Optimizing control method for single intersection signal in saturated traffic state

Abstract

The invention discloses an optimizing control method for a single intersection signal in a saturated traffic state, which belongs to the field of traffic detection and traffic control of urban roads. The method of the invention comprises the following steps of: detecting and recognizing intersection upstream and downstream vehicle queue setting areas and intersection central area traffic events by high-definition video and carrying out analysis processing on detected traffic data; and by a way based on the combination of the setting areas and rules, carrying out optimizing control on the traffic of the single intersection in the saturated traffic state in a plurality of aspects of intersection central area event judgment, phase downstream traffic flow queue detection and corresponding control processing, phase upstream traffic flow queue detection and corresponding control processing, and the like so that the intersection traffic in the saturated traffic state is run in order, and the traffic capacity of the intersection is improved. The method of the invention can further prevent traffic jam of the intersection in the saturated traffic state, eliminate the traffic jam as soon as possible and avoid the generation of a deadlock phenomenon of the intersection traffic, thereby remitting the problem of urban traffic jam and improving the running efficiency of urban traffic.

Description

technical field [0001] The invention designs a traffic signal control method at an intersection, in particular relates to a traffic signal control method at a single intersection under a saturated traffic state, and belongs to the field of intelligent traffic control. Background technique [0002] With the sharp increase in the number of motor vehicles in cities, saturated traffic has become a common phenomenon. Especially during peak hours, traffic congestion and congestion become more and more serious. Traffic signal control is an effective way to improve the traffic capacity of urban roads, and optimized traffic signal control can maximize the efficiency of intersection use. At present, the research on the control method of signalized intersection under unsaturated traffic has been very mature, such as Webster, HCM and other classic signal control theories and methods can play a very good effect on the control of signalized intersection under unsaturated traffic. But th...

AI Technical Summary

Problems solved by technology

The failure of the intersection control method under the saturated traffic state not only affects the intersection, but also gradually spreads to the surrounding areas, resulting in traffic paralysis in a certain area

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