Impacts of future climate change on flexible road pavement economics: A life cycle costs analysis of 24 case studies across the United States

dc.creatorQiao, Yaning
dc.creatorGuo, Yaru
dc.creatorStoner, Anne M.K. (TTU)
dc.creatorSantos, João
dc.date.accessioned2023-04-11T18:16:00Z
dc.date.available2023-04-11T18:16:00Z
dc.date.issued2022
dc.description© 2022 The Author(s) cc-by-nc-nd
dc.description.abstractHighway agencies are facing pressure for repairing and replacing underfunded and aged road pavement networks that were initially designed for historical climatic conditions. Road pavements must be updated while accounting for the impacts of climate change, which are likely to be exacerbated in the years to come, and with limited budgets. Methodologies and frameworks that help agencies incorporate the long-term effects of climate change on pavement performance and make informed decisions on how to spend their limited funds are therefore of utmost importance. This paper presents a methodological framework that combines downscaled climate projections, pavement performance predictions using the AASHTOWare Pavement ME DesignTM tool, maintenance and rehabilitation strategies, and life cycle costs analysis (LCCA) in a comprehensive system. The proposed methodological framework was adopted in the LCCA of 24 case studies across the contiguous United States under four alternative periods corresponding to simulated climate projections for four 20-year periods (1981-2000, 2001-2020, 2041-2060, and 2081-2100) with a higher Representative Concentration Pathway (RCP8.5). The case study results show that climate change per degree Celsius will lead to approximately $650-700 million/year additional agency costs in the U.S. In addition, climate change will have greater impacts on the costs incurred during the maintenance and end-of-life phases.
dc.identifier.citationQiao, Y., Guo, Y., Stoner, A.M.K., & Santos, J.. 2022. Impacts of future climate change on flexible road pavement economics: A life cycle costs analysis of 24 case studies across the United States. Sustainable Cities and Society, 80. https://doi.org/10.1016/j.scs.2022.103773
dc.identifier.urihttps://doi.org/10.1016/j.scs.2022.103773
dc.identifier.urihttps://hdl.handle.net/2346/92708
dc.language.isoeng
dc.subjectClimate change
dc.subjectlife cycle costs
dc.subjectlife cycle pavement performance
dc.subjectpavement
dc.subjecttransportation infrastructure
dc.titleImpacts of future climate change on flexible road pavement economics: A life cycle costs analysis of 24 case studies across the United States
dc.typeArticle

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