An integrated life cycle assessment and life cycle analysis model for pavement overlay systems

LCA is an analytical technique for assessing potential environmental burdens and impacts. LCA provides metrics that can be used to measure progress toward environmental sustainability (Keoleian and Spitzley 2006). LCA studies the environmental aspects and potential impacts throughout a product’s life from raw material acquisition through production, use and disposal (ISO 1997). An LCA model of a pavement overlay system was developed prior to this study’s integration of an LCA and LCCA model. The LCA development is described in Zhang et al (2007).