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汽车安全与节能学报

汽车安全与节能学报 ›› 2021, Vol. 12 ›› Issue (3): 336-345.DOI: 10.3969/j.issn.1674-8484.2021.03.008

• 汽车安全 • 上一篇    下一篇

基于NAIS事故数据聚类的丁字路口危险场景研究

廖静倩1(), 张道文1,2,*(), 高立1, 廖文俊1,2,3   

  1. 1.西华大学 汽车与交通学院,成都 610039,中国
    2.汽车测控与安全四川省重点实验室,成都610039,中国
    3.四川西华司法鉴定中心,成都 610039,中国
  • 收稿日期:2021-04-09 出版日期:2021-09-30 发布日期:2021-10-09
  • 通讯作者: 张道文
  • 作者简介:* 张道文（1968—）,男（汉族）,四川,教授。E-mail: 0119910025@mail.xhu.edu.cn。
    廖静倩（1996—）,女（汉族）,四川,硕士研究生。E-mail: liaojqxhu@qq.com。
  • 基金资助:
    四川省省重点实验室开放课题项目(QCCK2021-011);成都市科技惠民项目(2015-HM01-00369-SF);西华大学研究生创新基金资助(ycjj2020127)

Research on dangerous scene of T-intersection based on NAIS database accident data clustering

LIAO Jingqian1(), ZHANG Daowen1,2,*(), GAO Li1, LIAO Wenjun1,2,3   

  1. 1. School of Automobile and Transportation, Xihua University, Chengdu 610039, China
    2. Key Laboratory of Vehicle Measurement Control and Safety of Sichuan Province, Chengdu 610039, China
    3. Sichuan Xihua Jiaotong Forensics Center, Chengdu 610039, China
  • Received:2021-04-09 Online:2021-09-30 Published:2021-10-09
  • Contact: ZHANG Daowen

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摘要：

为研究交通环境下的丁字路口危险场景,基于国家车辆事故深度调查体系（NAIS）数据库,利用MATLAB软件进行聚类分析,采用层次聚类法得到4类丁字路口危险事故场景。通过对其中3类转弯时的危险场景进行运动学分析建模,构建速度-距离危险模型,结合运动学参数,得到3类丁字路口转弯危险场景下的危险碰撞域。结果表明:乘用车直行和乘用车左转冲突时,当乘用车在进口1左转,危险碰撞范围为1.67~68.45 m; 当乘用车在进口3左转,危险碰撞范围为-1.20~136.00 m。商用车右转与两轮车直行冲突时的危险碰撞范围为0.78~121.30 m;商用车右转与商用车直行冲突时的危险碰撞范围为-15.75~283.30 m。该研究结果可为辅助驾驶安全系统研发测试提供参考。

关键词: 驾驶安全, 交通事故数据, 危险场景, 聚类分析, 运动学分析, 丁字路口

Abstract:

Based on the National Automobile Accident in-Depth Investigation System (NAIS) database, the T-intersection dangerous scenarios in the traffic environment was investigated. 4 types of T-intersection dangerous accident scenarios were obtained with MATLAB software for cluster analysis and by using the hierarchical clustering method. Through the kinematic analysis and modeling of the 3 types of dangerous scenes when turning, the speed-distance dangerous model was constructed, and the kinematic parameters were combined to obtain the dangerous collision domains under the 3 types of T-junction turning dangerous scenes. The results show that under the conditions of conflict between a passenger vehicle going straight and a passenger vehicle turning left, the dangerous collision range is 1.67~68.45 m when the passenger car turns left at entrance 1; while the dangerous collision range is -1.20~136.00 m when the passenger car turns left at entrance 3; when a commercial vehicle turns right and a two-wheeler goes straight, the dangerous collision range is 0.78~121.30 m; the dangerous collision range is -15.75~283.30 m when a commercial vehicle turns right and a commercial vehicle goes straight. The results of the research can be used as a reference for the development and testing of auxiliary driving safety systems.

Key words: driving safety, traffic accident data, dangerous scene, cluster analysis, kinematics analysis, T-intersection

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