交通仿真技术在互通立交设计中的应用  

Application of Traffic Simulation Technology in Interchange Design

作　　者：姚宇[1] 

机构地区：[1]江苏省交通规划设计院股份有限公司,江苏南京210005

出　　处：《现代交通技术》2016年第2期77-80,共4页Modern Transportation Technology

摘　　要：交通仿真是一种采用计算机数字仿真或半实物仿真方式的交通分析技术。利用VISSIM中跟车模型与车道变换模型,分析匝道车道数量与交织区的长度对方案通行能力产生的影响,建立微观仿真模型直观反应设计方案的优缺点。对工程方案进行事先评价,根据评价结果逐步优化工程方案,在一定程度上指导方案设计,降低工程风险。结合苏州中环快速路娄江立交工程实例,为特殊情况下的方案比选论证、领导决策提供参考。Traffic simulation is a traffic analysis techniques using computer digital simulation or HILS （hardware-in-loop simulation）. Based on the model of car following model and lane changing model in VISSIM, the influence of the number and the length of the mixed zone on the capacity is analyzed, also the advantages and disadvantages of the scheme are reflected directly by micro simulation model. According to the evaluation results, the project plan is optimized in advance to a certain extent, so the risk of the project is reduced. Combining with the example of Loujiang overpass project of Central Expressway in Suzhou, it provides a reference value for the selection and demonstration of the special cases. According to the survey results, the overall scheme of the interchange and design details of the treatment get a good evaluation.

关 键 词：互通立交设计 交通仿真 微观仿真模型 

分 类 号：U491.23[交通运输工程—交通运输规划与管理]