Dynamic self-adaptive green wave method based on vehicle-road collaboration

Abstract

The invention discloses a dynamic self-adaptive green wave method based on vehicle-road collaboration. After vehicles drive into a signal detection range of an intersection signal control machine, vehicle-mounted terminals transmit vehicle information to the intersection signal control machine in a vehicle advancing direction; a roadside communication device receives the vehicle information and screens the vehicle information; after screening, the roadside communication device calculates an average speed of all vehicles in a certain time period, calculates a phase difference of the vehicles passing through the road section, and transmits the phase difference to an intersection signal control machine located at a next intersection; and the intersection signal control machine at the next intersection adjusts a street lamp time interval of the intersection according to the phase difference. The dynamic self-adaptive green wave method based on vehicle-road collaboration has the advantagesthat: firstly, the direction of large flow is determined according to flow information obtained through vehicle-road collaboration, and therefore a green wave route is switched to; secondly, the average vehicle speed is calculated according to the vehicle speeds obtained through vehicle-road collaboration, and therefore the green wave phase difference is configured; and thirdly, all-weather coverage of dynamic self-adaptive green waves in a vehicle-road collaboration mode is achieved.

Description

technical field [0001] The invention relates to the field of traffic, in particular to a dynamic adaptive green wave method based on vehicle-road coordination. Background technique [0002] In recent years, with the rapid growth of urban population and motor vehicle ownership, urban traffic problems have further aggravated. Intelligent traffic signal control can scientifically allocate traffic rights, improve traffic order, improve traffic capacity and traffic efficiency at road intersections, and reduce traffic delays. and waste of resources, improve the carrying capacity of regional and urban road networks, and effectively alleviate traffic congestion. [0003] Green wave control is a common coordinated control method for multiple intersections. Through green wave control, the traffic flow can continuously obtain green light signals one after another during driving, and pass through all intersections along the way unimpeded, realizing "green light all the way" Passage gre...

AI Technical Summary

Problems solved by technology

[0005] Due to the fixed phase difference of this scheme, in practical application, the green wave effect can only be realized when the actual vehicle speed is close to the set recommended speed. The vehicle speed is high during the time period, and the vehicle speed changes in real time, so that the ordinary green wave control strategy cannot achieve all-weather coverage. Therefore, we propose a dynamic adaptive green wave method based on vehicle-road coordination

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