CN108648460B - Intersection feature-based one-drag-two intersection traffic signal scheme configuration system - Google Patents
Intersection feature-based one-drag-two intersection traffic signal scheme configuration system Download PDFInfo
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Abstract
The invention provides a one-drag-two-linkage intersection traffic signal scheme configuration system based on intersection characteristics, which provides a phase sequence configuration flow for an intersection based on intersection canalization characteristics of a linkage control intersection and signaler parallel connection line information to realize configuration management of a signal scheme and specifically comprises a basic information management module, a lamp group management module, a phase sequence configuration module and a scheme configuration module; the one-drag-two intersection traffic control signal scheme configuration system based on the intersection characteristics identifies the afflux and evacuation traffic flow of a connecting road section according to the intersection characteristics on the basis of basic information configuration of canalization and detection equipment, signal lamp groups and conflict configuration thereof and conventional intersection passing phase configuration, and reasonably judges the configured phase stages and sequence thereof to provide the most reasonable phase sequence, thereby preparing a signal scheme according to traffic flow, greatly improving the configuration efficiency of the one-drag-two intersection and providing a third party configuration system for users.
Description
Technical Field
The invention relates to a one-drag-two intersection traffic signal scheme configuration system based on intersection characteristics.
Background
With the acceleration of the urbanization process, the number of traffic signal control intersections is gradually increased, signal control systems are continuously developed, at present, more and more cities control two adjacent intersections by using one signal machine, but the management of the traffic signal control intersection with one driving two lacks of effective management means and phase configuration methods.
At present, "one drags two" joint control intersections in cities, especially the closer adjacent intersections, are generally comprehensively considered by a signal control professional team according to information such as intersection characteristics, traffic conditions and the like, the two intersections are combined and configured, a configuration system of a third party is not provided, and a signal scheme set by the professional team is manually input into the signal control scheme management system in the existing signal control scheme management system. Therefore, electronic signal scheme management is lacked, and the later-stage optimization configuration still depends on a professional team, which is inconvenient for self-management of a public security traffic management department, and a signal scheme configuration subsystem for an unconventional intersection (a one-to-two joint control intersection) needs to be added in the existing traffic signal ledger management system to realize configuration management of the joint control intersection signal scheme.
Disclosure of Invention
The invention aims to provide a one-drag-two-control intersection traffic signal scheme configuration system based on intersection characteristics, and solves the problems that electronic signal scheme management is lacked, and later-stage optimization configuration still depends on a professional team and is inconvenient to manage by oneself in the prior art.
The application and implementation of the one-driving-two-connection intersection traffic signal scheme configuration system based on intersection characteristics effectively solve the problem that a professional team needs to jointly consider two intersections to realize signal scheme configuration at the existing stage of the intersection, and on the basis of respectively configuring channelized information, lamp sets, phases and other information of the two intersections, the reasonability of the phase sequence of the traffic flow is judged by identifying the direction of the incoming and the evacuation traffic flow of the connecting road section to avoid the congestion of the connecting road section as the target to configure the number of the phase stages and the phase sequence, so that the configuration efficiency of the signal scheme of the intersection is greatly improved.
The technical solution of the invention is as follows:
a one-drag-two-linkage intersection traffic signal scheme configuration system based on intersection characteristics provides a phase sequence configuration flow for an intersection based on intersection canalization characteristics of a linkage control intersection and signaler parallel connection line information to realize configuration management of a signal scheme, and specifically comprises a basic information management module, a lamp group management module, a phase sequence configuration module and a scheme configuration module,
basic information management module: preparing intersection basic information according to intersection characteristics of the joint control intersection and detection equipment thereof;
the lamp group management module is used for setting the type of the traffic signal lamp at the intersection and configuring a conflict lamp group according to the actual wiring information of the annunciator;
a phase management module: respectively configuring the settable passing phases of the two intersections, and establishing an afflux evacuation traffic flow conflict table based on the intersection characteristics;
a phase sequence configuration module: carrying out configuration management on the phase sequence of the two intersections according to the basic phase information, the lamp group conflict information and the traffic flow convergence conflict information of the lamp group management module and the phase management module;
a scheme configuration module: and configuring the duration of the green light of each phase according to the configuration sequence based on the traffic flow information acquired by the front-end vehicle detector.
Further, the basic information management module comprises an intersection canalization configuration unit and a detection device configuration unit,
intersection canalization configuration unit: respectively configuring channelized information of two intersections, connection directions of the two intersections and connection road section distances based on a GIS electronic map, an intersection plane schematic diagram and a list, wherein the channelized information comprises intersection shapes, intersection to-be-turned areas, safety islands, pedestrian crossings, dividing strips, the number of imported lanes, lane widths and dividing strip bandwidths;
a detection device configuration unit: and configuring and binding the detection equipment type and position of the intersection, and displaying the binding equipment information of each direction of the intersection in a list, wherein the binding equipment information comprises the equipment type, the equipment IP, the equipment name, the number of detected lanes and the detection distance.
Further, the lamp group management module comprises a lamp group configuration unit and a lamp group conflict unit,
a lamp group configuration unit: setting lamp groups in the direction of each entrance lane of two intersections based on an intersection plane schematic diagram and a list, wherein the lamp groups specifically comprise directions, lamp group types, release directions, signal machine channels and terminals, and simultaneously marking out a parallel lamp group;
a lamp group conflict unit: and establishing a lamp group conflict table based on the signal lamp groups of the two intersections, presenting the signal lamp groups with direct-running conflict, steering conflict and direct-running and steering conflict in the lamp group conflict table, and marking the parallel lamp groups in the lamp group conflict table.
Further, the phase management module comprises a basic phase configuration unit and an influx conflict configuration unit,
basic phase configuration unit: respectively configuring basic phase information which can be set in a conventional state of two intersections according to the parallel information and the conflict information of the lamp group configuration module, wherein the basic phase information specifically comprises a phase name, lamp group information, yellow flashing lamp time, full red lamp time, shortest green lamp time and longest green lamp time;
an import conflict configuration unit: and identifying the directions of the incoming traffic flow and the evacuation traffic flow of the road sections connected with the intersection according to the intersection canalization information and the connection direction information between the two intersections, and establishing an incoming evacuation traffic flow conflict table on the basis of the phase information.
Further, in the merge collision configuration unit, the merge evacuation traffic collision table specifically includes a road junction name, a phase name (traffic direction), light group information, a connection direction, whether to merge (merge direction), and whether to evacuate (evacuation direction).
Furthermore, in the phase sequence configuration module, the rationality of the phase sequence is judged according to a phase sequence scheme configured by a user, so that the phase sequence rationality configuration is realized.
Further, in the phase sequence configuration module, the rational configuration of the phase sequence is realized, specifically,
s1, screening the phase of the intersection based on the basic phase information in the phase sequence configuration module;
s2, if the lamp group involved in the phase position is connected in parallel with the lamp group of another intersection, the corresponding phase position of the other intersection must be the lamp group phase position which is connected in parallel with the lamp group involved in the intersection phase position, otherwise, the next step S3 is directly carried out;
s3, comparing the merging conflict table in the phase sequence configuration module, if the merging traffic flow of the connecting road section exists in the phase, selecting the phase of the evacuation traffic flow at the phase corresponding to another intersection and the phase of the next intersection, otherwise, randomly selecting the phase;
and S4, circulating until the periodic phase sequence is completed and the direction of each right of way is passed.
The invention has the beneficial effects that:
the system can identify the direction of incoming and evacuated traffic flows of a connecting road section according to two road mouth canalization connecting information and lamp group parallel information, establish an outgoing lamp group conflict table and an incoming evacuated traffic flow conflict table, and assist the configuration of a joint control road junction phase scheme.
The configuration system of the one-driving-two-linkage intersection traffic signal scheme based on the intersection characteristics identifies the junction road section to converge and evacuate traffic flows according to the intersection characteristics on the basis of basic information configuration of canalization and detection equipment, signal lamp groups and conflict configuration thereof and conventional intersection passing phase configuration, and reasonably judges the configured phase stages and sequence thereof to provide the most reasonable phase sequence, so that the signal scheme is configured according to the traffic flow, the configuration efficiency of the one-driving-two-linkage intersection is greatly improved, and a third-party configuration system is provided for users.
The system provided by the invention also relates to a one-driving-two joint control intersection phase sequence configuration method, and scheme stages and phase sequences of two intersections are configured by converging the evacuation traffic flow conflict table, so that the rationality of the phase sequence is judged, and the efficient configuration of a signal phase scheme is realized.
Drawings
Fig. 1 is a schematic structural diagram of a one-drag-two control intersection traffic signal scheme configuration system based on intersection characteristics according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of implementing phase sequence rationality configuration in the phase sequence configuration module in the embodiment.
Fig. 3 is a schematic diagram of channelized information of intersection a and intersection B in the embodiment.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
A system for configuring a traffic signal scheme of a one-drive-two-linkage intersection based on intersection characteristics provides a phase sequence configuration flow for the intersection based on intersection canalization characteristics of the linkage control intersection and signaler parallel connection line information, so that configuration management of the signal scheme is achieved, and the system shown in figure 1 specifically comprises a basic information management module, a lamp group management module, a phase sequence configuration module and a scheme configuration module.
Provides a phase sequence configuration flow for the intersection based on intersection canalization characteristics of the joint control intersection and signaler parallel connection line information to realize configuration management of a signal scheme, and particularly comprises a basic information management module, a lamp group management module, a phase sequence configuration module and a scheme configuration module,
the basic information management module is used for preparing intersection basic information according to intersection characteristics of the joint control intersection and detection equipment thereof and providing support for the lamp group management module and the phase management module; the system specifically comprises an intersection channelizing configuration unit and a detection equipment configuration unit.
Intersection canalization configuration unit: and respectively configuring channelized information (intersection shape, intersection to-be-turned area, safety island, pedestrian crossing, division strip, number of imported lanes, lane width and division strip bandwidth) of the two intersections, and connecting directions and connecting road section distances of the two intersections based on the GIS electronic map, the intersection plane schematic diagram and the list.
A detection device configuration unit: and configuring and binding the detection equipment type and position of the intersection, and displaying the binding equipment information of each direction of the intersection in a list, wherein the binding equipment information comprises the equipment type, the equipment IP, the equipment name, the number of detected lanes and the detection distance.
And the lamp group management module is used for setting the type of the traffic signal lamp of the intersection and configuring the conflict lamp group according to the intersection characteristic information of the basic information management module and the wiring information of the signal machine, and sending the conflict information of the lamp group to the phase management module and the phase sequence configuration module.
And the lamp group configuration unit is used for setting the lamp groups in the directions of the entrance lanes of the two intersections based on the intersection plane schematic diagram and the list, specifically comprises the direction, the lamp group type, the release direction, the signal machine channel and the terminal, and simultaneously marks out the parallel lamp groups.
And the lamp group conflict unit is used for establishing a lamp group conflict table based on the signal lamp groups of the two intersections, presenting the signal lamp groups with direct conflict, steering conflict and direct and steering conflict in the lamp group conflict table, and marking the parallel lamp groups in the lamp group conflict table.
A phase management module: the traffic conflict information of the lamp group management module is used for configuring the passing phases of the two intersections, establishing a confluent evacuation traffic conflict table based on the intersection characteristics of the basic information management module, and further sending the confluent evacuation traffic conflict information to the phase sequence configuration module.
Basic phase configuration unit: and respectively configuring basic phase information which can be set in the conventional states of the two intersections according to the parallel information and the lamp group conflict information of the lamp group management module, wherein the basic phase information specifically comprises a phase name, lamp group information, yellow flashing lamp duration, full red lamp duration, shortest green lamp time and longest green lamp time. In general, if there are no crossing lights connected in parallel at a crossing, there are 16 crossing signal phases.
And the confliction configuration unit identifies the confluent and evacuation traffic flow directions of the road sections connected with the intersections according to the intersection canalization information and the connection direction information between the two intersections, and establishes a confluent and evacuation traffic flow confluent table on the basis of the phase information, wherein the confluent and evacuation traffic flow confluent table specifically comprises the intersection name, the phase name (the passing direction), the lamp group information, the connection direction, whether to confluent (the confluent direction) and whether to evacuate (the evacuation direction).
A phase sequence configuration module: and configuring and managing the phase sequence of the two intersections according to the basic phase information, the lamp group conflict information and the traffic flow convergence conflict information of the lamp group management module and the phase management module, and sending the phase sequence to the scheme configuration module.
According to the characteristics of the one-driving-two joint control intersection, the default is that the phase stages of the two intersections are consistent in number and the green light duration of each stage is consistent. Generally, if intersection a is a four-stage phase, intersection B is also a four-stage phase, and if intersection a is a crossroad and intersection B is a T-shaped intersection, intersection B adds a single-playing phase while having a three-stage phase when intersection a is a four-stage phase.
Meanwhile, the rationality of the phase sequence is judged according to a phase sequence scheme configured by a user, and the rationality configuration of the phase sequence is realized, as shown in fig. 2, the specific method is as follows:
s1, screening the phase of the intersection based on basic phase information in a phase sequence configuration module;
s2, if the lamp group related to the phase position is connected in parallel with the lamp group of another intersection, the corresponding phase position of the other intersection must be the lamp group phase position which is connected in parallel with the lamp group related to the intersection phase position, and the step S4 is carried out, otherwise, the next step is directly carried out;
s3, comparing an influx conflict table in the phase sequence configuration module, if the phase has influx traffic flow of a connecting road section, selecting an evacuation traffic flow phase for the phase of the corresponding phase and the next phase of another intersection, otherwise, randomly selecting the phase;
and S4, determining a phase scheme of the next stage, and circulating until the periodic phase sequence is completed and all the directions for setting the right of way pass.
A scheme configuration module: and the duration of the phase green light of each stage is configured based on the traffic flow information acquired by the front-end vehicle detector and the configuration phase sequence of the phase sequence configuration module.
The system for configuring the traffic signal scheme of the one-drag-two control intersection based on the intersection characteristics is applied to the existing traffic signal ledger management system and specifically comprises a basic information management module, a lamp group management module, a phase sequence configuration module and a scheme configuration module, wherein the basic information management module is used for acquiring and configuring channelized information and detection equipment information of two intersections; the lamp group management module sets signal lamp groups of two intersections and establishes a conflict list of the two intersection signal lamp groups according to intersection traffic flow; the phase management module respectively prepares the conventional passing phases of the two intersections, and simultaneously identifies the directions of the incoming traffic and the evacuation traffic of the connecting road section according to the canalization characteristics of the intersections to establish an incoming evacuation conflict table; the phase sequence configuration module is used for configuring phase stages and phase sequences according to the confluent evacuation conflict table and the parallel information of the lamp groups in stages; the scheme configuration module is used for preparing a phase scheme according to the traffic flow on the basis of the existing phase sequence.
The one-drag-two intersection traffic control signal scheme configuration system based on the intersection characteristics identifies the afflux and evacuation traffic flow of a connecting road section according to the intersection characteristics on the basis of basic information configuration of canalization and detection equipment, signal lamp groups and conflict configuration thereof and conventional intersection passing phase configuration, and reasonably judges the configured phase stages and sequence thereof to provide the most reasonable phase sequence, thereby preparing a signal scheme according to traffic flow, greatly improving the configuration efficiency of the one-drag-two intersection and providing a third party configuration system for users.
One specific example of an embodiment is as follows:
intersections of a certain road section Y, an X1 road section and an X2 road section are respectively an intersection A and an intersection B, wherein the intersection A is a crossroad, the intersections B are T-shaped intersections, and concrete canalization is as shown in figure 3:
after the detection devices of the two intersections are bound, signal lamp groups of the two intersections are set, and a lamp group conflict table is established as follows, wherein the south disc lamp of the intersection A is connected with the south disc lamp of the intersection B in parallel.
And further respectively configuring the conventional passing phases which can be set at the intersection A and the intersection B, and meanwhile, in the intersection with one driving two, the intersection A is connected with the intersection B in the east-west direction, so that the confliction table of the incoming evacuation traffic flow is established based on the road section connecting direction (east-west connection).
Further configuring the phase sequence of the intersection A and the intersection B: determining that the number of phase phases at intersection a is four phases, intersection B must also be four-phase. Meanwhile, when the first stage of the intersection A selects the south-north straight-going, the south disc lamp of the intersection A is connected with the south disc lamp of the intersection B in parallel, and the first stage of the intersection B also needs to comprise the south-direction passing of the south disc lamp.
The phase of the second stage is further selected to turn left from north to south, the phase has an influx traffic flow on the west side of the connecting road section, the second stage and the third stage of the intersection B should select an evacuation traffic flow (west traffic/east traffic), meanwhile, the east traffic flow is caused on the short-circuited section in the previous stage, the second stage should avoid the reentry, the west traffic is selected, the third stage should select the east straight, the third stage of the intersection A should provide an evacuation phase, the east straight is provided, and meanwhile, the fourth stage of the intersection A and the intersection B is a stage without the reentry and evacuation, namely, the intersection A turns left from east, and the intersection B turns left from east.
In summary, the phase sequence (phase) of intersection a and intersection B is as follows:
solving the lowest green time of each stage according to traffic flow data, and configuring the green light time length of each stage, wherein the final green light time length is 110s, and the green light time length of each stage is 35s, 20s, 22s and 18 s.
Claims (5)
1. A one-drag-two intersection traffic signal scheme configuration system based on intersection characteristics is characterized in that: provides a phase sequence configuration flow for the intersection based on intersection canalization characteristics of the joint control intersection and signaler parallel connection line information to realize configuration management of a signal scheme, and particularly comprises a basic information management module, a lamp group management module, a phase sequence configuration module and a scheme configuration module,
basic information management module: intersection basic information is prepared according to intersection characteristics of the joint control intersection and detection equipment thereof, and support is provided for the lamp group management module and the phase management module;
the lamp group management module is used for setting the type of an intersection traffic signal lamp and configuring a conflict lamp group according to the intersection characteristic information of the basic information management module and the wiring information of the signal machine, and sending the lamp group conflict information to the phase management module and the phase sequence configuration module;
a phase management module: respectively configuring the settable passing phases of the two intersections based on the lamp group conflict information of the lamp group management module, establishing an afflux evacuation traffic flow conflict table based on the intersection characteristics of the basic information management module, and further sending the phase conflict information to the phase sequence configuration module; the phase management module comprises a basic phase configuration unit and an influx conflict configuration unit,
basic phase configuration unit: respectively configuring basic phase information which can be set in the conventional states of the two intersections according to the parallel information and the lamp group conflict information of the lamp group management module, wherein the basic phase information specifically comprises a phase name, lamp group information, yellow flashing lamp duration, full red lamp duration, shortest green lamp time and longest green lamp time;
an import conflict configuration unit: identifying the direction of the incoming and the evacuation traffic flows of the road sections connected with the intersection according to the intersection canalization information and the connection direction information between the two intersections, and establishing an incoming evacuation traffic flow conflict table on the basis of the phase information; the incoming and evacuation traffic flow conflict table specifically comprises a crossing name, a passing direction phase name, lamp group information, a connection direction, whether to be incoming and an incoming direction thereof, and whether to be evacuated and an evacuation direction thereof;
a phase sequence configuration module: configuring and managing the phase sequence of the two intersections according to the basic phase information, the lamp group conflict information and the traffic flow convergence conflict information of the lamp group management module and the phase management module, and sending the phase sequence to the scheme configuration module;
a scheme configuration module: and the duration of the phase green light of each stage is configured based on the traffic flow information acquired by the front-end vehicle detector and the configuration phase sequence of the phase sequence configuration module.
2. The intersection feature-based one-drag-two-control intersection traffic signal scheme configuration system of claim 1, wherein: the basic information management module comprises an intersection canalization configuration unit and a detection device configuration unit,
intersection canalization configuration unit: respectively configuring channelized information of two intersections, connection directions of the two intersections and connection road section distances, wherein the channelized information comprises intersection shapes, intersection to-be-turned areas, safety islands, pedestrian crossings, dividing strips, the number of imported lanes, lane widths and dividing strip bandwidths;
a detection device configuration unit: and configuring and binding the detection equipment type and position of the intersection, wherein the binding equipment information in each direction of the intersection comprises the equipment type, the equipment IP, the equipment name, the number of detected lanes and the detection distance.
3. The intersection feature-based one-drag-two-control intersection traffic signal scheme configuration system of claim 1, wherein: the lamp group management module comprises a lamp group configuration unit and a lamp group conflict unit,
a lamp group configuration unit: setting lamp groups in the direction of each entrance lane of two intersections based on intersection channelizing information and annunciator wiring information, wherein the lamp groups specifically comprise directions, lamp group types, release directions, annunciator channels and terminals, and meanwhile, marking out and connecting line lamp groups;
a lamp group conflict unit: and establishing a lamp group conflict table based on the signal lamp groups of the two intersections, presenting the signal lamp groups with direct-running conflict, steering conflict and direct-running and steering conflict in the lamp group conflict table, and marking the parallel lamp groups in the lamp group conflict table.
4. The intersection feature-based one-drag-two-control intersection traffic signal scheme configuration system of claim 1, wherein: in the phase sequence configuration module, the rationality of the phase sequence is judged according to a phase sequence scheme configured by a user, and the phase sequence rationality configuration is realized.
5. The intersection feature-based one-drag-two-control intersection traffic signal scheme configuration system of claim 4, wherein: in the phase sequence configuration module, the rationality configuration of the phase sequence is realized, specifically,
s1, screening the phase of the intersection based on the basic phase information in the phase sequence configuration module;
s2, if the lamp group involved in the phase position is connected in parallel with the lamp group of another intersection, the corresponding phase position of the other intersection must be the lamp group phase position which is connected in parallel with the lamp group involved in the intersection phase position, and go to the step S4, otherwise go to the next step S3 directly;
s3, comparing the merging conflict table in the phase sequence configuration module, if the merging traffic flow of the connecting road section exists in the phase, selecting the phase of the evacuation traffic flow at the phase corresponding to another intersection and the phase of the next intersection, otherwise, randomly selecting the phase;
and S4, determining the phase scheme of the next stage, and circulating until the periodic phase sequence is completed and each direction for setting the right of way passes.
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