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

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...

AI Technical Summary

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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