Coordinated control method and system for traffic sub-area signal cycle

A signal cycle and coordinated control technology, applied in the control of traffic signals and other directions, can solve the problems of lack of effective methods for coordinated control of traffic sub-regions, lack of road network traffic characteristics in public cycle calculation methods, etc., and achieve the effect of good real-time characteristics.

Inactive Publication Date: 2016-10-05
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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  • Abstract
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Problems solved by technology

[0002] Traffic signal is one of the main means to realize the control of road traffic state. The control methods of single intersection and trunk road have become more and more mature, but there is still a lack of effective methods for coordinated control of traffic sub-area in a larger range; the existing public period calculation The method lacks consideration of the traffic characteristics of the overall road network; the basic feature of coordinated control is common cycle, that is, multiple intersections use the same signal cycle length; the public signal cycle of the traffic sub-area and the signal cycle of each intersection are obtained according to the traffic flow monitoring data. method remains unresolved worldwide

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  • Coordinated control method and system for traffic sub-area signal cycle
  • Coordinated control method and system for traffic sub-area signal cycle
  • Coordinated control method and system for traffic sub-area signal cycle

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[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] refer to figure 1 , a public cycle and intersection cycle calculation method oriented to the coordinated control of traffic sub-area, mainly divided into three levels: dynamic traffic network modeling module 103, road network node importance calculation and sorting module 102, public signal cycle of traffic sub-area And intersection signal cycle calculation module 101. The three parts have a level-by-level support relationship, that is, the dynamic road network model provides a platform for road network performance calculation and importance calculation, and the order of importance provides a basis for the selection of public cycles.

[0036] refer to figure 2 , the road network topology data and traffic flow monitoring data 204 provide data support for the dynamic road network modeling 203; on top of the dynamic road networ...

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Abstract

The invention provides a traffic sub-area signal cycle coordinating and controlling method and a traffic sub-area signal cycle coordinating and controlling system. According to the system and the method, road junction nodes in a traffic sub-area are subject to importance ranking to find out the most important node, a signal cycle of the most important node is taken as a common signal cycle, and the signal cycles of all nodes in the sub-area are calculated according to the flow and the current signal cycle, so that the state of a common cycle of all road junctions in the traffic sub-area can be formed, basic coordination and controlling optimization is realized, and a foundation is further provided for the optimized coordinating and controlling of traffic sub-area.

Description

technical field [0001] The invention relates to the field of urban road traffic signal control, in particular to a method and system for controlling the period of a public signal in a traffic sub-area and a period of an intersection signal. Background technique [0002] Traffic signal is one of the main means to realize the control of road traffic state. The control methods of single intersection and trunk road have become more and more mature, but there is still a lack of effective methods for coordinated control of traffic sub-area in a larger range; the existing public period calculation The method lacks consideration of the traffic characteristics of the overall road network; the basic feature of coordinated control is common cycle, that is, multiple intersections use the same signal cycle length; the public signal cycle of the traffic sub-area and the signal cycle of each intersection are obtained according to the traffic flow monitoring data. method remains unresolved ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/07
Inventor 张尊栋张福生齐文姣周慧娟林兴祥杨健
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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