VISSIM在城市道路平面交叉口的应用

城市道路平面交叉口是道路系统中重要的组成部分，一旦交叉口发生堵塞，会影响交通的有效运行。因此，如何提高交叉路口的通行能力对城市的交通有重要意义。以南稍门十字交叉口为研究对象，借助VISSIM交通仿真软件，调查其高峰时段的现状交通量、信号配时方案及车道功能的划分，研究交叉口优化配时方案和改善交叉口车道划分方案，并对方案进行评价。结果表明该方案能有效的减少车辆延误，提高平面交叉口的通行能力，证明VISSSIM仿真软件在城市道路平面交叉口的应用达到良好的改善效果，为解决目前城市平面交叉口日趋严重的拥堵现状提供有效的参考。

The Application in the Intersection at Grade of Urban Road of VISSIM

The intersection at grade of urban road is an important part in road system ,once the intersection appears traffic jam ,it can affect the traffic effective operation , hence ,it is very important meaning with urban traffic to how to improvement the traffic capacity of the intersection. Regarding Nanshaomen intersection as studying target in thesis , with the help of VISSIM , investigates the present traffic quantity in peak time ,signal timing scheme and road function dividend, studies the reasonable signal timing scheme and road dividend scheme in intersection and evaluates the scheme. The result indicates the scheme can reduce the vehicle delay and improve the traffic capacity of the intersection effectively, it proves that the application in the intersection at grade of urban road of VISSIM can get to good effect, and provides the effective reference to solve increasingly serious traffic jam in the intersection at grade of urban road.