CN112712591A - Traffic signal control experiment system and method based on microscopic traffic simulation - Google Patents
Traffic signal control experiment system and method based on microscopic traffic simulation Download PDFInfo
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Abstract
The invention discloses a traffic signal control experiment system based on microscopic traffic simulation, which comprises a regional microscopic traffic simulation model, a traffic electronic sand table service layer, a traffic signal control experiment platform and an experiment organization control platform; the regional microscopic traffic simulation model is a constructed standardized traffic simulation model, the traffic electronic sand table service layer provides data interaction and data management service for a traffic signal control experiment, and the traffic signal control experiment platform is used for carrying out specific operation of the traffic signal control experiment; the experimental organization control platform is used for controlling the traffic signals of the users to control the experimental process and the user permission of the experiment. In addition, a traffic signal control experimental method based on microscopic traffic simulation is provided. The invention provides a technical scheme, provides an experimental teaching mode for developing traffic engineering foundation and core courses based on experimental tool software, and provides a traffic signal control experimental tool for traffic management.
Description
Technical Field
The invention relates to the technical field of traffic signal control of traffic simulation, in particular to a traffic signal control experiment system and method based on microscopic traffic simulation.
Background
Most of the current urban roads are plane roads, and thousands of plane intersections are generated. In cities with dense population and developed economy, high-density motor vehicles are gathered, the road operation pressure is continuously increased, and the problems of traffic jam, traffic accidents, environmental deterioration and the like which puzzle all road traffic travelers are further generated. As the most important means for managing plane crossings, traffic signal control has been rapidly developed in recent years for use in cities. The quality of signal control has become an important factor influencing the operation efficiency of urban road traffic systems. The traffic management level is improved, particularly the backward traffic signal control mode is improved, the traffic capacity of roads is improved by adopting an advanced traffic signal control means, the safe and smooth traffic is ensured, and the traffic signal control method is an effective way which is recognized by current traffic management experts. However, the real traffic situation cannot be really restored in the management of the traffic signal control scheme at present, so that the traffic signal control scheme is 'talking on paper', and the practical significance is lacked.
Meanwhile, traffic signal control is an important branch of traffic management, and has gradually formed a discipline with unique features. At present, a course of traffic management and control is generally set up in the major of the transportation engineering of colleges and universities. However, due to the limitation of experimental conditions, teachers often pay more attention to the teaching of the traffic signal control theory and cannot perform actual operation in the teaching, so that students lack deep understanding of the theory, and the traffic signal control teaching experiment is difficult to perform and poor in effect. In the traditional traffic teaching process, because the unable management and control of actual road, the high condition of emulation experiment technical requirement, be difficult to carry out the experiment of traffic basic knowledge, traditional traffic signal control experimental facilities mainly control traffic signal itself, can not audio-visual show control scheme to the influence of traffic flow, also can not realize the traffic signal control teaching experiment of the many control schemes of concurrent multi-user.
Disclosure of Invention
The invention provides a traffic signal control experiment system and method based on microscopic traffic simulation, and aims to solve the problems of difficult experiment and poor effect of a traffic signal control scheme.
In order to achieve the purpose, the traffic signal control experiment system based on the microscopic traffic simulation comprises a regional microscopic traffic simulation model, a traffic electronic sand table service layer, a traffic signal control experiment platform and an experiment organization control platform, wherein the regional microscopic traffic simulation model is connected with the traffic electronic sand table service layer, the traffic electronic sand table service layer is connected with the traffic signal control experiment platform, and the experiment organization control platform is respectively connected with the traffic electronic sand table service layer and the traffic signal control experiment platform; the regional microscopic traffic simulation model is a constructed standardized traffic simulation model, the traffic electronic sand table service layer provides data interaction and data management service for a traffic signal control experiment, and the traffic signal control experiment platform is used for carrying out specific operation of the traffic signal control experiment; the traffic signal control experiment platform loads the regional microscopic traffic simulation model through the traffic electronic sand table service layer to realize a traffic signal control experiment; the experimental organization control platform is used for controlling the experimental process and the user permission of the traffic signal control experiment of the user so as to realize the multi-user concurrent traffic signal control experiment.
Preferably, the regional micro-traffic simulation model comprises a road facility model, a management and control scheme model, a trip demand model and a vehicle behavior model; the road surface facility model is used for restoring the actual traffic road surface facility; the control scheme model is used for restoring a traffic control scheme of actual traffic; the travel demand model is used for restoring the traffic flow distribution of the actual traffic road; the vehicle behavior model is used for restoring the driving behavior of the vehicle on the actual traffic road.
Preferably, the traffic electronic sand table service layer comprises a structured database module and a microscopic traffic simulation interface module; the structured database module is used for storing topological relation data of the regional microscopic traffic simulation model and simulation operation data generated when the traffic signal control experiment platform operates; the microscopic traffic simulation interface module is connected with the regional microscopic traffic simulation model and is used for controlling the operation of the regional microscopic traffic simulation model, implementing the execution of a traffic signal control scheme and extracting simulation operation data from the operation of the traffic signal control experiment platform.
Preferably, the traffic signal control experiment platform comprises a road network resource display module, a trip demand design module, a lane steering design module, a signal control scheme design module, a control scheme management module, a simulation control module, a traffic data real-time display module and an experiment report generation module.
Preferably, the road network resource display module is used for combining the road network topological relation with a GIS map to realize that the regional micro traffic simulation model is displayed on the GIS map in a visual form; the road network resource display module is also used as a use basis of the travel demand design module, the lane steering design module and the signal control scheme design module.
Preferably, the travel demand design module, the lane steering design module and the signal control scheme design module are used for providing design of a traffic signal control scheme; and the control scheme management module is used for filing and managing the designed control scheme.
Preferably, the simulation control module is used for controlling the operation of the regional micro traffic simulation model through the traffic electronic sand table service layer; the traffic data real-time display module is used for combining the simulation operation data with a GIS map to analyze and display the real-time operation condition of the regional microscopic traffic simulation model; the experiment report generation module is used for extracting simulation operation data and generating an experiment report of a traffic signal control experiment by combining an experiment operation process of a user.
Preferably, the experimental organization control platform comprises an experimental content design module, an experimental process control generation module and a user management module; the experimental content design module is used for designing experimental content and a functional range, limiting experimental steps and forming an experimental template; the experimental process control generation module is used for controlling the experimental processes and steps and is responsible for distributing control objects and rights of users to the regional microscopic traffic simulation model; the user management module is used for formulating and managing the authority, type and role positioning of each user.
Meanwhile, the invention also provides a traffic signal control experiment method based on the microscopic traffic simulation, which is applied to the traffic signal control experiment system based on the microscopic traffic simulation, and the traffic signal control experiment method based on the microscopic traffic simulation comprises the following steps:
the traffic signal control experiment platform acquires road network information of a regional microscopic traffic simulation model through a structured database module of a traffic electronic sand table service layer, and displays the road network information on a GIS map in a visual form;
the experimental organization control platform acquires experimental content parameters through an experimental content design module, and distributes control objects and rights of users to the regional micro traffic simulation model in combination with an experimental process;
a control scheme design module and a control scheme management module of the traffic signal control experiment platform acquire simulation operation parameters of a designed traffic signal control scheme; the control scheme design module comprises a travel demand design module, a lane steering design module and a signal control scheme design module;
and the simulation control module of the traffic signal control experiment platform sends the control scheme to the regional micro traffic simulation model through the micro traffic simulation interface module of the traffic electronic sand table service layer, so that the regional micro traffic simulation model can operate according to the control scheme.
Further, the traffic signal control experiment method based on the microscopic traffic simulation further comprises the following steps:
when the control scheme is operated, the microscopic traffic simulation interface module reads simulation operation data in real time, synchronously uploads the simulation operation data to the traffic signal control experiment platform, and analyzes and displays the simulation operation data by combining a GIS map;
after the operation of the control scheme is finished, the traffic signal control experiment platform acquires historical data stored in the structured database module through the experiment report generation module, and generates an experiment report of the traffic signal control experiment by combining an experiment flow.
Further, the traffic signal control experiment method based on the microscopic traffic simulation further comprises the following steps:
when the control scheme is operated, the traffic signal control experiment platform issues a new control scheme to realize the adjustment and operation of the regional micro traffic simulation model according to the new control scheme or realize the concurrent operation of a plurality of control schemes according to the user authority.
The traffic signal control experiment system and the method based on the microscopic traffic simulation provided by the invention restore the real road facilities, traffic control schemes, traffic flow conditions and driving behavior conditions of vehicles, and a regional microscopic traffic simulation model is constructed, and a traffic signal control experiment based on microscopic traffic simulation on a traffic signal control experiment platform is realized through a traffic electronic sand table service layer, the experimental organization control platform controls the traffic signal control experimental process and authority of a user, provides an experimental teaching mode based on experimental tool software to develop traffic engineering foundation and core courses, enables teachers and students to easily realize the theoretical verification of traffic signal control on a simulation environment, deepens the understanding of the students on a traffic signal control timing scheme, masters the traffic signal control optimization practice capability, and realizes the parallel control experimental operation of a multi-user multi-control scheme; meanwhile, a traffic signal control experimental tool is provided for traffic management, and the control scheme of designing and simulating the traffic signal is more accurate and convenient.
Drawings
Fig. 1 is a schematic structural diagram of a traffic signal control experiment system based on micro traffic simulation according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a traffic signal control experiment method based on micro traffic simulation according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a traffic signal control experiment system based on microscopic traffic simulation, where the traffic signal control experiment system based on microscopic traffic simulation includes a regional microscopic traffic simulation model 10, a traffic electronic sand table service layer 20, a traffic signal control experiment platform 30 and an experiment organization control platform 40, the regional microscopic traffic simulation model 10 is connected with the traffic electronic sand table service layer 20, the traffic electronic sand table service layer 20 is connected with the traffic signal control experiment platform 30, and the experiment organization control platform 40 is connected with the traffic electronic sand table service layer 20 and the traffic signal control experiment platform 30, respectively; the regional microscopic traffic simulation model 10 is a constructed standardized traffic simulation model, the traffic electronic sand table service layer 20 provides data interaction and data management services for a traffic signal control experiment, and the traffic signal control experiment platform 30 is used for carrying out specific operations of the traffic signal control experiment; the traffic signal control experiment platform 30 loads the regional micro traffic simulation model 10 through the traffic electronic sand table service layer 20 to realize a traffic signal control experiment; the experimental organization control platform 40 is used for controlling the experimental process and the user authority of the traffic signal control experiment of the user so as to realize the multi-user concurrent traffic signal control experiment.
Specifically, the regional microscopic traffic simulation model 10 is a standardized traffic simulation model constructed according to the four-in-two principle of refinement, precision, process, standardization, controllability and expandability. Specifically, in an embodiment of the present invention, the area micro traffic simulation model 10 includes a road facility model, a management and control scheme model, a travel demand model, and a vehicle behavior model.
The road surface facility model is used for restoring the actual traffic road surface facility;
the control scheme model is used for restoring a traffic control scheme of actual traffic; specifically, the traffic management scheme includes one or more of a traffic signal control scheme, a traffic road surface canalization scheme, and a traffic lane prohibition scheme;
the travel demand model is used for restoring traffic flow distribution of an actual traffic road, such as early peak traffic flow, flat peak traffic flow and the like;
the vehicle behavior model is used for restoring the driving behaviors of the vehicles on the actual traffic road, such as vehicle following behaviors, lane changing behaviors, queuing behaviors and the like.
The traffic electronic sand table service layer 20 comprises a structured database module and a microscopic traffic simulation interface module, and provides data interaction and data management service for traffic signal control experiments.
Specifically, the structured database module is configured to store topological relation data of the regional micro traffic simulation model 10 and simulation operation data generated when the traffic signal control experiment platform 30 operates; the micro traffic simulation interface module is connected with the regional micro traffic simulation model 10 and is used for controlling the operation of the regional micro traffic simulation model 10, implementing the execution of a traffic signal control scheme, and extracting simulation operation data from the operation of the traffic signal control experiment platform 30.
The traffic signal control experiment platform 30 comprises a road network resource display module, a trip demand design module, a lane steering design module, a signal control scheme design module, a control scheme management module, a simulation control module, a traffic data real-time display module and an experiment report generation module; the trip demand design module, the lane steering design module and the signal control scheme design module are traffic signal control scheme design modules.
The road network resource display module is used for combining the road network topological relation with the GIS map so as to display the regional micro traffic simulation model 10 on the GIS map in a visual mode. The GIS is a Geographic Information System (GIS) that can effectively collect, store, manage, compute, analyze, display, and describe traffic-related Geographic distribution data. The road network resource display module is also used as a use basis of the control scheme design module.
The control scheme design module is used for providing design of a traffic control scheme; specifically, the control scheme design module provides specific control scheme design of traffic signals such as travel demands, lane steering and signal timing control, and outputs the designed control scheme. Specifically, the control scheme design module comprises a travel demand design module, a lane steering design module and a signal control scheme design module.
And the control scheme management module is used for filing and managing the designed control scheme.
The simulation control module is used for controlling the operation of the regional micro traffic simulation model 10 through the traffic electronic sand table service layer 20.
The traffic data real-time display module is used for combining the simulation operation data with the GIS map to analyze and display the real-time operation condition of the regional micro traffic simulation model 10.
The experiment report generation module is used for extracting simulation operation data and generating an experiment report of a traffic signal control experiment by combining an experiment operation process of a user.
The experiment report generation module is used for extracting simulation operation data and generating an experiment report of a traffic signal control experiment by combining an experiment operation process of a user.
The experimental organization control platform 40 is used for controlling the traffic signals of the users to control the experimental processes and the user rights of the experiments, and specifically, the experimental organization control platform 40 includes an experimental content design module, an experimental process control generation module and a user management module.
The experimental content design module is used for designing experimental content and functional range, limiting experimental steps and forming an experimental template.
The experimental process control generation module is used for controlling the experimental processes and steps and is responsible for distributing the control objects and the rights of the users to the regional micro traffic simulation model.
The user management module is used for formulating and managing the authority, type and role positioning of each user.
Meanwhile, the invention also provides a traffic signal control experiment method based on the microscopic traffic simulation, which is applied to the traffic signal control experiment system based on the microscopic traffic simulation.
Referring to fig. 2, the traffic signal control experiment method based on micro traffic simulation includes:
step S10: the traffic signal control experiment platform acquires road network information of a regional microscopic traffic simulation model through a structured database module of a traffic electronic sand table service layer, and displays the road network information on a GIS map in a visual form;
step S20: the experimental organization control platform acquires experimental content parameters through an experimental content design module, and distributes control objects and rights of users to the regional micro traffic simulation model in combination with an experimental process;
step S30: a control scheme design module and a control scheme management module of the traffic signal control experiment platform acquire simulation operation parameters of a designed traffic signal control scheme; the control scheme design module comprises a travel demand design module, a lane steering design module and a signal control scheme design module;
step S40: the simulation control module of the traffic signal control experiment platform sends the control scheme to the regional micro traffic simulation model through the micro traffic simulation interface module of the traffic electronic sand table service layer, so that the regional micro traffic simulation model can operate according to the control scheme;
step S50: when the control scheme is operated, the microscopic traffic simulation interface module reads simulation operation data in real time, synchronously uploads the simulation operation data to the traffic signal control experiment platform, and analyzes and displays the simulation operation data by combining a GIS map;
step S60: after the operation of the control scheme is finished, the traffic signal control experiment platform acquires historical data stored in the structured database module through the experiment report generation module, and generates an experiment report of the traffic signal control experiment by combining an experiment flow.
Meanwhile, when the control scheme is operated, the traffic signal control experiment platform sends a new control scheme to realize the adjustment and operation of the regional micro traffic simulation model according to the new control scheme or the concurrent operation of a plurality of control schemes according to the user authority; specifically, in an embodiment of the present invention, the new control scheme may be a new control scheme designed by the control scheme design module, and may operate in an offline state; or a control scheme downloaded or transmitted over a network by a server or other experimental platform, in the case of a network connection. When the traffic signal control experiment platform operates a plurality of control schemes in the regional microscopic traffic simulation model, each control scheme simulates the continuous operation of traffic conditions and generates simulated operation data during operation, and the concurrent operation of a plurality of user multi-control schemes is performed through the experiment organization control platform according to the user authority and the control schemes, so that the operation efficiency of the traffic signal control experiment is improved, and the traffic signal control experiment platform can be applied to the application of a plurality of students in teaching to simultaneously and respectively perform the traffic signal control experiment.
Compared with the prior art, the traffic signal control experiment system and the method based on the microscopic traffic simulation provided by the invention, by restoring the real road facilities, traffic control schemes, traffic flow conditions and driving behavior conditions of vehicles, and a regional microscopic traffic simulation model is constructed, and a traffic signal control experiment based on microscopic traffic simulation on a traffic signal control experiment platform is realized through a traffic electronic sand table service layer, the experimental organization control platform controls the traffic signal control experimental process and authority of a user, provides an experimental teaching mode based on experimental tool software to develop traffic engineering foundation and core courses, enables teachers and students to easily realize the theoretical verification of traffic signal control on a simulation environment, deepens the understanding of the students on a traffic signal control timing scheme, masters the traffic signal control optimization practice capability, and realizes the parallel control experimental operation of a multi-user multi-control scheme; meanwhile, a traffic signal control experimental tool is provided for traffic management, and the control scheme of designing and simulating the traffic signal is more accurate and convenient.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (11)
1. A traffic signal control experiment system based on microscopic traffic simulation is characterized by comprising an area microscopic traffic simulation model, a traffic electronic sand table service layer, a traffic signal control experiment platform and an experiment organization control platform, wherein the area microscopic traffic simulation model is connected with the traffic electronic sand table service layer, the traffic electronic sand table service layer is connected with the traffic signal control experiment platform, and the experiment organization control platform is respectively connected with the traffic electronic sand table service layer and the traffic signal control experiment platform; the regional microscopic traffic simulation model is a constructed standardized traffic simulation model, the traffic electronic sand table service layer provides data interaction and data management service for a traffic signal control experiment, and the traffic signal control experiment platform is used for carrying out specific operation of the traffic signal control experiment; the traffic signal control experiment platform loads the regional microscopic traffic simulation model through the traffic electronic sand table service layer to realize a traffic signal control experiment; the experimental organization control platform is used for controlling the experimental process and the user permission of the traffic signal control experiment of the user so as to realize the multi-user concurrent traffic signal control experiment.
2. The traffic signal control experiment system based on micro traffic simulation of claim 1, wherein the area micro traffic simulation model comprises a road facility model, a management and control scheme model, a travel demand model and a vehicle behavior model; the road surface facility model is used for restoring the actual traffic road surface facility; the control scheme model is used for restoring a traffic control scheme of actual traffic; the travel demand model is used for restoring the traffic flow distribution of the actual traffic road; the vehicle behavior model is used for restoring the driving behavior of the vehicle on the actual traffic road.
3. The microscopic traffic simulation-based traffic signal control experiment system according to claim 1, wherein the traffic electronic sand table service layer comprises a structured database module and a microscopic traffic simulation interface module; the structured database module is used for storing topological relation data of the regional microscopic traffic simulation model and simulation operation data generated when the traffic signal control experiment platform operates; the microscopic traffic simulation interface module is connected with the regional microscopic traffic simulation model and is used for controlling the operation of the regional microscopic traffic simulation model, implementing the execution of a traffic signal control scheme and extracting simulation operation data from the operation of the traffic signal control experiment platform.
4. The microscopic traffic simulation-based traffic signal control experiment system according to claim 1, wherein the traffic signal control experiment platform comprises a road network resource display module, a travel demand design module, a lane steering design module, a signal control scheme design module, a control scheme management module, a simulation control module, a traffic data real-time display module and an experiment report generation module.
5. The traffic signal control experiment system based on micro traffic simulation as claimed in claim 4, wherein the road network resource display module is used for combining the road network topological relation with the GIS map to realize the display of the regional micro traffic simulation model on the GIS map in a visual form; the road network resource display module is also used as a use basis of the travel demand design module, the lane steering design module and the signal control scheme design module.
6. The microscopic traffic simulation-based traffic signal control experiment system according to claim 4, wherein the travel demand design module, the lane turning design module and the signal control scheme design module are used for providing design of a traffic signal control scheme; and the control scheme management module is used for filing and managing the designed control scheme.
7. The traffic signal control experiment system based on the microscopic traffic simulation as claimed in claim 4, wherein the simulation control module is used for controlling the operation of the regional microscopic traffic simulation model through the traffic electronic sand table service layer; the traffic data real-time display module is used for combining the simulation operation data with a GIS map to analyze and display the real-time operation condition of the regional microscopic traffic simulation model; the experiment report generation module is used for extracting simulation operation data and generating an experiment report of a traffic signal control experiment by combining an experiment operation process of a user.
8. The traffic signal control experiment system based on the microscopic traffic simulation as claimed in claim 1, wherein the experimental organization control platform comprises an experimental content design module, an experimental flow control generation module and a user management module; the experimental content design module is used for designing experimental content and a functional range, limiting experimental steps and forming an experimental template; the experimental process control generation module is used for controlling the experimental processes and steps and is responsible for distributing control objects and rights of users to the regional microscopic traffic simulation model; the user management module is used for formulating and managing the authority, type and role positioning of each user.
9. A traffic signal control experiment method based on micro traffic simulation, which is applied to the traffic signal control experiment system based on micro traffic simulation as claimed in any one of claims 1 to 8, and is characterized in that the traffic signal control experiment method based on micro traffic simulation comprises the following steps:
the traffic signal control experiment platform acquires road network information of a regional microscopic traffic simulation model through a structured database module of a traffic electronic sand table service layer, and displays the road network information on a GIS map in a visual form;
the experimental organization control platform acquires experimental content parameters through an experimental content design module, and distributes control objects and rights of users to the regional micro traffic simulation model in combination with an experimental process;
a control scheme design module and a control scheme management module of the traffic signal control experiment platform acquire simulation operation parameters of a designed traffic signal control scheme; the control scheme design module comprises a travel demand design module, a lane steering design module and a signal control scheme design module;
and the simulation control module of the traffic signal control experiment platform sends the control scheme to the regional micro traffic simulation model through the micro traffic simulation interface module of the traffic electronic sand table service layer, so that the regional micro traffic simulation model can operate according to the control scheme.
10. The traffic signal control experiment method based on the micro traffic simulation of claim 9, wherein the traffic signal control experiment method based on the micro traffic simulation further comprises:
when the control scheme is operated, the microscopic traffic simulation interface module reads simulation operation data in real time, synchronously uploads the simulation operation data to the traffic signal control experiment platform, and analyzes and displays the simulation operation data by combining a GIS map;
after the operation of the control scheme is finished, the traffic signal control experiment platform acquires historical data stored in the structured database module through the experiment report generation module, and generates an experiment report of the traffic signal control experiment by combining an experiment flow.
11. The traffic signal control experiment method based on the micro traffic simulation of claim 9, wherein the traffic signal control experiment method based on the micro traffic simulation further comprises:
when the control scheme is operated, the traffic signal control experiment platform issues a new control scheme to realize the adjustment and operation of the regional micro traffic simulation model according to the new control scheme or realize the concurrent operation of a plurality of control schemes according to the user authority.
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