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LTPP and Other Test Section Management and Evaluation

Since 1989, in support of the Strategic Highway Research Program, Arizona Department of Transportation (ADOT) has constructed more Special Pavement Study (SPS) Test Sections than any other highway agency in the United States. In 2006, most SPS test sections were covered up with new construction or pavement preservation. Although this completed the end of the 15-20 year life cycle, all data collection was completed prior to construction or rehabilitation. This study completes the analysis of the collected data and publishes it in a series of research reports. They will complete a forensic analysis on all Long Term Pavement Performance (LTPP) data to include profile analysis, falling weight deflectometer, and distress analysis. The forensic analysis will document the performance range of various pavements.