城市交通路口车辆排队系统仿真及优化

Simulation and Optimization of Vehicle Queuing System in Urban Traffic Intersection

针对城市路口车辆排队系统数据不稳定、时效性差的缺点,提出了利用Flexsim仿真技术模拟路口车辆排队系统的方法.论文首先通过分析现场数据,得出车辆排队系统排队规则、车辆排队系统服务时间;然后,利用Expert Fit拟合分布软件拟合排队系统车辆到达时间间隔函数,并利用排队系统函数进行模型仿真;最后,根据模型仿真结果分析,提出优化方案.结果证明,Flexsim仿真技术能有效地模拟路口交通的堵塞情况,对改善路口交通状况有较好效果.

In view of the instability and poor time effectiveness of data in the city intersection vehicles queuing system, this paper puts forward a method to simulate intersections vehicles queuing system by using Flexsim. Firstly, the rules and service time of vehicles queuing System are obtained based on the field data. Then, the vehicles arrival interval functions of the queuing system are fitted by the software of ExpertFit and a simulation through using the functions was carried out. Finally, the optimized solution is proposed according to the result of the simulation. In conclusion, this study proves that the Flexsim simulation can solve problems of intersection traffic jams effectively, which presents a applicable prospect of the system.