Implementing the AASHTO Mechanistic --Empirical Pavement Design Guide (Phase III)

The American Association of State Highway and Transportation Officials' (AASHTO's) new Mechanistic-Empirical Pavement Design (PMED) method can be a significant improvement in pavement design but the models must be calibrated using local data to accurately predict design performance. Due to the complexity of the research problem, a four-phased approach over several years was deployed. Following the completion of Phase I -- Literature Review & State of Practice Assessment in 2021 and Phase II -- Development of an AASHTOWare® Pavement M-E User Manual and Development of a Local Experimental Plan and Sampling Template in 2022, this third phase is to evaluate the sample size for distress prediction models, and to collect/obtain relevant field data (such as distress data, Falling Weight Deflectometer data, etc.) and laboratory data (such as mixture production data, mixture performance data, binder properties, etc.) that are needed for the local calibration of the AASHTO Level 1 PEMD prediction models. The data collected in this phase will be then used for research effort in Phase IV -- Calibration and Validation of the M-E Prediction Models based on Massachusetts conditions. The experimental plan designed for this phase of the project includes: (1) review the previously developed local experimental plan and sampling template from Phase II; (2) evaluate the estimated sample size for bias and precision for each of the distress prediction models; (3) select roadway segments and plant produced mixtures, mixtures that represent the spectrum of mixtures produced in Massachusetts will be collected and tested in Phase III; (4) continued laboratory testing of mixtures to obtain data for Level 1 PMED implementation; (5) conduct field and forensic investigations; and (6) establish a calibration database using excel.


  • English


  • Status: Active
  • Funding: $400167
  • Contract Numbers:


  • Sponsor Organizations:

    Federal Highway Administration

    Office of Planning, Environment and Realty (HEP)
    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Managing Organizations:

    Massachusetts Department of Transportation

    10 Park Plaza
    Boston, MA  United States  02116
  • Performing Organizations:

    University of Massachusetts, Dartmouth

    Department of Civil and Environmental Engineering
    285 Old Westport Road
    North Dartmouth, MA  United States  02747
  • Principal Investigators:

    Mogawer, Walaa

  • Start Date: 20221122
  • Expected Completion Date: 20240531
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01889898
  • Record Type: Research project
  • Source Agency: Massachusetts Department of Transportation
  • Contract Numbers: 120714
  • Files: RIP, STATEDOT
  • Created Date: Aug 11 2023 3:12PM