Journal article

Retrofitting precincts for heatwave resilience: Challenges and barriers in Australian context

16 Jan 2015
Description

As the frequency and intensity of heatwaves are growing in Australia, strategies to combat heat are becoming more vital. Cities are exposed to urban heat islands (UHIs) due to excess urbanisation. In this study, a definition of urban heatwave (UHW) is conceptualised to investigate the combined impacts of heatwaves and UHIs. To quantify the negative impacts of UHW, indicators—such as excess morbidity, electricity and water consumption—are considered. The intensity of UHWs is calculated using the unit of excess heat factor (EHF), developed by the Australian Bureau of Meteorology. EHF enables the comparability of UHWs in different geographical locations. Using the indicators and the intensity of UHWs, a calculation method to quantify heatwave resilience at a precincts scale is proposed. The study summarises the assumed influential factors of precinct heatwave resilience based on the existing literature and propose a “cool retrofitting toolkit” (CRT). CRT creates the framework to assess the adaptation to and mitigation of UHWs available to retrofit existing precincts, and to evaluate potential retrofitting strategies in terms of energy and carbon efficiency, financial affordability and perceived acceptability by population. This study illuminates the importance of climate, function, built environment and population characteristics-conscious retrofitting.

Keywords: urban heatwave indicators; retrofitting toolkit; heatwave resilience; heatwave perception; precinct; adaptation; mitigation; adverse health outcome; Australian cities

Publication Details
Identifiers: 
DOI: 
10.3390/challe6010003
Volume: 
2015
Issue: 
6
Pagination: 
3-25
Language: 
License Type: 
CC BY
Peer Reviewed: 
Yes
Published year only: 
2015
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