普通公路上占用外侧单车道的控制区长度研究  

Research on the Control Zone Length of Outside Lane for Highway Traffic Incident Occupancy

作　　者：徐鹏 徐珊珊 XU Peng;XU Shanshan(College of Civil Engineering and Communications,Hohai University,Nanjing 210098,China)

机构地区：[1]河海大学土木与交通学院,江苏南京210098

出　　处：《贵州大学学报（自然科学版）》2020年第5期114-119,共6页Journal of Guizhou University:Natural Sciences

基　　金：江苏省自然科学基金资助项目(SBK20151497);江苏省公路科学研究计划项目(20185004802)。

摘　　要：普通公路在发生交通事件后,由于事件占用部分车道,事发地易形成瓶颈,通行能力迅速下降。为了减少事件发生处的车辆排队现象,保证交通安全,避免二次事故。针对普通公路上交通事件占用外侧单车道的情况,探讨需要进行交通组织控制的区域大小。设计了Vissim实验,分析在不采取交通组织的情况下,影响车辆排队长度的因素;运用交通流理论,根据不同行车速度和大型车占比,计算控制区的长度;最后,使用Vissim微观仿真软件结合无锡市采集的交通数据进行实验。实验结果表明,使用车辆从进入控制区到完成一次换道行为所需要的总长度,作为控制区的长度能有效减少车辆排队长度。After the occurrence of traffic accident on the ordinary highway,because the accident occupied part of the lane,it was easy to form a bottleneck in the accident site,and the traffic capacity declined rapidly.In order to reduce the queuing phenomenon at the occurrence of accidents,ensure traffic safety and avoid secondary accidents,aiming at the situation that traffic incidents occupy the outer single lane on the ordinary highway,the size of the area that needs traffic organization and control is discussed.Firstly,the Vissim experiment is designed to analyze the factors affecting the queue length of vehicles without traffic organization;secondly,the length of the control area is calculated according to different speed and proportion of large vehicles using traffic flow theory;finally,the Vissim micro-simulation software is used to experiment with traffic data collected in Wuxi City.The experimental results show that using the total length of vehicles from entering the control zone to completing a lane change as the length of control zone can effectively reduce the queue length of vehicles.

关 键 词：交通组织 普通公路 控制区域 交通流理论 换道 

分 类 号：U491.4[交通运输工程—交通运输规划与管理]