Running Surface Assessment Technology Review

Abstract

This report summarizes potentially applicable technologies for assessing the surface smoothness of roadway surfaces. Specifically, this report characterizes the manual method, commercial profiling solutions, and LIDAR systems for assessing roadway surface conditions. This report considers the assessment of a closed space, dedicated roadway surface for automated people movers as a basis for evaluation of the systems. The manual method is described as a baseline, from which other potential solutions are considered. A series of questions relating to inspection of the selected surface by commercial instruments is enumerated based on the problem domain and discussion with surface inspection experts. Of seven commercial profilers surveyed, the 4 that most closely fit the requirements are described in detail in the report. A brief overview of LIDAR (light detection and ranging) systems is provided with a brief mention of how to apply the systems to surface assessment. A conclusion reiterates that depending on the length of surface to be inspected and the time after the initial pour, that either the commercial profilers or the LIDAR systems may be the most appropriate.