Models to evaluate the severity of pedestrian-vehicle conflicts in five cities

Previous studies have shown that traditional traffic conflict indicators that depend on time-proximity are not a viable measure of conflicts severity in all driving cultures. Behavior-based indicators that are dependent on road-users evasive actions were shown to better reflect severity in less-organized traffic environments. The objective of this paper is to examine the use of time proximity-based and evasive action-based indicators on pedestrian conflicts in five major cities; Shanghai, New Delhi, New York, Doha, Vancouver. Time-to-collision is used as the primary time proximity indicator. Pedestrian evasive actions are reflected in the sudden variation of pedestrian gait parameters. Ordered-response models were utilized to relate both indicators to severity taking into account the unobserved heterogeneity in conflicts. Results show that the evasive action-based indicator is most effective in less-organized traffic environments such as Shanghai and New Delhi while the time proximity measure was shown effective in more structured environments such as Vancouver.

• Record URL:
  https://doi.org/10.1080/23249935.2018.1477853
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/23249935
• Supplemental Notes:
  • © 2018 Hong Kong Society for Transportation Studies Limited.
• Authors:
  • Tageldin, Ahmed
  • Sayed, Tarek
• Publication Date: 2019-11

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 354-375
• Serial:
  • Transportmetrica A: Transport Science
  • Volume: 15
  • Issue Number: 2
  • Publisher: Taylor & Francis
  • ISSN: 2324-9935
  • EISSN: 2324-9943
  • Serial URL: http://www.tandfonline.com/loi/ttra21

Subject/Index Terms

• TRT Terms: Cities; Crash severity; Mathematical models; Pedestrian vehicle crashes; Time
• Candidate Terms: Time-to-collision
• Geographic Terms: Doha (Qatar); New Delhi (India); New York (New York); Shanghai (China); Vancouver (Canada)
• Subject Areas: Highways; Pedestrians and Bicyclists; Planning and Forecasting; Safety and Human Factors;

Filing Info

• Accession Number: 01724667
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 4 2019 5:11PM