ACCIDENTS ON RURAL INTERSTATE AND PARKWAY ROADS AND THEIR RELATION TO PAVEMENT FRICTION

Friction measurements were made with a skid trailer at 70 mph (31 m/s) on 770 miles (1240 km) of rural, four-lane, controlled-access routes on Interstate and parkway systems in Kentucky. Each construction project was treated as a test section. Accident experience, friction measurements, and traffic volumes were obtained for each. Various relationships between wet-weather accidents and skid resistance were analyzed. Averaging methods were used to develop trends and minimize scatter. A moving average for progressively ordered sets of five test sections yielded more definite results. The expression of accident occurrence that correlated best with skid and slip resistance was wet- weather accidents per 100 million vehicle miles (161 million vehicle km). Accidents (at 70 mph (31 m/s)) increased greatly as skid numbers decreased from 27. Analysis of peak slip numbers and accident occurrences indicated similar trends.

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• Supplemental Notes:
  • The full report can be obatined from the Kentucky Department of Transportation, Report No. RR-443. Publication of this paper sponsored by Committee on Surface Properties- Vehicle Interaction.
• Authors:
  • Rizenbergs, Rolands L
  • Burchett, James L
  • Napier, Cass T
  • Deacon, John A
• Conference:
  • 54th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia
  • Date: 1975-1-13 to 1975-1-17
• Publication Date: 1976

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 22-36
• Monograph Title: Pavement surface properties and vehicle interaction
• Serial:
  • Transportation Research Record
  • Issue Number: 584
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Crash rates; Four lane highways; Freeways; Moisture content; Parkways; Rural highways; Skid trailers; Skidding; Traffic volume
• Identifier Terms: Interstate Highway System
• Uncontrolled Terms: Skid number; Wet conditions
• Old TRIS Terms: Incidence matrices
• Subject Areas: Highways; Pavements; Safety and Human Factors;

Filing Info

• Accession Number: 00141414
• Record Type: Publication
• ISBN: 0309024986
• Report/Paper Numbers: Conf Paper
• Files: TRIS, TRB
• Created Date: Nov 3 1976 12:00AM