A collaborative optimization method for continuous intersections based on vehicle-road communication
A technology of intersections and intersections, applied in the field of vehicle-road coordination/arterial coordination control, can solve problems such as insufficient support for continuous intersections, uneven intervals between intersections, and low benefits of intersection signal coordination
Active Publication Date: 2021-02-23
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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[0012] 2 Most of the current research is aimed at the one-way coordination path, the integrated optimization model of phase difference and vehicle speed, the traditional model is not enough to support the situation of continuous intersections, and the coordination benefits of intersection signals are low
[0013] 3 The main difficulty in the coordinated design of continuous intersections is the high density of transverse intersections and the uneven spacing between intersections, which makes it difficult to achieve two-way green waves according to conventional methods
Although the existing optimization algorithms can reduce the total delay of intersections in theory, most of the optimization benefits generated by the algorithms require a lot of preconditions, and only meet the conditions in a small amount of time, which not only has limitations but is also practical. The performance is poor, and the operability is difficult to be guaranteed
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[0069] In the continuous intersection control, the disturbance of the signal timing parameters of the upstream intersection will affect the coordination relationship of the downstream intersection, causing vehicles to stay in some road sections, thereby affecting the overall traffic efficiency of the intersection group, and the combined optimization method is adopted , taking the next intersection that the vehicle is going to as a single target, and establishing intersection timing optimization under vehicle-road coordination. Optimize and adjust the timing parameters of intersections.
[0070] Assuming that vehicles can arrive at the intersection within the current period, reducing the delay of these vehicles can improve the traffic capacity of the intersection, so the calculation should mainly consider reducing the delay caused by these vehicles passing through the intersection. The present invention controls parameters by adjusting the signal (red light duration, green ligh...
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The invention provides a vehicle-road communication-based continuous intersection collaborative optimization method, and is suitable for any adjacent upstream and downstream intersections on a main line coordinated control road section and establishes an intersection signal phase optimization flow based on an optimization model. According to the invention, the delay of vehicles in the main direction on the main line is reduced as much as possible, and the problem of mutual conflict caused by inconsistent phases on the main line is effectively solved by considering that the comprehensive benefit of the delay of the vehicles in the conflict phases of the corresponding intersections is not damaged.
Description
technical field [0001] The invention belongs to the technical field of vehicle-road coordination / arterial line coordination control, and specifically relates to a control method through vehicle-road coordination and considering vehicle delays at upstream and downstream intersections. Background technique [0002] For urban road networks, various attributes of intersections are the main bottlenecks that limit the traffic capacity of the road network, and are also the key nodes that realize the mutual conversion of traffic flow in various road sections. During control, the traffic signal control system assigns the corresponding right of way to the conflicting traffic flows and realizes the separation of conflicting traffic flows, so that the traffic capacity of the intersection can be improved and the delay caused by vehicles passing through the intersection can be reduced. Scholars at home and abroad have carried out a lot of research and applications on traffic signal contro...
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IPC IPC(8): G08G1/081G08G1/095
CPCG08G1/081G08G1/095
Inventor 王庞伟冯月王力张名芳
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY