Analysis of Uncertainty Associated with Response Time in Work Zone Traffic Accidents

Considering the uncertainty of response time to work zone traffic accidents, the response time is assumed to be a random variable following a lognormal distribution. The lognormal distributed response time is further modeled via a mixed linear regression function of factors, including: road type, day of the week, occurrence of a holiday, light condition, work zone type, crash time, and weather. The Bayesian approach is used to calibrate the lognormal distribution model. A case study was created using work zone traffic accident data from the Fatality Analysis Report System between 2002 and 2009. The results showed that the uncertainty of the response time was primarily influenced by road type, crash time, weather, and light conditions. In order to shorten response times, it is suggested that work zone activities are to be undertaken during non-holidays, during the daytime, and in good weather and light conditions.

• Record URL:
  https://doi.org/10.1061/9780784413623.355
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784413623
• Supplemental Notes:
  • © 2014 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Xue, Shan
  • Weng, Jinxian
• Conference:
  • 14th COTA International Conference of Transportation Professionals
  • Location: Changsha , China
  • Date: 2014-7-4 to 2014-7-7
• Publication Date: 2014-6

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 3710-3722
• Monograph Title: CICTP 2014: Safe, Smart, and Sustainable Multimodal Transportation Systems

Subject/Index Terms

• TRT Terms: Crash data; Daylight; Emergency response time; Traffic crashes; Weather; Work zones
• Identifier Terms: Fatality Analysis Reporting System
• Subject Areas: Highways; Safety and Human Factors; I80: Accident Studies;

Filing Info

• Accession Number: 01531206
• Record Type: Publication
• ISBN: 9780784413623
• Files: TRIS, ASCE
• Created Date: Jul 24 2014 3:21PM