United States Department of Transportation
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Development of Innovative & Effective Training Modules and Methods for Pavement Designers for Rapid Deployment and Continuous Operation of MDPDG
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2020-08-01
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[PDF-8.36 MB]
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Edition:Final Report (October 2017–August 2020)
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Abstract:The American Association of State Highway and Transportation Officials (AASHTO) Joint Task Force on Pavements – in cooperation with the National Cooperative Highway Research Program (NCHRP) and the Federal Highway Association (FHWA) – sponsored the development of an AASHTO Mechanistic-Empirical (ME) pavement design procedure. NCHRP project 1-37A produced rudimentary software that utilized existing ME-based models and databases reflecting current state-of-the-art pavement design procedures. The Mechanistic-Empirical Pavement Design Guide (MEPDG) was completed in 2004 and released to the public for review and evaluation. A formal review was completed by an independent set of consultants under NCHRP Project 1-40A, and version 1.0 of the MEPDG was submitted in 2007 to NCHRP, FHWA, and AASHTO for further consideration as an AASHTO Standard Practice. The MEPDG was formally adopted by AASHTO as an Interim Guide in 2008. Pavement ME Design is a software upgrade to version 1.0 that became available in 2013. AASHTO is distributing and managing the software as an AASHTOWare product. This User Input Guide is more of an engineering manual for determining the inputs needed for pavement design engineers in Georgia to begin to use Pavement ME Design. Many State Highway Agencies (SHAs) implementing Pavement ME Design conduct a local calibration or verification effort to establish local inputs and determine the calibration factors that result in unbiased predictions. Forensic investigations, including materials testing and pavement performance data, are needed to establish the accuracy and bias of the distress transfer functions and International Roughness Index (IRI) prediction models. GDOT also sponsored a local calibration effort and the results from that effort were used in preparing this User Input Guide. This manual has been updated from the previous MEPDG training manual with recently measured materials properties, climate data, and traffic inputs.
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