Impact of climate change on pavement structural performance in the United States

摘要: Abstract This study uses climate projections from multiple models and for different regions to investigate how change may impact the transportation infrastructure in United States. Climate data both an ensemble of 19 at RCP8.5 RCP4.5 as well three individual prediction same Representative Concentration Pathways (RCP) levels is used. These are integrated into AASHTOWare Pavement ME software predict pavement performance. Comparisons made between predicted performance with respect typical distresses using historical projection data. Though there substantial variation terms magnitude impact, consistency results suggest that projected changes highly likely result greater and/or earlier failure pavement. finding consistent across all zones studied, but varies 2–9% fatigue cracking 9–40% AC rutting end 20 years depending on region section model also compares impacts incorporating temperature only precipitation projections. In this respect, sections considered do not show any difference when predictions inputs software.