基于VISSIM仿真的交叉口交通组织优化研究

Optimization of Intersection Traffic Organization Based on VISSIM Simulation

信号交叉口作为城市道路的咽喉,提高其通行能力可以有效改善道路整体交通状况。文章选取江门市迎宾路-丰乐路-东华二路交叉口为实例,基于实地调查的高峰时段交通流量及交叉口相关数据,利用VISSIM软件构建交叉口的交通仿真模型,针对仿真运行结果从车道功能划分和信号配时两方面提出交通组织优化设计方案,对优化前后的车辆延误、排队长度仿真结果进行对比分析。结果表明,经优化后车辆延误和排队长度都大幅减少,交叉口的服务水平明显提升,交通状况得到了明显改善,从而验证了优化方案的合理性和有效性。

Signal intersection as the throat of urban roads,improve its capacity can effectively improve the overall traffic condition of the road.This paper selects the intersection of Yingbin Road-Fengle Road-Donghua Road II in Jiangmen City as an example,based on the field survey of peak hour traffic flow and intersection-related data,uses VISSIM software to construct the traffic simulation model of the intersection,and proposes the traffic organization optimization design scheme from the two aspects of the simulation results of the functional division of the lanes and signal timing,and makes comparative analyses of the vehicle delays before and after the optimization,and the length of queueing simulation results.The simulation results of vehicle delay and queue length before and after optimization are compared and analyzed.The results show that the vehicle delay and queuing length are greatly reduced after the optimization,the service level of the intersection is obviously improved,and the traffic condition is significantly improved,thus verifying the reasonableness and effectiveness of the optimization scheme.