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

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.

• Record URL:
  https://www.ugpti.org/resources/reports/details.php?id=940
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/42397
• Summary URL:
  https://rosap.ntl.bts.gov/view/dot/42398
• Supplemental Notes:
  • This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  University of Wyoming, Laramie

  Department of Civil and Architectural Engineering
  1000 East University Avenue
  Laramie, WY  United States  82071

  Mountain-Plains Consortium

  North Dakota State University
  Fargo, ND  United States  58108

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Authors:
  • Ng, Kam
  • Brhanemeskel, Melake A
  • Ksaibati, Khaled
  • 0000-0002-9241-1792
• Publication Date: 2019-3

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; Maps; References; Tables;
• Pagination: 94p

Subject/Index Terms

• 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; Subgrade (Pavements); Thickness
• Identifier Terms: Mechanistic-Empirical Pavement Design Guide
• Geographic Terms: Wyoming
• Subject Areas: Design; Highways; Pavements;

Filing Info

• Accession Number: 01707770
• Record Type: Publication
• Report/Paper Numbers: MPC 19-380
• Contract Numbers: MPC-471
• Files: UTC, NTL, TRIS, ATRI, USDOT
• Created Date: Jun 12 2019 9:18AM