Featured General Projects

December 1, 2020

Critical Review and Gap Analysis of Impacts from Pavements on Urban Heat Island

The objective of this study is to identify knowledge gaps regarding the scientific understanding of UHI and effective mitigation measures, with a focus on the use of cool pavements. We first reviewed scientific papers, reports, and online articles published in the past decade to summarize recent scientific advances in cool pavements. We reviewed existing efforts on reflective pavements, permeable pavements, and other innovative pavement designs used in UHI mitigation. Reflective pavements cool surface temperature by absorbing less solar radiation and therefore reduce summer energy consumption and carbon emissions, but they may lead to unintended consequences such as increased energy and cost for heating during winters and increased human thermal exposure.

An online survey was conducted to learn the general perceptions of UHI mitigation strategies and their implementation from personnel in the industry, academia, government agencies, nonprofit organizations, and interested professionals. We identified 12 knowledge gaps based on the current state of research and implementation as well as the general perceptions learned from the survey results.

Read the report: