3D laser imaging for ODOT interstate network at true 1-mm resolution.
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3D laser imaging for ODOT interstate network at true 1-mm resolution.

  • 2014-12-01

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      With the development of 3D laser imaging technology, the latest iteration of PaveVision3D Ultra can obtain true 1mm resolution 3D data at full-lane coverage in all three directions at highway speed up to 60MPH. This project provides rapid survey using PaveVision3D Ultra for the ODOT interstate highways and SH-51 from I-35 to Sand Springs with approximately 1,280 center miles of pavement. With sophisticated Automated Distress Analyzer 3D (ADA-3D) software interface, the collected 1mm 3D data provide ODOT solutions for automated evaluation of pavement surface including longitudinal profile for roughness, transverse profile for rutting, predicted hydroplaning speed for safety analysis, and cracking and various surface defects for distresses. The Pruned Exact Linear Time (PELT) method, an optimal partitioning algorithm, is implemented to identify change points and dynamically determine homogeneous segments so as to assist DOT effectively using the available 1mm 3D pavement surface condition data for decision-making. The application of 3D 1mm laser imaging technology for network survey is unprecedented. This innovative technology allows highway agencies to use the 1mm 3D system for design and management purposes, particularly to meet the data needs for pavement management system (PMS), bridge deck evaluation without requiring field visits to individual bridges, Pavement ME Design and Highway Performance Monitoring System (HPMS).
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