Vissim在城市交叉口信号配时方案优化中的应用——以“粤海门村”交叉口为例

Optimization of Signal Timing for Urban Intersection Based on Vissim——Taking “Yue Hai Men Cun” Intersection for Example

城市交叉口车辆之间干扰频繁,加上信号配时不合理,使得车辆的延误时间过长,交叉口的通行量不高。以粤海门村交叉口为例,在交通流量数据调查的基础上,通过"等效交通量"方法优化信号配时方案,运用Vissim建立微观仿真模型,并对优化前后的配时方案进行仿真评价。仿真结果表明:优化方案使得交叉口人均延误时间下降了16.6%,停车时间下降了19.3%,平均排队下降了10.6%,通行量增加了2.4%。

Because of the frequent interferences among vehicles and signal timing are unreasonable, the average vehicle delay time and traffic capacity of signal control intersection cannot meet demands. Taking ＂Yue Hai Men Cun＂ intersection for example, this paper applied the equivalent traffic improved signal timing program in optimization of signal timing based on a traffic tlow survey. Using Vissim software to establish a traffic simulation, this paper analyzed the intrinsic signal timing and proposed signal timing. The results of the simulation indicated that the delay time of vehicles degreased 16.6%, the time of stop degreased 19.3%, the average he queue length degreased 10.6% and the traffic volume increased 2.4% in proposed signal timing model.