Data-Driven Perspective on Management of Safety Risk at State Agencies: Case Study in Washington State

Nationally, transportation agencies have embarked on efforts to collect information digitally on highway attributes to help understand factors that contribute to traffic crash occurrences. Instrumented vehicles, database modeling efforts, and enhancements in crash-data collection are salient examples of such efforts. This paper provides insights into the prospective value of roadway information as it pertains to statistical analysis of severity of crashes. It presents a case study analysis from Washington State that involves divided highway crash data. A statistical model is presented that demonstrates an empirical relationship between key roadway variables and distributions of crash severity. The other notable output of this paper involves the contribution of weather information to the distributions of crash severity. While the case study is restricted to divided highways in the northwest part of the United States, the statistical insights from the analysis of severity distributions indicate the prospective value of key data elements in relation to their regular measurement and updates to statewide crash risk management.

• Record URL:
  • https://doi.org/10.3141/2083-01
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=Data-Driven+Perspective+on+Management+of+Safety+Risk+at+State+Agencies%3a+Case+Study+in+Washington+State&author=J.+Milton&author=V.+Shankar&author=M.+Shyu&author=S.+Sittikariya&author=R.+Pendyala&publication_year=2008
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309125956
• Authors:
  • Milton, John C
  • Shankar, Venky N
  • Shyu, Ming-Bang
  • Sittikariya, Sittipan
  • Pendyala, Ram M
• Publication Date: 2008

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 1-8
• Monograph Title: Safety Data, Analysis, and Modeling
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 2083
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Case studies; Crash data; Crash severity; Divided highways; Highway safety; Risk management; Statistical analysis; Weather
• Identifier Terms: Washington State Department of Transportation
• Geographic Terms: Washington (State)
• Subject Areas: Highways; Safety and Human Factors; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 01099065
• Record Type: Publication
• ISBN: 9780309125956
• Files: TRIS, TRB, ATRI
• Created Date: May 21 2008 7:03AM