Effectiveness of Various Safety Improvements in Reducing Crashes on Wyoming Roadways

The high societal cost of roadway crashes nationwide makes improving highway safety an important objective of transportation agencies. Recognizing this, Safety Management Systems (SMS) have been required by the Federal Highway Administration (FHWA) to encourage states to pursue and promote safety and accident investigations. In 2006, the Wyoming Department of Transportation (WYDOT) SMS Committee organized an effort to reduce the number of fatal and serious injury crashes on Wyoming roadways. A plan was published in a formal document known as the Wyoming State Highway Safety Plan (WSHSP). When developing the WSHSP, the WYDOT SMS Committee recognized four main emphasis areas: roadway departure crashes, use of safety restraints, impaired driving, and speeding. While each one of the four emphasis areas plays an important role in the overall reduction of fatal and serious injury crashes statewide, this research focuses primarily on roadway departure crashes. This research study summarizes the effectiveness of the WSHSP on crash severity statewide. This is done by analyzing crash severity on geometric conditions statewide, as well as the effectiveness of two types of safety devices installed on selected roadway sections: shoulder rumble strips and cable median barriers.

• Record URL:
  https://www.ugpti.org/resources/reports/details.php?id=762
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/26894
• Supplemental Notes:
  • This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  University of Wyoming, Laramie

  Department of Civil and Architectural Engineering
  1000 East University Avenue
  Laramie, WY  United States  82071

  Mountain-Plains Consortium

  North Dakota State University
  Fargo, ND  United States  58108

  Wyoming Department of Transportation

  5300 Bishop Blvd.
  Cheyenne, WY  United States  82009-3340

  Research and Innovative Technology Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Coulter, Zebulun C
  • Ksaibati, Khaled
  • 0000-0002-9241-1792
• Publication Date: 2013-12

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 98p

Subject/Index Terms

• TRT Terms: Crash data; Crash rates; Crash severity; Highway safety; Median barriers; Ran off road crashes; Rumble strips
• Identifier Terms: Safety Management Systems
• Geographic Terms: Wyoming
• Subject Areas: Highways; Safety and Human Factors; I82: Accidents and Transport Infrastructure; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 01505602
• Record Type: Publication
• Report/Paper Numbers: MPC-13-262
• Files: UTC, NTL, TRIS, RITA, ATRI, USDOT, STATEDOT
• Created Date: Jan 27 2014 11:27AM