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在左转车流量较多且路口区域较大的交叉口,一般通过设置左待转区提高交叉口的通行能力,但待转区的设置会引起机动车的二次停车,造成通行效率低、油耗增加、污染加重。本文主要研究左转车进入待转区的时间,使首辆机动车自驶入待转区到驶出该区域能够实现连续、无二次停车,减少交叉口延误及其带来的污染排放。通过在VISSIM仿真验证,表明无论在高峰、平峰还是低峰,本文所提出的方法都是可行有效的,为改善交通信号配时提供一种新的思路。
In the intersection where the left-hand traffic flow is relatively large and the intersection area is large, the traffic capacity of the intersection is generally increased by setting the left waiting zone, but the setting of the zone to be transferred will cause the second parking of the motor vehicle, resulting in low traffic efficiency, Increased fuel consumption, increased pollution. This paper mainly studies the time when the left turn car enters the turnaround zone so that the first car can realize continuous and no secondary stop from the turnaround area to the turnaround area to reduce the intersection delay and the pollution discharge caused by it. The results of VISSIM simulation show that the proposed method is feasible and effective in terms of peak, flat or low peak, and provides a new way to improve traffic signal timing.