论文部分内容阅读
基于CORSIM仿真方法评价美国佛罗里达州萨拉索塔市I-75州际高速公路及其备用线路上交通事件管理和信号配时变更对交通运行状况的影响.在萨拉索塔市的备用线路上建立全市范围的信号配时方案,当I-75高速公路上发生交通事件时,引导和指示车辆从适当的地点离开并返回高速公路.利用SYNCHRO信号配时软件建立6种交通事件情况下的信号配时方案.根据萨拉索塔市SYNCHRO数据,产生CORSIM数据集以评价路径变更方案的效果.通过CORSIM分析结果显示,从交通运行状况上看,萨拉索塔市的路径变更方案十分有效,使路网整体延误平均降低21%.另外,对其中一种交通事件情况下,转移的交通流量大小对交通运行状况的影响进行敏感性分析.结果表明,转移的交通量大小对于整个路网延误有显著影响.在本文的实例分析中,转移10%的交通量对整个路网的延误最小.
Evaluate the impact of traffic incident management and signal timing changes on traffic conditions on the I-75 Interstate Freeway in Sarasota, Fla., And its backup lines based on the CORSIM simulation method. Establish a citywide signal timing program to direct and direct vehicles to leave and return to the motorway when traffic incidents occur on the I-75 motorway Signals from six traffic events using the SYNCHRO signal timing software Time Scenario Based on the SYNCHRO data of Sarasota City, a CORSIM dataset was generated to evaluate the effect of the route change plan.The results of CORSIM analysis show that the route change plan of Sarasota City is very effective in traffic operation, The overall delay of the road network is reduced by 21% on average.In addition, sensitivity analysis is made on the impact of the traffic volume on the traffic condition in the case of one of the traffic accidents.The results show that the traffic volume transferred for the entire road network delay Have a significant impact.In the case analysis of this article, the transfer of 10% of the traffic on the entire road network minimum delay.