In urban planning, sustainability is often synonymous to urban livability. Urban livability seeks to improve living conditions of current and future outdoor users and hence it has become a key priority for cities authorities. Melbourne, as the world second most livable city, sets out to improve its urban life quality through various policies and initiatives. One area of improvement is the creation of sustainable outdoor spaces that provides comfortable thermal conditions for its residents. The relevant strategies to create such spaces are supported by the knowledge of human thermal comfort requirements, particularly during the summer thermal conditions. Hence, this study aims to develop comprehensive thermal comfort benchmarks for Melbourne during the summer. This study builds on 4717 subjective survey responses collected in seven urban environments with different settings. Data collection was performed in Melbourne's summer from 2012 to 2015. Physiological Equivalent Temperature (PET) was used to predict thermal comfort conditions. The results were based on four thermal comfort measures (neutral temperature, preferred temperature, acceptable thermal range and thermal comfort range). The analysis' outcomes suggested that Melbourne's summer acceptable thermal range is between 11.3 °C and 20.3 °C, the preferred temperature value is 21.5 °C, the neutral temperature value is 16.1 °C. Furthermore, PET index was calibrated against thermal responses collected from the surveys. The results would help to inform policies aiming to create sustainable outdoor spaces that are pleasant to outdoor users in Melbourne.

在城市规划中，可持续性通常是城市宜居性的代名词。城市宜居性旨在改善当前和未来户外用户的生活条件，因此，它已成为城市当局的首要任务。墨尔本作为世界第二宜居城市，着手通过各种政策和倡议来改善其城市生活质量。改进的领域之一是创建可持续的户外空间，为居民提供舒适的热力条件。创造这种空间的相关策略得到了人类对热舒适性要求的了解，尤其是在夏季炎热条件下。因此，本研究旨在为夏季制定全面的墨尔本热舒适性基准测试。本研究基于在七个不同环境的城市环境中收集的4717个主观调查答复。数据收集于2012年至2015年的墨尔本夏季进行。生理等效温度（PET）用于预测热舒适条件。结果基于四个热舒适度度量（中性温度，首选温度，可接受的热范围和热舒适度范围）。分析结果表明，墨尔本夏季可接受的温度范围在11.3°C和20.3°C之间，首选温度值为21.5°C，中性温度值为16.1°C。此外，针对从调查中收集到的热响应对PET指数进行了校准。