<p><p><strong>References:<br></strong><em>Crawley et al. (1996)<br>Gaspard and Morvant (2004)</em></p><p><strong>Method Summary</strong></p><p>Pavement profile and roughness can be recorded using Walking Profiler or high-speed profiling equipment before and after injection of polyurethane.</p><p><strong>Accuracy and Precision</strong></p><p>These methods provide accurate recording of measurement for the actual profile for surfaces.</p><p><strong>Adequacy of Coverage</strong></p><p>Adequacy of coverage is dependent on the number of tests performed.</p><p><strong> </strong><strong>Implementation Requirements </strong></p><p>The Walking Profiler is an easy-to-use device. The on-board computer handles all calculations and display results.</p><p><strong>General Comments</strong></p><p>Using the high-speed profiler, a profile plot can be generated showing defect locations and must-grind lines, which represents where the roughness exists. It can evaluate the roughness of a pavement by measuring its surface profile at speeds up to 97 KPH (65 MPH), which eliminates the need for lane closures.</p></p>