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A Synergistic Approach to Urban Traffic Guidance and Signal Control

A signal control and traffic guidance technology, applied in the direction of controlling traffic signals, etc., can solve the problems of difficult implementation of collaborative algorithms and increase the value of practical engineering applications.

Active Publication Date: 2016-08-24
SOUTHEAST UNIV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: To provide a collaborative method of urban traffic guidance and signal control, to overcome the defect that the existing traffic guidance system and signal control system collaborative algorithm is complex and difficult to implement, and to increase the application value of actual projects

Method used

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  • A Synergistic Approach to Urban Traffic Guidance and Signal Control

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Embodiment Construction

[0022] combine figure 1 and figure 2 Preferred embodiments of the present invention are described.

[0023] Compared with the traditional coordination of urban traffic guidance and signal control through complex optimization algorithms, the present invention uses PARAMICS to establish a collaborative model of urban traffic guidance and signal control for real-time simulation optimization, which can ensure limited computing time under real-time conditions , to obtain a collaborative strategy that is close to the global optimum.

[0024] Step 1, online data storage, the collected data includes: the number of lanes of the target road network section, link connection information, real-time traffic flow information of each section, real-time traffic flow information of each section and signal control parameters of each intersection. Among them, the real-time traffic flow information of each road section includes the traffic flow at the entrance of each road section, the speed of...

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Abstract

The invention discloses a collaborative method and system for urban traffic guidance and signal control. The method includes the following steps: collecting real-time traffic flow information and real-time signal control information, and establishing a PARAMICS simulation of traffic guidance and signal control collaboration based on the urban road network model, and set the parameters of the simulation model according to the above-mentioned signal control information in the steps; calibrate the traffic generation attraction matrix according to the collected real-time traffic flow information; receive the induction strategy parameters of the PARAMICS simulation model, run the simulation, and output the system operating status indicators; change Induce strategy parameters, conduct multiple simulations, save the system operation status indicators output by each simulation; compare the system operation status indicators obtained from each simulation, select the best induction strategy parameters, and apply them to traffic guidance and signal control systems , to send the optimal inducement strategy to the user. The invention overcomes the defect that the collaborative algorithm of the traffic guidance system and the signal control system is complex and difficult to implement in the past.

Description

technical field [0001] The invention belongs to the field of intelligent traffic coordination systems, in particular to a method and system for urban traffic guidance and signal control coordination. Background technique [0002] In the existing traffic management control system, the urban traffic guidance system and the signal control system are usually two completely independent systems. However, if we analyze from the perspective of the optimization objectives of the two systems, we can find that the urban traffic guidance system is optimal for users, while the signal control system is optimal for system efficiency. This makes the urban traffic operating conditions fluctuate all the time, and under extreme conditions, it may lead to a decrease in traffic operating efficiency. [0003] After nearly forty years of research, researchers at home and abroad have a certain understanding of the coordination of urban traffic guidance systems and signal control systems. However,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/08
Inventor 刘攀俞灏罗旭江郭延永杨博
Owner SOUTHEAST UNIV
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