AN ANALYSIS OF GUARDRAIL AND MEDIAN BARRIER ACCIDENTS USING THE LONGITUDINAL BARRIER SPECIAL STUDIES (LBSS) FILE, VOLUME I: FINAL REPORT

In the study, the Longitudinal Barrier Special Studies (LBSS) file was cleaned for use in examining the real-world performance of longitudinal barriers. Given that impact speeds were mostly missing from the LBSS file, impact speeds were reconstructed for several accidents. An examination of the accuracy of reconstructed impact speeds was also performed using input from three experts in barrier accident reconstruction. Descriptive and statistical analyses were performed to compare one barrier type vs. another in terms of driver injury. Where appropriate, logistical models were developed that utilized impact speed, impact angle, and vehicle curb weight as covariates. Another comparison involved severity of impacts to ends vs. length of need (LON). Nearly 1,200 cases were available for analysis. Two-thirds of the cases involved a LON and one-third involved an end impact. Two-thirds of the cases involved guardrail accidents; the remainder were median barrier accidents. Clinical analysis of barrier performance was also undertaken to learn more about length-of-need segment failures and barrier-ends.

  • Supplemental Notes:
    • The other volume in this series is: FHWA-RD-92-099, Volume II: Users Guide.
  • Corporate Authors:

    Scientex Corporation

    1655 North Fort Myer Drive, Suite 400
    Arlington, VA  USA  22209

    Federal Highway Administration

    Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
    McLean, VA  USA  22101
  • Authors:
    • Erinle, O
    • Hunter, W
    • Bronstad, M
    • Council, F
    • Stewart, R
  • Publication Date: 1994-2

Language

  • English

Media Info

  • Pagination: 89 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00675177
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-RD-92-098, FR-1362, 3A5B1132
  • Contract Numbers: DTFH61-89-C-00015
  • Files: TRIS, USDOT
  • Created Date: Mar 2 1995 12:00AM