微观交通仿真模型在交通系统管理、控制和优化中得到广泛应用，然而大多数仿真模型参数均是针对外国的交通情况确定的，并不一定适合中国国情。文章提出了微观仿真模型参数校正流程，以上海市北京东路VISSIM仿真为实例，根据实际采集的数据，运用拉丁方格法进行实验设计，对VISSIM的仿真参数进行了校正，指出了微观仿真模型参数校正有待改进的方面。

如何在道路网络上科学、合理地组织交通流是缓解城市交通拥阻的重要手段，针对上海市目前的交通供需矛盾，并适应地铁、中环快速路等大型交通基础设施的规划与建设，提出了中心区主骨架路网的综合交通流组织规划策略。

The Transportation Planning Model Aid Design System (TPMADS)is designed sand programmed: based on Client/Server model, the traditional transportation planning software is re-programmed and the interface between planning software and traffic database is designed, the dynamic traffic data and static planning model was integrated. Complicated models and arithmetic of traffic planning software are included in the server and the non-professional modelers can carry out the quick operations through inputting key parameters in the client and the model compute results can be expressed in special template chart and table in the client’s GIS platform. The modeler can calibrate the planning model parameters using the dynamic data and improve the model precision. At last, using VISUM software, a practical example is given which has been realized in the project of Shenzhen Urban Traffic Simulation System (SUTSS) and field results indicate that the TPMADS can improve the transportation planning modeling process effectively and efficiently.

针对交通网络分布式仿真的时钟同步问题，提出了一种基于时间窗的保守性同步策略。分析对象(逻辑进程)间的关联事件，提出关联事件在进程间传递信息的延迟dij的估计方法，确定每个仿真对象的时间窗。以9个节点的示例网络为对象，实现了保守时间窗同步算法在交通网络模拟中的应用。实践表明，与其他同步算法相比这种策略具有建模容易、模拟效率高的特点。从而为满足智能运输系统中网络模拟大规模、高效率和实时动态的要求奠定了基础。

A major social problem in developing countries is the traffic congested. Weaving sections are typical type to carry out merge and diverge in urban expressways; meanwhile it is usually a traffic congested bottleneck and incident spot and is characterized for intense lane-changing and complicated driver behavior. Four weaving sections are simulated in CORSIM platform using field data come from Traffic Information Collecting System in Shanghai China. Numerous simulation test indicted there are difference in recurring off-peak and peak time traffic flow in weaving sections. Considering china vehicle performance, road status and driver behavior this conclusion is determined: the main parameters affecting simulation precision are desired free-flow speed, warning sign position, gap acceptance, yield value and time to complete lane-change. Good results are obtained after using the calibrated CORSIM model in simulating weaving sections.