过饱和交叉口群自适应控制方法

为解决过饱和交通状态下交叉口群道路拥堵时车辆难以疏散、易造成拥堵堆积的问题,提出了一种以交叉路口为中心的区域自适应交通控制方法.同时关注当前路口和相邻交叉路口的交通车辆排队状态信息,确定最佳放行相位实现相邻路口间的协调控制,与传统控制方案相比,方法能够加快拥堵区域向非拥堵区域的车辆疏散,并抑制外围车辆向拥堵区域聚集,有效缓解了拥堵堆积,缩短了行程时间,在非过饱和情况下,亦有效提高了交通通行效率.

Adaptive control method for supersaturated intersection group

In order to solve the difficulty in evacuating traffic congestion which is easy to cause accumulated congestion under supersaturated traffic status,a regional adaptive control method at the intersection is proposed. Coordinated control between adjacent junctions and determination of the optimal phase release plan is achieved by concerning about the traffic conditions of both current intersection and adjacent intersection. Comparing with traditional control schemes,the evacuation of vehicles from congested area to non-congested area is accelerated and inhibit accumulation of vehicles from perimeter to the congested area which effectively alleviates congestion accumulation and shortens travel time. In non-supersaturated situation,traffic capacity can also be effectively improved.