摘要
基于交通冲突技术理论，对上海市9个路段的无信号灯控制人行横道处的人车冲突过程进行全程录像。通过读取冲突过程中的车速变化过程、车辆运行轨迹变化过程和行人的避险行为，建立了行人一车辆冲突严重程度的辨别指标，对人车冲突过程中行人以及车辆的避险特性进行了定量的总结和分析。研究表明，路段车速与行人过街速度呈线性管理；大多数车辆与行人发生冲突时，在距离冲突点的位置28m以内才开始采取避险行为；在行人到达为120～140人·h^-1或者平均车头间距为85～100m时，行人通常会聚群寻找可穿越车流间隙过街。
Based on traffic conflict technique and the videotaping of 9 uncontrolled pedestrian crosswalk, this paper establishes the severity index of pedestrlan-vehide conflict by identifying the vehice velocity, vehicle track change and pedestrian＇s rlsk-avoidlng behavior. Risk-avoiding behavior characteristics of both the vehicle and pedestrian are summarized and analyzed. The pedestrian cross velocity is linear to the vehicle speed on the road section. Most vehicles make evasive efforts within 28 m in front of the conflict point. And pedestrians tend to cross in group when the pedestrian volume is 120 140 h^-1 or the vehicle interval is 85-100 m.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第4期503-507,共5页
Journal of Tongji University:Natural Science
关键词
行人安全:交通冲突技术
车速
行人过街特征
pedestrian safety
traffic conflict
velocity
pedestrian crossing behavior characteristic
