ROADWAY INSPECTION: Different Surfaces, Different Requirements
LiDAR Magazine Vol. 7 No. 1 - Copyright 2017 Spatial Media - Article by Brent Gelhar
Since mobile mapping data collection systems first emerged several decades ago, there have been many advances in the technologies employed. The original visual inspection methods were automated at first with the advent of video camera technology. The most recent advances include the integration of laser scanners and lidar (Light Detection and Ranging), high accuracy surface profilers and even ground penetrating radar to detect sub-surface artifacts and infrastructure.
There are many different commercially available systems to measure and inventory roadways, associated assets. The right tool, or combination of tools, is necessary to capture the appropriate data.
Road surfaces require accuracies which are greater than the requirements for vegetation, sidewalks and other general assets. The most recently introduced mobile mapping system, specifically developed for overall roadway evaluation and management is the SITECO PaveScanner4 (Figure 1), which incorporates multiple laser scanners, video imaging cameras and the Pavemetrics Laser Crack Measurement System (LCMS)5. ...
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