Traffic jam coordinated control method and traffic jam coordinated control system

Abstract

The invention discloses a traffic jam coordinated control method and a traffic jam coordinated control system. The traffic jam coordinated control method includes the steps of inputting, namely, dividing passing of a current key intersection into four phases transformed sequentially, and measuring road occupancy rates and vehicle lengths of next road segments of all the phases and traffic flow information of a previous key intersection; computing, namely, computing traffic capacities of the four phases transformed sequentially, wherein the traffic capacity of any phase is equal to a value obtained by multiplying the road occupancy rate of the next road segment of the phase by the vehicle length of the road segment of the phase and then dividing the product by the traffic flow information of the previous key intersection; comparing, namely, comparing the traffic capacities of the four phases transformed sequentially so as to obtain the phase with the maximum traffic capacity; outputting, namely, when the phase with the maximum traffic capacity is displayed as a green light, subjecting the green light to delaying with a first preset time, and when the phase with the maximum traffic capacity is displayed as a red light, switching the red light to the green light and continuing a second preset time. The traffic jam coordinated control method can solve sudden traffic jam.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a coordinated control method and a coordinated control system for traffic jams. Background technique [0002] At present, most of the evacuation of traffic jams is accomplished through the control of intersection signal lights. The solution to traffic jams is generally achieved in the following ways. [0003] The first is to establish a two-level programming model, optimize the signal cycle of signal lights and the green signal ratio through genetic algorithms, reduce the saturation of the road network, and reduce the traffic congestion in key areas to a certain extent. This method is more complicated and requires first Calculation and optimization of signal light cycle and green signal ratio, the second is mainly for the control of traffic congestion, according to the continuous change of the congestion area, the congestion area is divided into congestion area, transit...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a coordinated control method for traffic jams, which overcomes the complex and inability to solve the problems of sudden traffic jams in the prior art, and can realize traffic congestion even without pre-design. Congestion control, the present invention also provides a kind of coordinated control system of traffic congestion realized according to said method, and this system can solve sudden traffic congestion

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