the variable guide lane and traffic lights in a second road section based on the congestion unbalance conditions of the lanes leading to different directions in the first road section, wherein the second road section is a road section from which vehicles congestion occurs in the first road section. Therefore, when the congestion unbalance condition occurs in the first road section with the variable guide lane, the traffic congestion can be quickly and effectively relieved by performing linkage control on the guide direction of the variable guide lane and the traffic signal lamp in the second road section, and the road passing efficiency is improved.
Based on the same application concept, referring to fig. 5, a schematic structural diagram of an electronic device 500 provided in the embodiment of the present application includes: a processor 510, a memory 520 and a bus 530, wherein the memory 520 stores machine-readable instructions executable by the processor 510, when the electronic device 500 is running, the processor 510 communicates with the memory 520 via the bus 530, and the machine-readable instructions are executed by the processor 510 to perform the steps of the method for controlling traffic passage according to any of the above embodiments.
In particular, the machine readable instructions, when executed by the processor 510, may perform the following:
acquiring congestion degrees of lanes leading to different directions in a first road section with a variable guiding lane;
determining whether the lanes leading to different directions have congestion unbalance conditions in the first road section based on the congestion degrees of the lanes leading to different directions in the first road section;
if so, carrying out linkage control on the guiding direction of the variable guiding lane and a traffic signal lamp in a second road section based on the congestion unbalance condition of the lanes to different directions in the first road section; the second road section is a road section of a vehicle source with congestion occurring in the first road section.
In the embodiment of the application, whether congestion unbalance conditions of lanes leading to different directions occur in a first road section is determined through the acquired congestion degrees of the lanes leading to different directions in the first road section with the variable guide lane, and if the congestion unbalance conditions occur, linkage control is performed on the guide direction of the variable guide lane and a traffic signal lamp in a second road section on the basis of the congestion unbalance conditions of the lanes leading to different directions in the first road section, wherein the second road section is a road section from which vehicles are congested in the first road section. Therefore, when the congestion unbalance condition occurs in the first road section with the variable guide lane, the traffic congestion can be quickly and effectively relieved by performing linkage control on the guide direction of the variable guide lane and the traffic signal lamp in the second road section, and the road passing efficiency is improved.
Based on the same application concept, the embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the control method for traffic passage provided by the above embodiment are executed.
Specifically, the storage medium can be a general storage medium, such as a mobile disk, a hard disk, and the like, when a computer program on the storage medium is executed, the control method for traffic passage can be executed, and by performing linkage control on the guide direction of the variable guide lane and the traffic signal lamp in the second road section, traffic congestion can be quickly and effectively alleviated, and further road passage efficiency is improved.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the system described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again. In the several embodiments provided in the present application, it should be understood that the disclosed system and method may be implemented in other ways. The above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and there may be other divisions in actual implementation, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of systems or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (18)
1. A control method of traffic passage, characterized in that it comprises:
acquiring congestion degrees of lanes leading to different directions in a first road section with a variable guiding lane;
determining whether the lanes leading to different directions have congestion unbalance conditions in the first road section based on the congestion degrees of the lanes leading to different directions in the first road section;
if so, carrying out linkage control on the guiding direction of the variable guiding lane and a traffic signal lamp in a second road section based on the congestion unbalance condition of the lanes to different directions in the first road section; the second road section is a road section of a vehicle source with congestion occurring in the first road section.
2. The control method according to claim 1, characterized in that a congestion unbalance situation is determined in the first section for lanes leading to different directions if:
if the congestion degree of the lanes leading to the first direction is larger than or equal to a first preset congestion threshold value and the congestion degree of the lanes leading to the second direction is smaller than a second preset congestion threshold value, determining that the congestion unbalance condition of the lanes leading to different directions occurs in the first road section;
the first direction and the second direction are directions corresponding to different lanes in the first road section.
3. The control method of claim 1, wherein upon determining that a congestion imbalance condition occurs in the first segment in lanes leading to different directions, determining the guidance direction for the variable guidance lane is in accordance with the steps of:
and determining the direction corresponding to the lane with the congestion in the first road section as the guiding direction of the variable guiding lane.
4. The control method according to claim 1, wherein the linkage control of the guiding direction of the variable guiding lane and the traffic signal lamp in the second road section based on the congestion unbalance condition of the lanes to different directions in the first road section comprises:
determining a current target guiding direction control scheme of the variable guiding lane and a target traffic signal lamp control scheme in the second road section based on the congestion unbalance condition of lanes leading to different directions in the first road section;
and performing linkage control on the guiding direction of the variable guiding lane and the traffic signal lamp in the second road section according to the target guiding direction control scheme of the variable guiding lane and the target traffic signal lamp control scheme in the second road section.
5. The control method according to claim 4, wherein the determining a current target guiding direction control scheme of the variable guiding lane based on the congestion unbalance condition of the lanes leading to different directions in the first road section comprises:
and adjusting a preset guiding direction control scheme associated with the current moment according to the congestion unbalance condition of the lanes leading to different directions in the first road section to obtain a target guiding direction control scheme of the variable guiding lane.
6. The control method according to claim 5, wherein the preset steering direction control scheme is determined according to the following steps:
acquiring the congestion degree of lanes leading to different directions in the first road section of a historical time period within a preset historical number of days corresponding to the current time;
and determining the preset guiding direction control scheme based on the acquired congestion degree of the lanes to different directions in the first road section in the historical time period.
7. The control method according to claim 1, characterized in that the second road segment is determined according to the following steps:
and selecting a road section where vehicles leading to the congestion direction in the first road section are located from a plurality of candidate road sections associated with the first road section, and determining the second road section as the source of the vehicles with congestion.
8. The control method according to claim 1, characterized in that the traffic signal light in the second road segment is controlled according to the following steps:
and shortening the passing time of the second road section to the lane in the congestion direction in the first road section, and prolonging the passing time of the second road section to the lane except for the congestion direction.
9. The control system for traffic passage is characterized by comprising acquisition equipment and a central control server;
the acquisition equipment is used for acquiring traffic flow of lanes to different directions in a first road section with a variable guide lane and sending the traffic flow to the central control server;
the central control server is used for determining the congestion degrees of the lanes leading to different directions in the first road section according to the traffic flow, and determining whether the lanes leading to different directions have congestion unbalance conditions in the first road section based on the congestion degrees;
the central control server is further used for carrying out linkage control on the guiding direction of the variable guiding lane and the traffic signal lamp in the second road section based on the congestion unbalance condition when the congestion unbalance condition of the lanes leading to different directions in the first road section is determined; the second road section is a road section of a vehicle source with congestion occurring in the first road section.
10. The control system of claim 9, wherein the central control server is specifically configured to determine that a congestion imbalance condition occurs in the first segment for lanes leading to different directions according to the following steps:
if the congestion degree of the lanes leading to the first direction is larger than or equal to a first preset congestion threshold value and the congestion degree of the lanes leading to the second direction is smaller than a second preset congestion threshold value, determining that the congestion unbalance condition of the lanes leading to different directions occurs in the first road section;
the first direction and the second direction are directions corresponding to different lanes in the first road section.
11. The control system of claim 9, wherein the central control server, when determining that a congestion imbalance condition occurs in the first segment for lanes leading to different directions, is configured to determine the guidance direction for the variable guidance lane according to the following steps:
and determining the direction corresponding to the lane with the congestion in the first road section as the guiding direction of the variable guiding lane.
12. The control system of claim 9, further comprising a signal cabinet and a variable directional lane controller;
the central control server is used for determining a current target guiding direction control scheme of the variable guiding lane and a target traffic signal lamp control scheme in the second road section based on the congestion unbalance condition of lanes leading to different directions in the first road section, sending the target guiding direction control scheme to the variable guiding lane controller and sending the target traffic signal lamp control scheme to the signal cabinet;
the signal cabinet is used for controlling the traffic signal lamp in the second road section according to the target traffic signal lamp control scheme after the target traffic signal lamp control scheme is received;
and the variable guide lane controller is used for controlling the guide direction of the variable guide lane in the first road section according to the target guide direction control scheme after receiving the target guide direction control scheme.
13. The control system of claim 12,
the central control server is used for adjusting a preset guiding direction control scheme associated with the current moment according to the congestion unbalance condition of the lanes leading to different directions in the first road section to obtain a target guiding direction control scheme of the variable guiding lane.
14. The control system of claim 13, wherein the central control server is configured to determine the preset steering direction control scheme according to the following steps:
acquiring the congestion degree of lanes leading to different directions in the first road section of a historical time period within a preset historical number of days corresponding to the current time;
and determining the preset guiding direction control scheme based on the acquired congestion degree of the lanes to different directions in the first road section in the historical time period.
15. The control system of claim 9, wherein the central control server is configured to determine the second road segment according to the following steps:
and selecting a road section where vehicles leading to the congestion direction in the first road section are located from a plurality of candidate road sections associated with the first road section, and determining the second road section as the source of the vehicles with congestion.
16. The control system of claim 9, wherein the central control server is further configured to shorten a transit time to a lane in the first road segment that is congested in the second road segment, and to lengthen a transit time to a lane in the second road segment that is other than congested in the first road segment.
17. An electronic device, comprising: processor, memory and bus, the memory storing machine-readable instructions executable by the processor, the processor and the memory communicating via the bus when the electronic device is running, the machine-readable instructions being executed by the processor to perform the steps of the method for controlling traffic passage according to any one of claims 1 to 8.
18. A computer-readable storage medium, characterized in that it has stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for controlling the passage of traffic according to any one of claims 1 to 8.
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