I-90 West of George Paving - Warm Mix Asphalt
The Washington State Department of Transportation (WSDOT) paved about 5,000 tons of warm mix asphalt (WMA) as part of their I-90 West of George Pav...
Greenroads Manual
MR-1: Lifecycle Assessment
2 points
Goal
Create new lifecycle assessment information for roads.
Requirements
Conduct a detailed process-based lifecycle assessment (ISO-LCA) or hybrid economic input-output lifecycle assessment (Hybrid-EIO) according to the ISO14040 standard frameworks for the final roadway design alternative. Include all items on the project bid list in the initial scope of the study before any streamlining of the scope is done. Use primary data for all processes where possible. Where no primary data exists, use the best available data and justify the substitution. Choose at least three impact categories to report for the lifecycle impact assessment (LCIA) from the Environmental Protection Agency (EPA) Framework for Responsible Environmental Decision-Making (FRED: 2000). Use equivalency factors for the impact assessment based on the most current version of the indicator model referenced. FRED is available from the American Center for Life Cycle Assessment here: http://www.lcacenter.org/library/pdf/fred.pdf. Note that some equivalency factors in this document are outdated. See the following MR-1 Research section for more details.
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