Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, 410075, China; Chongqing Key Laboratory of Vehicle Emission and Economizing Energy, Chongqing, 401122, China.
Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, 410075, China.
Accid Anal Prev. 2021 Jun;156:106150. doi: 10.1016/j.aap.2021.106150. Epub 2021 Apr 28.
As the use of powered two-wheeler (PTW) becomes increasingly prevalent, PTW accidents are emerging as a major threat to the people's life and property in China. Understanding the risky behaviors, psychological failures and kinematics in vehicle-to-PTW accidents is an important first step in addressing this issue. Here 69 vehicle-to-PTW accidents captured on video from the Traffic Accident Investigation and Research in China (TAIRC) database are selected and reconstructed. All accidents are categorized into different crash scenarios using a harmonized method. Accident causations are identified from the perspectives of praxeology and psychology. Kinematics characteristics, such as impact speed and relative position, are also analyzed. The results show the crossing accident bundle is the most frequent followed by rear, oncoming and run-up accident bundles, with proportions of 43.48 %, 27.54 %, 11.59 % and 17.39 % respectively. Accident causations of different crash scenarios have great differences whether in accident responsibilities or in psychological failures. For instance, the PTW riders who violate the traffic regulations need to be mainly responsible for most crossing accidents, whereas most rear accidents are blamed on drivers who fail to properly check their mirrors when they turn, turn around or change lanes. From the perspective of psychology, the perception failures encountered by both drivers and riders are a typical causation in crossing accidents, while it is a contributing factor in rear accidents that a failure of prognosis from the rider combined with a failure of perception from the driver. Visual obstruction exists widely in crossing and oncoming accident bundles. The impact speeds of vehicles and PTWs are often less than 40 km/h in all accident bundles. A wider sensing area (field of view = 90°, view detection range = 35 m) should be achieved to more effectively detect the conflict PTWs. These findings about vehicle-PTW accidents provide a stronger support for the development of prevention countermeasures and advanced driver assistance system.
随着两轮机动车（PTW）的使用日益普及，PTW 事故成为中国人民生命和财产的主要威胁。了解车辆与 PTW 事故中的危险行为、心理故障和运动学特征是解决这一问题的重要第一步。在这里，从中国交通事故调查与研究（TAIRC）数据库中选择并重建了 69 个视频记录的车辆与 PTW 事故。所有事故均采用协调方法分为不同的碰撞场景。从行为学和心理学的角度确定事故原因。还分析了运动学特征，如碰撞速度和相对位置。结果表明，交叉事故束是最常见的，其次是追尾、迎面和加速事故束，比例分别为 43.48%、27.54%、11.59%和 17.39%。不同碰撞场景的事故原因在事故责任或心理故障方面存在很大差异。例如，违反交通规则的 PTW 骑手需要对大多数交叉事故负主要责任，而大多数追尾事故则归咎于转弯、掉头或变道时未能正确检查后视镜的驾驶员。从心理学的角度来看，驾驶员和骑手遇到的感知故障是交叉事故的典型原因，而骑手的预测故障加上驾驶员的感知故障则是追尾事故的一个促成因素。在交叉和迎面事故束中广泛存在视觉障碍。车辆和 PTW 的碰撞速度通常在所有事故束中都小于 40km/h。应实现更宽的感应区域（视野=90°，视场检测范围=35m），以更有效地检测冲突的 PTW。这些关于车辆与 PTW 事故的发现为制定预防措施和先进驾驶员辅助系统提供了更有力的支持。
