Signal collaborative optimization control method and system of multiple intersections of urban region

Abstract

The invention discloses a signal collaborative optimization control method and system of multiple intersections of an urban region, and relates to the field of traffic management and control. According to the time when vehicles are away from an upstream intersection and control scheme information of the upstream intersection, time when the vehicles reach the tail end of a queue, changes of the number of the vehicles in queue and queuing waiting time of the vehicles are sequentially estimated, and are taken as a target function, an optimal signal control scheme within the predicated time length is calculated, and finally, the state of a lamp light is updated. Existing intersection facility resource allocation is fully utilized, and the problems that a traditional self-adaption signal control method is only suitable for a single intersection, and the computation complexity is large are solved. The method has the advantages of being wide in application range, easy to achieve, high in reliability and the like.

Description

technical field [0001] The invention relates to a technology in the field of traffic information management, in particular to a method and system for coordinated optimization control of multi-intersection signals in an urban area. Background technique [0002] In recent years, with the significant increase in the number of motor vehicles, a series of serious traffic problems have arisen, and congestion can be seen everywhere. In order to alleviate urban traffic problems, signal control at urban intersections is becoming more and more important. Early urban intersection signals were mainly based on single-point control, and the signals were switched manually or regularly. It was not until the early 1930s that trigger signal control using pressure detectors appeared. In the middle and late 20th century, with the development of computer network technology, interconnected signal control appeared at adjacent intersections with a short distance in the city. Pass through its down...

AI Technical Summary

Problems solved by technology

However, this technology only obtains the average calculation model of delay, and cannot analyze the delay of each vehicle passing through the intersection from a microscopic point of view.

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