一、引言目前,在城市交通方面,随着机动车辆的增加,运输量的激增,车辆往来十分频繁。但因交通管理手段落后,路口车辆积压,堵塞交通的现象时常发生。在市区公路的十字路口,当第一辆车在停车线后等待绿灯吋,后续车辆陆续到达,接踵尾随排在后面。这样,在一个灯光变换期间,停车待通过路口的车辆会排得 I. INTRODUCTION At present, in urban transport, with the increase of motor vehicles and the surge of traffic volume, the traffic between vehicles is very frequent. However, due to the backwardness of traffic management means, the backlog of vehicle backlogs and traffic jam often occur. At the crossroads of urban roads, when the first car waits for the green light after the stop line, follow-up vehicles arrive one after another, followed by the trailing ones. In this way, during a light change, the cars waiting to pass the intersection will be arranged