Traffic signal optimal control method for road intersection vehicle coordinated optimization state

Abstract

The invention relates to a traffic signal optimal control method for road intersection vehicle coordinated optimization. Compared with the prior art, the method solves the defect that monitoring, regulation and control on signal lamps by images can not be suitable for coordinated optimization optimized control. The method comprises the following steps that traffic flow parameters of road intersections are obtained; the queuing lengths are calculated; the intersection coordinated optimization states are judged; the green lamp releasing time of each upstream intersection is calculated. According to the traffic signal optimal control method for the road intersection vehicle coordinated optimization, vehicle detectors installed on the inlet-outlet ports of the road intersections are used for detecting the parameters of the queuing lengths and coordinating to optimize events in real time, and through regulation of the green lamp releasing time controlled by traffic signals, and the problems of uniform queuing lengths of the intersections in the region and the coordinated optimization of the intersections are achieved.

Description

technical field [0001] The invention relates to a traffic signal optimization control method, in particular to a traffic signal optimization control method for vehicle coordination optimization state at road intersections. Background technique [0002] Due to the imperfect planning and design of roads in many cities in our country, short-distance intersections appear between many roads in urban areas, that is, the distance between two intersections is very short. Due to the small waiting distance of vehicles, short-distance intersections often have the phenomenon of coordinated optimization. Coordinated optimization refers to the phenomenon that the queue of vehicles at the entrance of the downstream intersection exceeds that of the upstream intersection. At present, coordination and optimization can only be solved through ordinary manual traffic signal control or manual command, and intelligent detection, coordination and optimization and intelligent traffic signal control ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a traffic signal optimization control method for the coordination and optimization state of vehicles at road intersections, and solve the defect that the image monitoring and control signal lights in the prior art cannot be applied to the coordination and optimization optimization control

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