United States Department of Transportation
i
Safety Evaluation of Pavement Surface Characteristics with 1mm 3D Laser Imaging
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2019-04-24
[PDF-3.02 MB]
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Edition:Final, Oct 2014 – Dec 2016
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Abstract:This report documents the applications of 1mm 3D laser imaging technology to perform safety evaluation of pavements. Several state-of-the-art data collection devices were used for data collection, including the OSU 3D laser imaging technology (named as PaveVision3D Ultra) for 1mm 3D pavement surface data, the Inertial Measurement Unit (IMU), Grip Tester for continuous surface friction, dynamic friction tester (DFT) for dynamic friction coefficients, AMES high speed profiler for pavement roughness and macro-texture, and the portable LS-40 3D Surface Analyzer for ultra-high resolution pavement texture. The estimation of pavement cross slop, hydroplaning speed, macro texture, and friction performance can be performed via the 3D pavement image at high resolution. This study with field pavement applications has shown that the 1mm 3D Ultra technology is promising in real-time pavement surface characterization and evaluation for both pavement and safety management at network and project level surveys. It is anticipated that more tests and refinements are to be performed to validate the new emerging 3D laser imaging technology as a single-pass and complete lane-coverage platform for multiple safety and pavement evaluation purposes.
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