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MnROAD Robotic GPR Pavement Density Measurement Task

Robot performs density distance triggered profiling at 2 ft., 6 ft., 10 ft., and 2 ft. return offsets, from Joint Line. The operator downloads a CAD LandXML Road Alignment file containing the Joint Line, which is located roughly in middle of double yellow lines. The traversal distance was set to +500 ft. from the desired starting station number. Before the field experiment, the operator calibrated the Pavescan distance measurement, by traversing the robot precisely 100 feet, out and back. Error estimate was 0.2 ft.