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Optimizing Surface Characteristics Data Collection by Re-Using the Data for Project Level Road Design
Authors:Benoit Petitclerc, John Laurent and Richard Habel(Pavemetrics)
Abstract: This article proposes a way to reuse the 3D road surface condition data to create road surface model and avoid expensive manual road surface surveys that require road closures. This new approach provides a way to tag collected high resolution high accuracy transverse road profile data acquired by a LCMS system (Laser Crack Measuring System Pavemetrics) with a highly accurate GNSS-INS system (Applanix POS-LV Trimble) to measure both road surface condition and to generate a survey grade accuracy terrain map of any road surface. The information provided by the 3D LCMS system, DMI, Applanix POS-LV, GPS with local RTK corrections and post processing (POSPac-Trimble) software are used to generate the road surface models with repeatable measurements and accuracy compared to surveyed control points. This process results in significant productivity improvements, optimization of the quantity of material that needs to be carried in and out, lower survey costs, decreased traffic interruptions and improved safety of surveyors while improving the quality and resolution of the road surface models.
Within one unit, TriLat combines the power of two probes containing three angle beam sets to identify and quantify cracking at early stages. The result is inspection speeds up to ten times faster than traditional AUT systems, depending on probe size.
3D Technology for Managing Pavements Authors: Richard Wix and Roland Leschinski (ARRB Group) Abstract: Advances in instrumentation have led to the development of new technologies that provide a number of options for collecting pavement condition data. Manual methods have been successfully replicated, automated and then further improved. For instance, 3D laser sensors were first introduced as a means of measuring the transverse profile of the pavement in much greater detail than a straight edge or even a multi-point laser profiler. However, with further advancements this technology is now being used to identify cracks and other defects in the pavement surface. This paper looks at how 3D technology can be used to measure pavement cracking as well as other pavement condition parameters that are of interest to state and local government agencies.
The Roadmap for Pavemetrics’ Success Authors: Jimmy James, Bryan Hagan and Joseph Bragalone (Pavemetrics) Abstract: 1. Manufacturing: Since 1994, Pavemetrics has been manufacturing the highest quality pavement defect measuring device in the world. We have experienced tremendous growth due to our success in the design, manufacture and installation of the Laser Crack Measuring System.