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Frictional Performance Of Pavements And Estimates Of Accident Probability [Sept. 1980], James L. Burchett, Rolands L. Rizenbergs
Frictional Performance Of Pavements And Estimates Of Accident Probability [Sept. 1980], James L. Burchett, Rolands L. Rizenbergs
Kentucky Transportation Center Research Report
Objectives of this study were to evaluate standard and experimental surfaces throughout Kentucky in terms of skid resistance and effects of traffic, and to provide criteria for judging suitability of these surfaces to satisfy requirements for skid resistance and economics. The effects of traffic were quantified by regression analysis and scatter of data. Criteria included an estimate of accident risks, effects of speed on skid resistance, and seasonal variations in skid resistance.
The analysis indicated that pavements on low volume roads (less than 1,000 vehicles per day) maintained adequate skid resistances. Open-graded friction courses, with the possible exception of sections …
Statewide Survey Of Skid Resistances Of Pavements (1979), Rolands L. Rizenbergs, James L. Burchett
Statewide Survey Of Skid Resistances Of Pavements (1979), Rolands L. Rizenbergs, James L. Burchett
Kentucky Transportation Center Research Report
Statewide survey of skid resistances continued in 1979 with the testing of 3,060 miles (4,930 km) of roads, including interstate and toll roads. During the two-year (1978 and 1979) cycle of testing, over 7,000 miles (11,270 km) of roads have been tested. Altogether, 560 miles (902 km) of roads had an average skid number of 28 or less. These pavements, in particular, should be considered for deslicking.
In 1978 and 1979, 28 percent of the state-maintained roads were surveyed. These roads carried 72 percent of all traffic on state-maintained roads.