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A method and system for modeling urban traffic system based on colored petri nets

A technology of urban traffic and system modeling, applied in traffic control systems of road vehicles, traffic control systems, traffic flow detection, etc., can solve the problems of unfavorable acquisition of ideal traffic signal control schemes, and achieve clear traffic capacity and convenient evaluation Effect

Active Publication Date: 2018-08-28
TONGJI UNIV
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  • Claims
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Problems solved by technology

[0005] In view of the above-mentioned shortcoming of prior art, the object of the present invention is to provide a kind of urban traffic system modeling method and system based on colored Petri net, for solving the traffic system modeling method in the prior art is unfavorable for obtaining ideal Problems with traffic signal control schemes

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  • A method and system for modeling urban traffic system based on colored petri nets
  • A method and system for modeling urban traffic system based on colored petri nets
  • A method and system for modeling urban traffic system based on colored petri nets

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Embodiment Construction

[0034] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0035] It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual impleme...

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Abstract

The invention provides a city traffic system modeling method and system based on a colored Petri network. The method comprises a step of establishing a Petri network traffic flow model of an intersection road, wherein changes of different colors are employed to represent that vehicles enter into different areas in the model, tokens of different colors are employed to represent vehicles with different driving directions, and a step of establishing an intersection signal control model, wherein phase loss times are added into the traffic signal control of the intersection signal control model, and the phase loss times comprise a green begin loss time and a yellow end loss time. The phase loss times are added into the scheme, thus the established model is more practical, and various signal control scheme strategies can be conveniently evaluated by the established model at the same time.

Description

technical field [0001] The invention relates to the field of traffic control signal analysis, in particular to a colored Petri net-based urban traffic system modeling method and system. Background technique [0002] With the rapid development of social economy and the continuous acceleration of urbanization, the number of automobiles continues to increase, the demand for transportation continues to increase, and traffic problems are becoming more and more serious. Signal control at intersections is one of the important means of urban traffic management and control. In order to obtain an ideal traffic signal control scheme, it is necessary to carry out modeling, model analysis and simulation analysis on urban traffic roads. [0003] As a modeling and analysis tool, Petri net can not only describe the phenomena of concurrency and synchronization in the system, but also add many mathematical methods to analyze it, so it is suitable for establishing urban traffic system models. ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
CPCG08G1/0125
Inventor 蒋昌俊闫春钢陈闳中张亚英喻剑叶晨强伟
Owner TONGJI UNIV
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