Realistic Pavement Serviceability Equations Using the 690D Surface Dynamics Profilometer

摘要

For the main rating sessions, the rated sections were profiled using the new Model 690D Surface Dynamics Profilometer (SDP). From the profile data, a family of profile summary statistics called Root-Mean-Square Vertical Accelerations (RMSVAs) were computed. A calibrated Maysmeter and Walker accelerometer device (SIometer) was also operated on these sections. Rigorous statistical techniques were used to analyze the data. Correlation analysis of the Maysmeter and SIometer measurements with the panel ratings showed that the calibrated Maysmeter predicts panel ratings better than the SIometer. The best prediction of the panel ratings, however, is achieved by the 690D profilometer.