Evaluation of Pavement Design using MEPDG

Quarterly Reports Other Documents Final Report
Final Report

Primary Investigator

Hani Titi
University of Wisconsin — Milwaukee
PO Box 784, Milwaukee WI  53201
hanititi@uwm.edu

Abstract

In April 2011, AASHTO released the mechanistic-empirical pavement design program DARWin-ME, which became available to universities in July 2011. The current research will identify all research projects conducted for WisDOT to obtain the mechanistic-empirical pavement design input parameters. Comprehensive analysis will be conducted to investigate the effect of various input parameter on pavement design using the mechanistic-empirical methodology. As an example, the resilient modulus is an input parameter to characterize base course layers as well as subgrade soils(unbound materials). This input parameter in a new concept for WisDOT, which uses the AASHTO 1972 pavement design. Analysis will be conducted to investigate the effect of the variation in the resilient modulus on the pavement thickness design as well as pavement performance. This analysis will include the study of the local environment (temperature, precipitation, etc.) on pavement design and performance.

Objectives

Identify all input parameters employed in Wisconsin for application in mechanistic-empirical pavement design.

Tasks

  1. Review MEPD for all input parameters
  2. Obtain research studies from Wisconsin
  3. Determine reasonable ranges of parameters for Wisconsin applications
  4. Perform sensitivity analysis within MEPD on those parameters
  5. Write working paper.

Project Information

  • Duration: XX months
  • Dates: Project completion on May 20, 2013
  • Budget: $22,000 (with $21,500 in matching funds)
  • Student Involvement: One graduate student
  • Modal Orientation: Highway
  • Project ID: CFIRE 05-20
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