United States Department of Transportation
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Improving the Long-Term Condition of Pavements in Massachusetts and Determining Return on Investment: Implementing the AASHTO Mechanistic-Empirical Pavement Design Guide Phase I
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2021-06-01
[PDF-4.77 MB]
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Edition:Final Report June 2021 [April 2020 – June 2021]
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Abstract:The goal of this study was to conduct a thorough literature review to determine the overall state-of-practice with regards to AASHTO Mechanistic Empirical Design Guide (MEPDG) implementation with focus on local verification and calibration. The literature review presented outlines the steps taken by other state agencies to perform local calibration. Specifically, the following key areas were addressed for each agency: distresses calibrated, steps followed for the calibration, sample size and sites selection, existing data utilized, laboratory and field testing to generate the required inputs, traffic data, climatic data, problems encountered, and any reported benefits from the calibration. Additionally, initial testing was conducted on typical plant-produced mixtures sampled from across Massachusetts in an attempt to accelerate future phases of this research. The results were input into the AASHTOWare® Pavement M-E Design software to conduct trial designs. This report outlines the work conducted in phase one of a four phase larger research project aimed at implementing the AASHTO MEPDG in Massachusetts.
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