Enhancement of Mechanistic-Empirical Pavement Design Guide for Roadway Design, and Construction in the State of Wyoming

Details

• Creators:
  Ng, Kam W. ; Ksaibati, Khaled ; Brhanemeskel, Melake A
• Corporate Creators:
  Mountain-Plains Consortium
• Corporate Contributors:
  United States. Department of Transportation. University Transportation Centers (UTC) Program ; North Dakota State University
• Subject/TRT Terms:
  • Alternatives analysis
  • Asphalt concrete pavements
  • Calibration
  • Costs
  • Dynamic penetration test
  • Mechanistic-empirical pavement design
  • Modulus of resilience
  • Pavement distress
  • Pavement performance
  • Soil penetration test
  More +
• Publication/ Report Number:
  MPC 19-380
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States;Wyoming
• Corporate Publisher:
  Mountain-Plains Consortium
• Description:
  To facilitate the implementation of Mechanistic-Empirical Pavement Design Guide (MEPDG) in Wyoming, this research investigated the relationships between subgrade resilient modulus (Mr) and the dynamic cone penetration (DCP) and the standard penetration test (SPT) results, selected three best subgrade Mr predictive models based on Mr and distress estimations, and determined the sensitivity of design parameters on pavement distresses. To enhance the prediction of pavement performance distresses, 11 subgrade Mr predictive models were evaluated, and three best models were identified and selected. All pavement distresses were found to be sensitive to asphalt concrete thickness and most distresses were found to be non-sensitive to asphalt concrete (AC) grade, base thickness, and base Mr. Finally, pavement design comparisons were made between the WYDOT 2012 user design guide and the recommended design guide based on locally calibrated properties. The average overall cost per square yard of the pavement structure designed using the WYDOT 2012 user design guide was found to be 21% higher than that based on the recommended design guide.
• Format:
  PDF
• Funding:
  MPC-471
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/42397/dot_42397_DS1.pdf
• File Type:
  [PDF - 3.76 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:056d3770bef9303cadd79c2debf5e4494a8bebc9a516891dc17c4065373468084701692e37c6caebdf600097d6d328c3c6bbd0a26383631101012a70f60ae91e