在交叉口交通安全及效率提升中,车辆调头合理设置逐渐作为交通流畅通的措施之一,而目前调头区位置设置尚无标准依据。文中以嘉兴市中环南路-纺工路交叉口为例,利用微观仿真软件Vissim对不同调头区位置进行了仿真,采用交叉口总延误及调头延误作为评价指标,得出调头区位置设置在左转车道车辆平均排队长度之后其延误最小。 At the intersection of traffic safety and efficiency improvement, the reasonable setting of vehicles is gradually adopted as one of the measures of traffic flow smoothly, and there is no standard basis for the current location of vehicles. Taking the intersection of Zhonghuan South Road and Spinning Road in Jiaxing City as an example, the location of different transfer zones is simulated by the microscopic simulation software Vissim. The total delay and turnaround of intersections are used as evaluation indexes. The average delay of lane vehicles is the smallest.