PAVECHECK : integrating deflection and GPR for network condition surveys.
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2009-01-01
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Alternative Title:Project title: Implementation of an integrated deflection and ground penetrating radar data analysis system;Integrating deflection and GPR data for network condition surveys;Integrating deflection and ground penetrating radar data for network condition surveys;
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Edition:Technical report; Sept. 2007-Aug. 2008.
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Abstract:The PAVECHECK data integration and analysis system was developed to merge Falling Weight
Deflectometer (FWD) and Ground Penetrating Radar (GPR) data together with digital video images of
surface conditions. In this study Global Positioning System (GPS) was added to the system, and both the
existing data collection and data processing programs were modified. One goal of this study was to evaluate
the potential of using the upgraded PAVECHECK system to collect network level pavement condition data
to assist in pavement rehabilitation planning. GPR data were collected on the entire roadway network for
Williamson County in the Austin District. Collecting the entire 400 center lane miles took less than 10 days.
Maps showing the limits of the data collection activities were developed. The upgraded system and the
outputs from Williamson county are described in this report. The collected data and upgraded software has
been delivered to district personnel.
This system has tremendous potential to assist Texas Department of Transportation (TxDOT) engineers
with future forensic and pavement rehabilitation studies. The PAVECHECK framework can also assist in
future pavement layer database efforts and in documenting and evaluating the performance of research test
sections.
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