Abstract
Carbon footprint is a term used to describe the total amount of carbon dioxide and other green house gases (GHG) emissions for which an individual/process/organization/activity is responsible. In Egypt, the construction of flexible asphalt pavement has a significant impact on the environment. Therefore; the main objective of this study is to propose a methodology for measuring carbon emissions of asphalt pavement construction using a created model based on Life Cycle Assessment (LCA) as an automatic tool for carbon estimations. The paper reports a case study of GHG emissions from a typical asphalt pavement construction project in Egypt. Field data were analyzed through the created model and the results show that the GHG emissions from the transportation during construction stage are the highest, and account for about 46% of the total amount. Reduce the transportation distance will help to decrease the GHG emissions. The flexible pavement LCA can help to increase the environmental performance of highways construction and guide decision makers towards road sustainability management.
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