Speed guiding method serving the green wave control of urban trunk roads

Abstract

The invention belongs to the field of traffic control and specifically relates to an efficient energy-saving speed guiding method based on the green wave control of urban trunk intersections. After the light color display situation of downstream intersections and the time needed by the dispersion of queuing vehicles behind stopping lines are synthetically considered, and the speed of traffic flows on urban trunks is guided from two aspects: when the condition that the vehicle can pass the downstream intersection at the current speed is detected, a stable driving speed is recommended to a driver, and if the vehicle is driven at the speed, the vehicle can pass the intersection controlled by downstream signals, without stopping; and when the condition that the vehicle can not pass the downstream intersection at the current speed is detected, an deceleration advice is given, the stopping and waiting time of the vehicle at the downstream intersection can be decreased as much as possible, and therefore, oil consumption is reduced. By using the method, the dispersion of vehicle queues can be avoided, the green light utilization ratio of the downstream intersection is increased, meanwhile, the purpose of umimpeded driving of the traffic flows on the trunk can be really achieved, and emission is decreased; and the speed guiding method has the advantages of simple control operation, good real-time performance and the like, and can efficiently guide the traffic flows on the urban trunks and improve the benefit of the green wave control.

Description

technical field [0001] The invention belongs to the field of traffic control, and in particular relates to a speed guidance method serving the green wave control of urban arterial roads. Background technique [0002] In the urban road network, when single-point signal control is set at each intersection of the main line, vehicles often encounter red lights, stop and drive at times, and drive unsmoothly. In order to reduce the parking time of vehicles at each intersection, especially to make the vehicles on the main line unimpeded, traffic engineers have studied to connect a group of adjacent traffic signals on a main line, and coordinate and control them so that the traffic flow can get a continuous flow. A green light release signal, so there is a coordinated control technology for traffic signals at arterial intersections, referred to as line control, also known as green wave control. The research on the signal control theory of modern urban intersections shows that: the ...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the vehicle cannot pass through multiple continuous intersections on the main line smoothly all the way in the green wave control of the urban traffic arterial line, especially for the problems of poor control effect and aggravated traffic emission pollution caused by the green wave control. A speed guidance method serving the green wave control of urban arterial roads, avoiding the separation of fleets, improving the utilization rate of green lights at downstream intersections, and at the same time enabling the traffic flow on the arterial roads to truly realize the smooth flow of green lights all the way, reducing emissions and improving the benefits of green wave control

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