Reliability analysis of vehicle speed estimation based on uncertainty of information obtained on accident scene

In numerical analysis of vehicle–pedestrian accidents, the estimation of impact speed is often completed based on some on-scene information such as pedestrian projection distance. In this article, aimed at the uncertainty of accident on-scene information, error calculation formulas of crucial information are derived based on the process of on-scene investigation. Meanwhile, the reliability model of pedestrian projection distance measurement is established using first-order reliability method. With the vehicle–pedestrian accident scene that has been built, the reliability safety factors of projection distance measurement under different impact velocity are calculated. Furthermore, the influence of positioning methods, impact velocity, and datum points on reliability of on-scene information is discussed, and some suggestions are made to improve the reliability of on-scene investigation.

• Record URL:
  https://doi.org/10.1080/13588265.2018.1478926
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/13588265
• Supplemental Notes:
  • © 2019 Informa UK Limited, trading as Taylor & Francis Group. Abstract republished with permission of Taylor & Francis.
• Authors:
  • Zhang, Xiaoyun
  • Zhang, Dongming
  • Yang, Xiaobo
  • Hou, Xinyi
• Publication Date: 2019-7

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References;
• Pagination: pp 472-485
• Serial:
  • International Journal of Crashworthiness
  • Volume: 24
  • Issue Number: 4
  • Publisher: Taylor & Francis
  • ISSN: 1358-8265
  • Serial URL: http://www.tandfonline.com/loi/tcrs20

Subject/Index Terms

• TRT Terms: Crash reconstruction; Numerical analysis; On the scene crash investigation; Operating speed; Pedestrian vehicle crashes; Reliability; Uncertainty; Velocity
• Subject Areas: Highways; Pedestrians and Bicyclists; Planning and Forecasting; Safety and Human Factors;

Filing Info

• Accession Number: 01707001
• Record Type: Publication
• Files: TRIS
• Created Date: May 31 2019 4:36PM