出口车道数不足对信控交叉口直行车流通行效率的影响  

Influence of Insufficient Exit Lanes on the Efficiency of Through Traffic at Signalized Intersections

作　　者：潘寿燕 张存保[1,2] 霍礼辉 王子琦 PAN Shouyan;ZHANG Cunbao;HUO Lihui;WANG Ziqi(Intelligent Transportation Systems Research Center,Wuhan University of Technology,Wuhan 430063,China;Engineering Research Center of Transportation Information and Safety,Ministry of Education,Wuhan 430063,China)

机构地区：[1]武汉理工大学智能交通系统研究中心,武汉430063 [2]交通信息与安全教育部工程研究中心,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2024年第5期846-851,共6页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家重点研发计划项目(2020YFB1600500)。

摘　　要：文中以武汉市19个出口车道数不足的信控交叉口实测数据为基础,分析直行车流通行状况及影响因素,建立了基于有序多分类Logistic回归的通行效率分析模型.结果表明:绿灯启亮后消散流率达到顶峰后存在一定的下降趋势且具有波动性;交叉口宽度对直行车流的交通流率有显著影响,若四变三交叉口宽度小于44 m,或三变二交叉口宽度小于45 m,或二变一交叉口宽度小于48 m,其通行效率低于将进口直行车道减少1条的情形;汇入的右转车辆对直行车流通行的影响大于同向的右转车辆的影响.Based on the measured data of 19 signalized intersections with insufficient exit lanes in Wuhan,the traffic conditions and influencing factors of through traffic were analyzed,and a traffic efficiency analysis model based on ordered multi-classification Logistic regression was established.The results show that there is a certain downward trend and fluctuation after the dissipation rate reaches the peak after the green light is turned on.The width of the intersection has a significant impact on the traffic flow rate of the through traffic.If the width of the four-to-three intersection is less than 44m,or the width of the three-to-two intersection is less than 45m,or the width of the two-to-one intersection is less than 48m,the traffic efficiency is lower than that of the case where the entrance through lane is reduced by one lane.The influence of the incoming right-turn vehicles on the straight traffic flow is greater than that of the right-turn vehicles in the same direction.

关 键 词：交通工程 信控交叉口 出口车道数不足 通行效率 有序多分类Logistic回归 

分 类 号：U491.5[交通运输工程—交通运输规划与管理]