关键词: 交叉口群, 自适应控制, 相位切换, VisVAP, 仿真评价

Abstract:

An adaptive control strategy based on the improved TACOS model for the supersaturated state of traffic flow dynamic change is proposed to improve the efficiency of intersection group of adaptive control intersection.This method offers real-time optimization phase release plan with the intersection of the critical path through the vehicle maximum and average queue length minimum as the goal and release the green light for real-time control according to the flow direction of the maximum queue length.The Vissim VisVAP module is employed for multiple index evaluation analysis of intersection group of adaptive control strategy,which is compared with the timing control.Results show that the adaptive control method can effectively improve traffic capacity by reducing the average waiting time and delay of motor vehicles.

Key words: intersection group;adaptive control;phase switching;VisVAP;simulation and evaluation