针对Vissim模型仿真结果的差异性研究

Research on difference of result of simulation by Vissim model

使用微观仿真模型Vissim对一个简单信号交叉口进行多次仿真，以交叉口车辆通过率和延误为指标，分析了其差异性产生的原因，最终得到了仿真结果的差异性和仿真次数之间的关系。

It simulates simple signal crossing repetitiously applying for micro-simulation model Vissim, analyzes cause of difference according to passing of vehicles and delay ratio, and obtains relation of difference and frequency.