行人车辆冲突参数分析与安全评价  

Pedestrian-vehicle conflict parameter analysis and safety evaluation

作　　者：张盈盈[1] 刘帅[1] 邱志军[2] 姚丹亚[1] 彭黎辉[1] 

机构地区：[1]清华大学自动化系,北京100084 [2]阿尔伯塔大学土木与环境系

出　　处：《哈尔滨工业大学学报》2012年第12期123-128,共6页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目(60721003;60834001);国家高技术研究发展计划项目(2011AA110401;2012AA112305)

摘　　要：为了评价混合交通环境中的行人和车辆冲突的安全性,对比分析了目前常用的行人车辆冲突参数,提出了个体行人和车辆之间冲突的安全评价模型,并将模型应用于不同的混合交通场景,验证模型的鲁棒性和适用性.结果表明,冲突时间差(Time difference to collision,TDTC)和车辆速度对行人车辆冲突的安全性影响最大.TDTC越接近于零,行人越危险;车辆速度越快,行人越危险.以此建立的行人车辆冲突评价模型可正确评估86.2%的行人车辆冲突安全,对于危险冲突的漏检率为2.1%.To evaluate the pedestrian-vehicle conflict safety in mixed traffic condition,this paper analyzes and compares the commonly used parameters on traffic conflict and presents a model to classify independent pedestrian-vehicle conflict safety.The model is validated by using video data from two different traffic scenes.The result shows that the pedestrian-vehicle conflict safety is highly sensitive to the Time Difference to Collision（TDTC） parameter and the vehicle speed.The closer to zero a TDTC value is and the faster a vehicle is,the more dangerous a pedestrian-vehicle conflict may be.Comparing with independent observation,the model can correctly classify about 86.2% conflicts;only 2.1% conflicts are classified as safer by the model.

关 键 词：行人车辆冲突 冲突时间差(TDTC) 车辆速度 行人安全 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]