At present, asphalt pavements in Australia are designed through a simplified procedure, which results in a single annual design temperature value, the Weighted Mean Annual Pavement Temperature (WMAPT), representing the range of temperatures in the pavement. Queensland faces extreme heat, both in terms of the incidence of consecutive hot and sunny days in summer, and in the relatively mild winters. With thick asphalt pavements increasingly being selected ahead of alternative treatments in the west and north of Queensland, there is potential for large thickness reductions without compromising performance in areas where the listed WMAPT is above 30 °C.
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