等待阶段使用手机对行人过街风险的影响  

Effect of Cell Phone Use on Pedestrian Crossing Risk During Waiting Stage

作　　者：彭金栓[1] 袁浩 宋臻 范子斌 杨祥浩 张磊 PENG Jin-shuan;YUAN Hao;SONG Zhen;FAN Zi-bin;YANG Xiang-hao;ZHANG Lei(College of Traffic&Transportation,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学,交通运输学院,重庆400074

出　　处：《交通运输系统工程与信息》2023年第6期83-89,99,共8页Journal of Transportation Systems Engineering and Information Technology

基　　金：国家重点研发计划(2018YFB1600501);重庆市高校创新研究群体项目(CXQT21022);重庆市自然科学基金(CSTB2022NSCQ-MSX0549)。

摘　　要：为揭示等待阶段使用手机对行人过街风险的影响,本文选取典型信控人行横道进行数据采集,追踪行人过街过程。利用随机森林算法建立行人违章分类模型,提取过街风险表征参数,基于CRITIC(Criteria Importance Through Intercriteria Correlation)权重法构建行人过街风险评估模型。研究表明:行人过街等待时间、位置选择、绿灯反应时间、启动速度、平均速度及目标速度未达成率对过街违章有重要影响;等待阶段使用手机对位置选择影响较小,但会导致行人反应变慢,平均速度降低,行人启动速度及目标速度未达成率升高;目标速度未达成率、过街位置选择及绿灯反应时间对过街风险影响较大,使用手机群体过街风险相对正常过街行人增大了26.1%。研究结果可为过街设施的优化与完善,行人安全教育手段的丰富与提升等提供重要参考。This paper investigates the effect of cell phone use on pedestrian crossing risk during the waiting stage.We conducted data collection at a typical signal-controlled crosswalk to monitor pedestrian crossing behaviors.Utilizing the random forest algorithm,we developed a model for classifying pedestrian violations and extracted key parameters to represent crossing risk.Subsequently,we constructed a pedestrian crossing risk assessment model using the CRITIC(Criteria Importance Through Intercriteria Correlation)weighting method.The results show that several factors significantly affect crossing violations,including pedestrian crossing waiting time,location choice,green light response time,startup speed,average speed and the rate of failing to achieve the target speed.Cell phone use during the waiting stage has a limited impact on location choice but results in slower pedestrian responses,reduced average speed,higher startup speed,and an increased rate of failing to achieve the target speed.The rate of failing to achieve the target speed,crossing location choice,and green light response time have a substantial impact on crossing risk,and thus cell phone use increases crossing risk by 26.1%compared to pedestrians who do not use cell phones.The research results can provide important insights for the enhancement and optimization of street crossing facilities,as well as the improvement of pedestrian safety education effect.

关 键 词：城市交通 过街风险 CRITIC权重法 等待阶段使用手机 过街行为 

分 类 号：U491[交通运输工程—交通运输规划与管理]