Analysis of Vulnerable Road User Kinematics Before/During/After Vehicle Collisions Based on Video Records

The vulnerable road users (VRUs) tend to sustain serious injuries in accidents. There are various types of accident scenarios, and VRUs show various behaviors before and after impacts. In this paper, the authors analyzed 400 VRU accident cases (200 pedestrians and 200 two-wheelers) with video information. The VRUs before/during/after collision parameters (e.g., accident scenarios, VRU avoidance motion, kinematics and trajectory during vehicle impact, and ground contact) were examined. The emergency avoidance motions of the VRUs before collision were: jumping, hands up to prevent, and others. 66% of the pedestrians and 53.5% of the two-wheelers showed avoidance motions before collisions. Pedestrians typically have higher rotation angles than riders on two-wheelers during vehicle collisions, and two-wheeler's riders’ kinematics are more complicated especially when caused by the side impact. Pedestrian rotation angles greater than 90 degrees were observed in over 45% pedestrian collisions. The kinematics of the pedestrian and two-wheelers depends on the vehicle front-end shape and impact velocity. In the ground impact, the order of VRU body regions making contact against the ground depends on the landing posture. The analysis of VRUs before/during/after collisions using accident videos would be useful for comprehensive understanding of VRU accidents.

• Record URL:
  http://www.ircobi.org/wordpress/downloads/irc17/pdf-files/26.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/22353151
• Supplemental Notes:
  • Abstract reprinted with permission of the International Council on the Biomechanics of Injury (IRCOBI).
• Corporate Authors:

  International Research Council on Biomechanics of Injury (IRCOBI)

  Winkelriedstrasse 27
  Zurich,   Switzerland  CH-8006
• Authors:
  • Han, Yong
  • Li, Quan
  • He, Wei
  • Wan, Fang
  • Wang, Bingyu
  • Mizuno, Koji
• Conference:
  • 2017 IRCOBI Conference
  • Location: Antwerp , Belgium
  • Date: 2017-9-13 to 2017-9-15
• Publication Date: 2017

Language

• English

Media Info

• Media Type: Web
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 15p
• Monograph Title: 2017 IRCOBI Conference Proceedings
• Serial:
  • IRCOBI Conference Proceedings
  • Publisher: International Research Council on Biomechanics of Injury (IRCOBI)
  • ISSN: 2235-3151
  • Serial URL: http://www.ircobi.org/proceedings.php

Subject/Index Terms

• TRT Terms: Behavior; Biokinematics; Biophysics; Crash injuries; Crash reconstruction; Cyclists; Pedestrians; Side crashes; Video; Vulnerable road users
• Subject Areas: Highways; Pedestrians and Bicyclists; Safety and Human Factors;

Filing Info

• Accession Number: 01648643
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 20 2017 5:05PM