Life-cycle assessment (LCA) is a structured evaluation methodology used to analyze and quantify the environmental impacts of existing products or processes, and to evaluate differences in impacts between alternatives. It gives agencies the ability to investigate areas where they can improve. LCA Pave is a Microsoft® Excel® based tool developed by FHWA that can be used to assess environmental impacts of pavement material and design decisions. The tool is intended to be used as a training and informational product only and for voluntary use by agencies and individuals with an understanding of fundamental LCA principles. Its use is not required by Federal statute or regulation.
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