RELATION OF ACCIDENTS AND PAVEMENT FRICTION ON RURAL, TWO-LANE ROADS

Friction measurements were made with a skid trailer at 50 km/h (40 mph) on 2350 km (1460 miles) of rural, two-lane roads (U.S. routes) in Kentucky. Maintenance sections or subsections were treated as test sections. Accident experience, friction measurements, traffic volumes, and other available data were obtained for each section. Various expessions of wet-pavement accidents and pavement friction were related and analyzed. Averaging methods were used in developing trends and minimizing scatter. A moving average for progressively ordered sets of 10 test sections and test sections grouped by skid numbers and peak slip numbers yielded more definite results. The expression of accident occurrence that correlated best with skid resistance and peak slip resistance was ratio of wet-to dry-pavement accidents. Wet- to dry-pavement accident ratios increased greatly as skid number decreased from approximately 40 and as peak slip number decreased from approximately 71. /Author/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1977/633/633-004.pdf
• Summary URL:
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Surface Properties-Vehicle Interaction. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Rizenbergs, Rolands L
  • Burchett, James L
  • Warren, Larry A
• Publication Date: 1977

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 21-27
• Monograph Title: Pavement surface properties and performance
• Serial:
  • Transportation Research Record
  • Issue Number: 633
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Crashes; Friction; Highway safety; Pavements; Rural highways; Skid resistance; Slip resistance; Traffic volume; Two lane highways; Wet weather
• Uncontrolled Terms: Wet pavements
• Subject Areas: Highways; Pavements; Safety and Human Factors;

Filing Info

• Accession Number: 00173176
• Record Type: Publication
• ISBN: 0309026598
• Report/Paper Numbers: HS-022 762
• Files: TRIS, TRB
• Created Date: May 3 1978 12:00AM