Introduction of Mechanistic-Empirical Pavement Design into Pavement Carbon Footprint Analysis

Transportation authorities and industrial organizations are currently faced with the need to incorporate greenhouse gas (GHG) impacts into pavement designs. Previous studies have evaluated GHG emissions from individual projects with unique external environment. The conclusions drawn from previous projects cannot be applied to future projects in which the external environment changes. In this paper, the authors develop a GHG estimation method to assist in low-carbon design for future pavement construction. The key of this method was using mechanistic-empirical pavement design (MEPDG) to create comparable structures with different pavement techniques, traffic volumes, climate conditions, etc. The method was illustrated on the intercounty connector (ICC), which was paved with hot mix asphalt (HMA). The result show that, if the ICC’s base layer was paved with foam stabilized base (FSB), GHG emissions would be reduced by up to 2.1 thousand metric tons, an equivalent to 54.2% of the construction emissions. The GHG savings would generate 166 thousand dollars of carbon credits, which compensate approximately 2.7% of the pavement costs.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 1171-1180
  • Monograph Title: Construction Research Congress 2016: Old and New Construction Technologies Converge in Historic San Juan

Subject/Index Terms

Filing Info

  • Accession Number: 01605896
  • Record Type: Publication
  • ISBN: 9780784479827
  • Files: TRIS, ASCE
  • Created Date: May 24 2016 3:03PM