Pavement Life Cycle Assessment Workshop: Discussion Summary and Guidelines

Although there have been several life cycle assessment (LCA) studies on the subject of pavement, nearly all of them have focused on pavement type selection (asphalt or concrete) for new pavements for a narrow range of conditions, and the results have offered conflicting answers to questions about the resulting environmental impacts. This inconsistency is due to the lack of consistent LCA practice and to use of different data sources. Among the specific recurring problems found in LCA are unrepresentative functional units and analysis periods, a lack of transparency in impact allocation of the bitumen-refining process, and incomplete consideration of the full life cycle. To address these issues work has been undertaken to develop recommended common practices for conducting LCA for pavements. The first-stage research product intended for pavement LCA practitioners is the UCPRC Pavement LCA Guideline, which includes a highlevel LCA framework for pavements, as well as some recommended data and models that have been used in California and elsewhere in the U.S. In May 2010, a workshop was held in Davis, California, to discuss the first draft of this guideline, and to answer some key questions regarding LCA practice and the application of the results. This technical memorandum contains a summary of the workshop discussions and the final draft Guideline based on the discussions.

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01448508
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Report/Paper Numbers: UCPRC-TM-2010-03, CA129999A
  • Files: CALTRANS, TRIS, STATEDOT
  • Created Date: Oct 2 2012 9:13AM