@article{ref1,
title="Accidents on rural interstate and parkway roads and their relation to pavement friction",
journal="Transportation research record",
year="1976",
author="Rizenbergs, Rolands L. and Burchett, James L. and Napier, Cass T. and Deacon, John A.",
volume="584",
number="",
pages="22-36",
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 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.<p />",
language="en",
issn="0361-1981",
doi="",
url="http://dx.doi.org/"
}