借道左转交叉口CV与MV混合流建模与仿真  

Modeling and Simulation of Mixed Flow of CV and MV in the Contraflow Left-turn Lane at Signalized Intersections

作　　者：陈群[1] 杜梦笑 CHEN Qun;DU Mengxiao(School of Traffic&Transportation Engineering,Central South University,Changsha 410075,China;Zhengzhou Station of China Railway Zhengzhou Group Co.,Ltd.,Zhengzhou 450000,China)

机构地区：[1]中南大学交通运输工程学院,湖南长沙410075 [2]中国铁路郑州局集团有限公司郑州站,河南郑州450000

出　　处：《运筹与管理》2024年第10期193-200,共8页Operations Research and Management Science

基　　金：湖南省社会科学基金智库专项(19ZWC03)。

摘　　要：借道左转是为了提高左转车流的通行效率,在信号交叉口采用的一种非传统的左转车流组织方式。协同自适应巡航控制系统是一种纵向车速自动控制的驾驶辅助系统,未来很长一段时间道路上将会是传统人工驾驶车辆和安装协同自适应巡航控制系统的车辆混合行驶。基于元胞自动机模型,研究了采用借道左转交通组织方式信号交叉口传统人工驾驶车辆(MV)和安装协同自适应巡航控制系统的车辆(CV)混合交通流的运行情况,考虑车辆行驶至开口区域时前方的车辆数、前方车辆的运动状态、信号灯状态和信号周期等为协同自适应巡航控制系统开发了一个是否借道的决策程序。结果表明,协同自适应巡航控制系统可以使左转车辆的通行效率提高。In order to improve the traffic efficiency of left-turn traffic flow,some Chinese cities,such as Handan,Shenzhen,Jinan and Changsha,have adopted a non-traditional way of organizing left-turn traffic flow at some intersections:contraflow left-turn lane.The basic idea of contraflow left-turn lane is to set a section of the adjacent opposite lane close to the stop line as a left-turning reverse variable lane at the intersection with a left-turning lane and a left-turning phase.Under certain signal and safety conditions,left-turning vehicles can enter the lane in advance and wait for release.As a traffic organization mode that can effectively improve the traffic efficiency of left-turning traffic flow,in the face of increasing traffic pressure,the contraflow left-turn lane will be adopted by more and more intersections.In addition,the Cooperative Adaptive Cruise Control system(CACC)developed to solve a series of traffic problems has been in the experimental stage.At present and for a long time to come,there is and will be a mix of conventional manually driven vehicles(MV)and CACC equipped vehicles(CV)on the road.In this context,in order to provide some theoretical reference for the promotion process of the contraflow left-turn lane,this paper establishes a cellular automata model for the mixed flow of CV and MV under the traffic organization mode,and studies the operation characteristics of the mixed flow in the contraflow left-turn lane scenario.The mature MCD model is adopted for the movement rules of MV.The movement rules of CV are adapted from the MCD model according to their characteristics different from MV(they are always sensitive to external dynamics,can communicate with each other,and adjust the following strategy according to the type of vehicle ahead,etc.).The key point of the model is to solve the problem of whether CV enter the contraflow left-turn lane when driving to the open area.The decision to enter the contraflow left-turn lane depends on whether delays are reduced so that vehicles can pass earlie

关 键 词：协同自适应巡航控制系统 混合流 交叉口 借道左转 元胞自动机 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]