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Abstract
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 the 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 as a means of developing trends and minimizing scatter. A moving average for progressively-ordered sets of five test sections yielded more definite results. The expression of accident occurrence which correlated best with skid and slip resistance was wet-weather accidents per 100 million vehicle miles (161 million vehicle kilometers). Accidents increased greatly as Skid Numbers (70 mph or 31 m/s) decreased from 27. Analysis of Peak Slip Numbers and accident occurrences indicated similar trends.
Report Date
11-1974
Report Number
No. 408
Digital Object Identifier
http://dx.doi.org/10.13023/KTC.RR.1974.408
Repository Citation
Rizenbergs, Rolands L.; Burchett, James L.; Deacon, John A.; and Napier, Cass T., "Accidents on Rural Interstate and Parkway Roads and their Relation to Pavement Friction" (1974). Kentucky Transportation Center Research Report. 882.
https://uknowledge.uky.edu/ktc_researchreports/882
Notes
Accepted for publication by the Transportation Research Board.