Road Profiler Performance Evaluation and Accuracy Criteria Analysis

摘要: There is an urgent need for accurate measurement of pavement smoothness. A recent profiler round-up compared the performance 68 profilers on five test sections at Virginia Smart Road. This investigation used a sample data collected during experiment to compare profiles and International Roughness Index (IRI) measured each type equipment with other reference. These comparisons allowed determination accuracy repeatability capabilities existing equipment, evaluation appropriateness various criteria, recommendations usage criteria different applications. The main conclusion this that there are available can produce level (repeatability bias) required construction quality control assurance. However, degrades when IRI rough HMA coarse texture rod-and-level measurement. cross-correlation method appears have some advantages respect conventional elevation tolerance comparing profiles. On sites investigated, good among reference assured acceptable accuracy. As expected, analysis based power spectral density gain showed errors non-uniformly distributed range 0.02–0.08 cycle/m 0.3–1 more significant effect bias.