Self-organizing traffic signal coordination control method
A traffic signal and coordinated control technology, which is applied in the traffic control system of road vehicles, traffic control systems, instruments, etc., can solve problems such as slow response to traffic problems, fixed sub-areas, and difficulty in switching schemes
Inactive Publication Date: 2015-05-20
SHANGHAI INST OF TECH
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[0008] The present invention aims at the problem that the coordinated control scheme based on the common period is relatively fixed in the traditional mode, the scheme switching is difficult, and the response to the traffic problem is slow. Design and implement a useful and practical dynamic coordination control model
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[0053] The core idea of the present invention is that, starting from the actual application requirements and existing theoretical problems, the definition and connotation of coordination control are expanded, and a dynamic optimization method based on basic coordination units is proposed. Dynamic coordination is an overall guiding ideology. It believes that Intersections cooperate with each other, and the relative relationship with each other is considered when adjusting the plan, which can make more effective use of the right-of-way resources at intersections and the coordination right resources between intersections. This method can increase the flexibility of subdivision and control scheme switching, and improve the efficiency of the traffic control system.
[0054] The so-called basic coordination unit is a sub-area composed of two adjacent signalized intersections and the road sections they contain. In order to ensure the uniqueness of road segment ownership, the presen...
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The invention relates to a self-organizing traffic signal coordination control method. Two adjacent signal control intersections and a section of a highway or railway which is contained by the two adjacent signal control intersections are defined as a basic coordination unit. The two intersections in the basic coordination unit are an upper stream and a lower stream. Network optimization is resolved on interactive optimization which is superposed mutually and is arranged between the basic coordination units. Optimization of whole rode network is finished through intercoupling of the basic coordination units. Prediction models and interactive models between the traffic signal control intersections are built. Personal benefits and the lower steam intersection benefits are considered between the intersections, the problems that subarea are relatively fixed, methods are different to switch, and reaction to traffic questions is slow based on coordination control methods of a common cycle in a traditional mode are solved. Self-organizing coordination of the whole road network is achieved. Compulsive common cycles and phase difference are not needed and reaction is faster.
Description
technical field [0001] The invention relates to a traffic signal control technology, in particular to a self-organized traffic signal coordination control method. Background technique [0002] Traffic signal control is the most effective and economical means to improve the utilization of road resources. With the development of information technology, the information interaction between intersections is gradually fast and stable, which provides a basis for the realization of interactive and distributed coordinated control between intersections. condition. Traditional coordinated control divides the intersection into several sub-areas according to the correlation between the intersections. The intersections in the sub-areas use a common cycle (or double cycle) and a fixed phase difference to provide better green waves for certain directions. It is mostly set along the main road. This control method mainly has the following two disadvantages: [0003] (1) The shapes and size...
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IPC IPC(8): G08G1/081
Inventor 王浩刘云翔李晓丹
Owner SHANGHAI INST OF TECH