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Edition:Final Report
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Abstract:This project was conducted to describe and evaluate the South Dakota Road Profiler for Demonstration Project 72, "Evaluation of Equipment for Measuring Pavement Roughness and Rut Depth". The Road Profiler's profile and rut depth performance were evaluated by comparisons to surveys taken with rod and level and the E.W. Face "Dipstick". For each of ten sites, the Road Profiler's measurements at 25, 40 and 55 miles per hour were compared to the manual surveys. Spectral analysis and the International Roughness Index were used to compare profile data, while plots and averages were used to compare rut depth data. The Road Profiler's profile and rut depth measurements correlated well with Dipstick measurements. Minor sensitivity to pavement texture was observed. No operational difficulties were encountered.
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