城市道路中仿真软件的应用

城市道路中存在大量的交通拥堵问题,利用仿真软件可以得到解决措施实施后的模拟效果,为今后制定合理的交通管理措施提供依据.通过3种仿真软件VISSIM、SYNCHRO、TSIS分别模拟扬州市某一交叉口的车流情况,提出该交叉口相应的整改措施,并通过最大排队长度、服务水平和延误3项指标对比得出VISSIM模拟的精确度最高,其中交叉口的延误理论计算为19 s,VISSIM模拟的延误时间为19.1 s,服务水平为B级,与实际情况吻合,为仿真软件的进一步发展提供了参考依据.

Application of Simulation Softwares on Urban Roads

There are many problems of traffic jams on urban roads . Simulation softwares can simulate traffic flows which change with proper actions and export different indications,which can make a foundation for later traffic management. Using three softwares of VISSIM,SYNCHRO and TSIS to simulate an intersection in Yangzhou city,we have got relative ways to improve this situation. The final result shows that VISSIM is the best of the three to do the simulation and measure the indications：the maximum queue length,the level of service and the delay time. The delay time is 19s in practice and VISSIM shows 19. I s. The level of service in this intersection is B ,which agrees with VISSIM. So the result is a new way for the development of simulation softwares.