两相位信号交叉口直左机动车冲突特性研究  

Research on Collision Characteristics of Straight-Left Vehicles at Two-Phase Signalized Intersections

作　　者：梁春岩[1] 宋菲 梁颢 于林庆 LIANG Chun-yan;SONG Fei;LIANG Hao;YU Lin-qing(Jilin Jianzhu University,Changchun,Jinlin 130118,China)

机构地区：[1]吉林建筑大学,吉林长春130118

出　　处：《黑龙江交通科技》2023年第5期176-179,共4页Communications Science and Technology Heilongjiang

基　　金：吉林省教育厅科学技术研究规划项目(JJKH20210270KJ),“基于交通冲突大数据的城市信号交叉口安全设计方法研究”,吉林省教育厅。

摘　　要：为更好研究交叉口冲突特性,以两相位信号控制交叉口发生冲突频率较高的直左冲突为研究对象,对长春市典型的两相位交叉口进行数据的采集和定量分析,以冲突率和冲突数为指标表征冲突特性,建立直左冲突中左转车占比与冲突率模型和左转车辆数、对向直行车辆数与冲突数模型。结论表明,左转车和对向直行车对冲突数有明显影响,左转车辆数越多,产生冲突的数量越多。研究结果可为两相位交叉口的渠化与信号配时优化提供参考。In order to better study the conflict characteristics of intersections,straight-left conflicts with high conflict frequency at two-phase signal-controlled intersections were taken as the research object.Data collection and quantitative analysis were conducted on typical two-phase intersections in Changchun,and the conflict rate and number were used as indicators to characterize the conflict characteristics.The model of proportion and conflict rate of left turning vehicles and the model of number of vehicles turning left and number of vehicles going straight in opposite direction and number of conflicts are established.The results show that the number of left-turn vehicles and the number of straight-turn vehicles have a significant impact on the number of conflicts,and the more left-turn vehicles,the more conflicts.The research results can provide reference for channelization and signal timing optimization of two-phase intersections.

关 键 词：两相位信号交叉口 直左冲突 左转车占比 冲突率 冲突数 

分 类 号：U492[交通运输工程—交通运输规划与管理]