Signal timing and vehicle speed dynamic coordination control optimization method based on vehicle-road cooperation

A technology of signal timing and vehicle-road coordination, which is applied to traffic control systems, traffic control systems, instruments, etc. of road vehicles, can solve problems such as difficulty in adapting to dynamic optimization and matching of vehicle speeds, and achieve improved traffic capacity, guaranteed traffic efficiency, and reduced The effect of the number of stops

Active Publication Date: 2021-11-02
广州市交通规划研究院有限公司
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Problems solved by technology

[0005] In order to solve the problem that the traditional traffic signal coordination control scheme is difficult to adapt to the dynamic optimization and matching of signal timing and vehicle speed in the vehicle-road coordination scenario, the present invention proposes a dynamic coordination control optimization method for signal timing and vehicle speed based on vehicle-road coordination. Under the dynamic optimization of timing, adjust the driving behavior of vehicles to ensure the dynamic matching of the green wave coordination scheme to traffic fluctuations

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  • Signal timing and vehicle speed dynamic coordination control optimization method based on vehicle-road cooperation
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  • Signal timing and vehicle speed dynamic coordination control optimization method based on vehicle-road cooperation

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Embodiment 1

[0050] Such as figure 1 The flow chart of the optimization method for signal timing and vehicle speed dynamic coordination control based on vehicle-road coordination is shown. In the method, "signal timing" includes signals such as traffic light signal cycle, green light time, phase release mode, and phase difference. For timing parameters, see figure 1 , the method includes:

[0051] S1. Determine the coordinating arterial road, the coordinating arterial road is provided with several detection road sections and several coordination intersections, one detection road section corresponds to one coordination intersection, and the detection road section L i The end of and the corresponding coordinated intersection I i Connected; here, i only represents the order of detection road sections or coordination intersections, represents the corresponding relationship, and there are 4 signal coordination intersections in a known east-west coordination arterial road, set as I from west t...

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Abstract

The invention provides a signal timing and vehicle speed dynamic coordination control optimization method based on vehicle infrastructure cooperation, which comprises the following steps: firstly, based on an original green wave coordination scheme of a coordination trunk road, calculating a green light time increment according to a traffic flow information parameter and a driving-in flow of a target vehicle team on an initial detection road section, thereby being beneficial to improving the traffic capacity of a coordination intersection, and reducing the queuing length of the intersection when the driving-in flow of the target motorcade is increased; the green light adjustment time of the coordination intersection is calculated according to the actual driving speed of the target motorcade in combination with the optimal design vehicle speed of the original green wave coordination scheme of the coordination trunk road, so that the maximum green wave bandwidth can be obtained, and the number of parking times of straight vehicles can be reduced to the greatest extent, time is adjusted according to the green light, the optimal design vehicle speed of the next road section to which the target vehicle team is about to drive is calculated, and the vehicle driving behavior is adjusted under the dynamic optimization of the signal timing so as to ensure the traffic efficiency of the road.

Description

technical field [0001] The present invention relates to the technical field of intelligent traffic control, and more specifically, relates to a vehicle-road coordination-based signal timing and vehicle speed dynamic coordination control optimization method. Background technique [0002] Vehicle-road collaboration refers to the use of advanced wireless communication and new-generation Internet technologies to comprehensively implement vehicle-vehicle and vehicle-road dynamic real-time information interaction, and to realize vehicle-road real-time information dynamic interaction on the basis of full-time and spatial dynamic traffic information integration. Advantages Implement the coordinated control between vehicles and roads to achieve the purpose of improving traffic safety and traffic efficiency; green wave refers to that on a designated traffic line, after the speed of the road section is specified, the signal controller is required to control the speed of the road accordi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/052G08G1/065G08G1/081
Inventor 甘勇华熊文华郑淑鉴胡少鹏易斌韦栋张杰华周沛
Owner 广州市交通规划研究院有限公司
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