A wheel-mounted distance measuring instrument triggers sensors and cameras to capture at intervals of 4, 5, and 10 meters, depending upon the data item.

Data collected includes driver's eye view high definition images, down-facing high resolution pavement images, rut-depth measurements, roughness values, GPS, horizontal and vertical curvature, cross slope, grade, and laser bridge underclearance measurements.

       Photolog "Wisecrax" Pavement Imaging and Analysis