【摘要】 红庙枢纽立交位于特长隧道出入口处,隧道与立交相互制约。针对特长隧道及其出入口交通枢纽的交通状况,以实地交通调查和城市交通预测数据为基础,运用VISSIM交通仿真软件建立仿真模型,通过改变流量、流速、流向等不同参数,分别对该枢纽立交交通瓶颈点预测、交通枢纽整体通行能力等进行交通仿真实验;分析实验数据,归纳了该枢纽堵塞区域瓶颈点发生规律,得到实际枢纽立交整体通行能力与规范"设计通行能力"的比值关系。更多还原

【Abstract】 Hongmiao pivot interchange is located at the passageway of an Extra-Long Tunnel;tunnel and interchange affect and restrict each other.For the traffic situation of the Extra-Long Tunnel and pivot interchange,the field traffic survey data and urban traffic forecast data are adopted as the research base,and the VISSIM traffic simulation software is used to establish the simulation model for Hongmiao pivot interchange.By changing different parameters such as flow rate,velocity and direction,the traffic simulation experiments are carried out to predict the traffic bottleneck point and the overall capacity of the pivot interchange.Finally,the simulation experiment data is analyzed to identify and summarize the occurrence at the bottleneck points of hub congested area,and the ratio relationship between the actual overall capacity and "design capacity" is obtained.更多还原