环岛出口道人车冲突影响因素分析  

Analysis of factors affecting pedestrian-vehicle conflicts on traffic circle exit roads

作　　者：吴立新[1] 谷林航 WU Lixin;GU Linhang(School of Transportation Science and Engineering,Jilin University of Construction,Jilin Changchun 130118 China)

机构地区：[1]吉林建筑大学交通科学与工程学院,吉林长春130118

出　　处：《山东交通科技》2024年第3期1-3,16,共4页

基　　金：吉林省自然科学基金自由探索一般项目,项目名称:基于短时交通流量预测的城市信号控制方法研究,项目编号:YDZJ202301ZYTS291。

摘　　要：为有效降低行人与车辆之间冲突的潜在风险,尽可能地避免交通事故的发生,对行人行为特性影响因素与交通冲突之间的联系进行了研究,选取了长春市人民广场处环形交叉口的3个出口道,以交通冲突数据为基础,进行有关行人因素的人车冲突严重程度分析;收集高峰时段的人车冲突数据,选取合适的交通冲突指标,聚类分析得出不同种类交通冲突的阈值以及不同类型人车冲突的严重程度,引入危险度的概念得出小型出口道危险性比大型出口道危险性大的结论;进一步探究行人特性与人车冲突的相关性,发现行人违章率与冲突之间存在正线性关系,行人在即将发生冲突时注视方向由车辆方向到过街方向会大大减少冲突发生。To effectively reduce the conflict between pedestrians and vehicles and avoid traffic accidents as much as possible,the link between pedestrian behavior and traffic conflicts is studied.The data of pedestrianvehicle conflicts during the peak hours were collected,suitable traffic conflict indicators were selected,cluster analysis was conducted to derive the thresholds of different types of traffic conflicts and the severity of different types of pedestrian-vehicle conflicts,and the concept of hazard was introduced to conclude that small exit lanes are more dangerous than large exit lanes.The correlation between pedestrian characteristics and pedestrian-vehicle conflicts was further explored,and it was found that there was a positive linear relationship between pedestrian violation rate and conflicts,and a negative correlation between crossing queue size and conflicts.Pedestrian gaze direction from vehicle direction to crossing direction when conflict is about to occur will greatly reduce the occurrence of conflict.

关 键 词：交通安全 行人交通冲突特性 相关性 均值聚类 危险度 

分 类 号：U491[交通运输工程—交通运输规划与管理]