IMPACT OF DYNAMIC AND SAFETY-CONSCIOUS ROUTE GUIDANCE ON ACCIDENT RISK

Under intelligent transportation systems, dynamic route guidance systems (DRG) provide routing information to motorists based on current traffic conditions on a network. However, not enought attention has been given to the impact of such dynamic routing decisions on network safety in terms of the predicted number of accidents. This paper investigates the variation of network-wide accidents caused by traffic redistribution subject to various levels of DRG market penetration, and also examines the potential of a new safety-enhanced route guidance system. A microsimulation model was developed and integrated with a set of accident prediction models for links and intersections. Accident estimates were plotted against time to produce an accident profile that could describe the change of accident occurrence over a time period. Accident profiles, together with average travel time, were used to explain the relationships between DRG market penetration and the number of network-wide accidents. The integrated simulation model was also applied to enhance DRG by suggesting routes with the fewest estimated accidents and hence making route guidance safety conscious.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Abdulhai, B
  • Look, H
• Publication Date: 2003-7

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 369-376
• Serial:
  • Journal of Transportation Engineering
  • Volume: 129
  • Issue Number: 4
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: Advanced driver information systems; Crash risk forecasting; Dynamic traffic assignment; Highway safety; Intelligent transportation systems; Microsimulation; Route guidance; Traffic crashes; Traffic models; Traffic relationships
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 00960550
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Jul 7 2003 12:00AM