This project was carried out by UNSW Sydney and Swinburne University in collaboration with government and industry partners. This report briefly outlines the achievements of the project, incorporating several previously published reports and case studies in addition to two new case studies in Parramatta and Macarthur Heights.
The main outcomes of the project include the following two online tools:
Microclimate and Urban Heat Island Mitigation Decision Support Tool
Urban Heat Island Mitigation Index
This report begins with project objectives, framework and identification of exemplar precincts for demonstrating the utility of the microclimate and urban heat island decision-support tool (UHI-DS Tool). The methods used for developing the tool are then described, followed by the key findings from three case studies that demonstrate the efficacy of the tool. Finally, the Urban Heat Island Mitigation Index is introduced, before concluding remarks are given on the project outcomes.
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Cities are vulnerable to temperatures, and the task of cooling them has proved challenging.
The CRCLCL is developing a decision-support tool that bridges the gap between research and practical application in urban microclimates by helping governments, developers and planners to mitigate vulnerability to urban heat island effects.
This strategy provides urban overheating mitigation recommendations to support the strategic planning of Sydney 2050 based on in-depth research conducted by the Cooperative Research Centre for Low Carbon Living (CRCLCL) and the University of New South Wales (UNSW).
Urban areas are usually warmer than their rural surroundings, a phenomenon known as the “heat island effect.” As cities develop, more vegetation is lost and more surfaces are paved or covered with buildings. The change in ground cover results in less shade and moisture to keep urban areas cool.
Urban spaces are experiencing warmer microclimates as the combined result of climate change and the Urban Heat Island (UHI) effect. While climate change projections indicate a likely increase of 2°C in Australia by 2070, an additional heat load of 10°C exists in the built environment.