Roadway structural properties on 463 lane-miles of Interstate 70 between Kansas City and St. Louis were determined using deflection, surface condition, and three-dimensional ground penetrating radar (3DGPR) data collected with the ARRB iPAVE Traffic Speed Deflectometer (TSD). Data was collected in the right wheel path of the travel lane in both the eastbound and westbound directions. The TSD data are collected at the posted speed limited (typically, no more than 60 mph) and results are averaged and reported at 0.01-mile intervals. The 3DGPR data was analyzed to determine the thickness of the pavement layers at each reported TSD test point. The data was analyzed to determine pavement structural properties, to evaluate the load transfer of the underlying transverse joints and cracks, and to identify areas of potential asphalt stripping.Report number: cmr 24-006
Published: June 2024
Project number: TR202419
Performing organization: Infrasense and NCE
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