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Open AccessArticle

A Framework for Introducing Climate-Change Adaptation in Pavement Management

1
JFK Environmental Services LLC, Upton, MA 01568, USA
2
Department of Civil and Environmental Engineering, University of New Hampshire, Durham, NH 03824, USA
3
School for the Environment, University of Massachusetts-Boston, Boston, MA 02125, USA
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(16), 4382; https://doi.org/10.3390/su11164382
Received: 12 July 2019 / Revised: 7 August 2019 / Accepted: 8 August 2019 / Published: 13 August 2019
(This article belongs to the Special Issue Sustainable Infrastructure Materials and Systems)
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Abstract

Greenhouse gas emissions have caused global temperatures to rise since the mid-20th century accompanied by sea-level rise (SLR). Temperature increases and SLR-induced groundwater rise have been shown to cause premature pavement failure in many roadway structures. Hybrid bottom-up/top-down (hybrid) adaptation approaches have shown promise by initially investigating an asset’s response to incremental environmental change and then identifying the timing of critical effects for budgetary planning. This improves practitioners’ understanding of the asset’s climate resiliency and informs adaptation-plan development to minimize both cost and risk. In this study, a hybrid approach to pavement adaptation with climate-change-induced temperature and groundwater rise is demonstrated at a case-study site in coastal New Hampshire. The hot-mix-asphalt (HMA) thickness that achieves a minimum of 85% reliability is calculated for 70 combinations of incremental temperature and groundwater rise. Increasing the base-layer thickness improves resiliency against rising temperatures, but rising groundwater diminishes this improvement demonstrating that both HMA and base-layer thickness increases are needed. Thirteen adaptation pathways are evaluated for pavement performance, life-cycle costs, and road-surface inundation over a 60-year pavement management period. A stepwise and flexible adaptation plan is developed that includes HMA overlays with prescribed thickness and application timing, base-layer rehabilitation options, and re-evaluation opportunities. View Full-Text
Keywords: pavements; climate change; sea-level rise; adaptation planning; groundwater rise; temperature rise; infrastructure; resiliency; life-cycle costs; pavement management systems pavements; climate change; sea-level rise; adaptation planning; groundwater rise; temperature rise; infrastructure; resiliency; life-cycle costs; pavement management systems
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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MDPI and ACS Style

Knott, J.F.; Jacobs, J.M.; Sias, J.E.; Kirshen, P.; Dave, E.V. A Framework for Introducing Climate-Change Adaptation in Pavement Management. Sustainability 2019, 11, 4382.

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