High-tension Cable Median Barrier Safety Effectiveness Evaluation

Details

• Creators:
  Storm, Richard ; Srinivasan, Raghavan ; Lan, Bo ; Klump, Sam ; Herring, Rebecca ; Wemple, Beth ; Saleem, Taha ; Schroeder, Whitney
• Corporate Creators:
  University of North Carolina at Chapel Hill. Highway Safety Research Center ; HDR Engineering ; Lakeside Engineers
• Corporate Contributors:
  Minnesota. Department of Transportation. Office of Research & Innovation
• Subject/TRT Terms:
  • Median barriers
  • Traffic safety
  • Crash modification factors
  • Cross sectional studies
  • Before and after studies
• Publication/ Report Number:
  MN 2022-34
• Resource Type:
  Tech Report
• Geographical Coverage:
  Minnesota ; United States
• Edition:
  Final Report
• Corporate Publisher:
  Minnesota. Department of Transportation. Office of Research & Innovation
• Abstract:
  The objective of this study was to evaluate the change in crash frequency or severity of varying lateral offset distances of high-tension cable median barriers in Minnesota. Crash and traffic data from 2016 to present were conjoined with roadway cross-sectional data and high-tension cable barrier locations to perform cross-sectional analyses for interstate segments equal to or greater than 0.05-miles long. Negative binomial regression models were estimated and used to develop crash modification factors (CMFs) for the following crash types: total crashes, target crashes, and barrier crashes. In addition to evaluating the impact of lateral offset, a naïve before-after evaluation was completed to quantify the impact of installing high-tension cable barrier.
• Format:
  PDF
• Funding:
  (c) 1030652
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/65586/dot_65586_DS1.pdf
• File Type:
  [PDF - 2.73 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:12aaef8de5520c1ac8a335deeb728132acf1698e4065b415c07029353776b1f4