Presentation - Improving the sustainability of road infrastructure requires a thorough evaluation of the environmental impacts of pavements during all phases of their life. We have developed a probabilistic LCA methodology that incorporates different sources of uncertainties. The scope of the LCA consists of all aspects of a pavement life cycle from materials extraction to initial construction, use, maintenance and rehabilitation, and end-of-life. In particular, use phase impacts including the albedo effect, pavement-vehicle interaction (PVI), carbonation, and lighting are quantified in the
approach. The methodology accounts for the range of possible outcomes from alternative designs and uses a comparison indicator to represent the relative difference in a statistical sense. We have conducted a scenario analysis as a means of testing the methodology and gaining insight on
the key drivers of the outcomes and will share these results in this presentation.
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