摘要
信号交叉口是城市道路网络中的关键节点,其运行服务水平直接影响城市路网的运行。本文以北京市光华路与东大桥路交叉口为实例,通过调查该交叉口早晚高峰的交通量和信号配时等数据,分析该交叉口存在东进口流量较大且车道数较少,北进口左转排队长度过长等问题,提出东进口拓宽一条车道,北进口方向绿灯时长增加等优化方案。为验证优化方案有效性,采用WSSIM软件进行建模仿真,采用交通量、排队长度、停车次数和车辆延误等指标进行评价分析。结果表明:优化方案后,交叉口的运行状况得到了大幅度的改善。
Signalized intersections are key nodes in urban road networks,and their operational service level directly affect the normal operation of urban road networks.Taking the intersection of Guanghua Road-Dongdaqiao Road in Beijing as an example,this paper,through investigating the traffic volume and the signal timing during the morning and evening peak hours,finds that there are problems at the intersection,such as large traffic volume and fewer lanes at the east entrance,the long left turn queue at the north entrance,and so on.To solve these problems,the paper proposes a optimization scheme of widening one lane at the east entrance and increasing the green light time in the direction of the north entrance.In order to verify the effectiveness of the optimization scheme,VISSIM software is used for modeling and simulation,and indicators such as the traffic volume,the queue length,the stop times and the vehicle delay are used for evaluation and analysis.The results show that after the implementation of the optimized scheme,the operation status of the intersection is greatly improved.
出处
《道路交通科学技术》
2023年第2期48-51,共4页
Road Traffic Science & Technology
基金
北京警察学院大学生创新训练项目"复杂交叉口交通组织创新仿真建模"(项目编目:2022市创大学生项目12)。
关键词
信号交叉口
交通组织优化
VISSIM仿真
交叉口延误
signalized intersection
traffic organization optimization
VISSIM simulation
delays at the intersection
