The quality of outdoor space is becoming increasingly important with the growing rate of urbanization. Visual, acoustic, and thermal balance degradation are all negative impacts associated with outdoor comfort in dense urban fabrics. Urban morphology thus needs assessment and optimization to ensure favorable outdoor thermal comfort (OTC). This study aims to evaluate the thermal performance of streets in residential zones of Liverpool, NSW, Australia, and tries to improve their comfort index (Physiological Equivalent Temperature) to reveal optimum urban configurations. This evaluation is done by investigating the following urban design factors affecting OTC using computational simulation techniques: street orientation, aspect ratio, building typology, and surface coverage. Our findings reveal that street canyon orientation is the most influential factor (46.42%), followed by aspect ratio (30.59%). Among the influential meteorological parameters (air temperature, wind speed, humidity and solar radiation), wind velocity had the most significant impact on the thermal comfort of the outdoor spaces in this coastal region, which typically experiences intense airflow. The results of our analysis can be utilized by multiple stakeholders, allowing them to understand and extract the most vital design factors which contextually influence the thermal comfort of outdoor spaces. Outdoor thermal comfort has a direct effect on the health and wellbeing of occupants of outdoor spaces.

随着城市化速度的加快，户外空间的质量变得越来越重要。视觉、声学和热平衡退化都是与密集城市结构中的户外舒适度相关的负面影响。因此，城市形态需要评估和优化，以确保有利的室外热舒适性 (OTC)。本研究旨在评估澳大利亚新南威尔士州利物浦住宅区街道的热性能，并试图提高其舒适指数（生理等效温度）以揭示最佳城市配置。该评估是通过使用计算模拟技术调查以下影响 OTC 的城市设计因素来完成的：街道方向、纵横比、建筑类型和表面覆盖率。我们的研究结果表明，街道峡谷方向是最有影响的因素（46.42%），其次是纵横比（30.59%）。在有影响的气象参数（气温、风速、湿度和太阳辐射）中，风速对沿海地区室外空间的热舒适性影响最为显着，通常会经历强烈的气流。我们的分析结果可以被多个利益相关者利用，使他们能够理解和提取最重要的设计因素，这些因素会影响室外空间的热舒适性。室外热舒适度直接影响室外空间居住者的健康和福祉。湿度和太阳辐射），风速对这个沿海地区室外空间的热舒适性影响最显着，通常会经历强烈的气流。我们的分析结果可以被多个利益相关者利用，使他们能够理解和提取最重要的设计因素，这些因素会影响室外空间的热舒适性。室外热舒适度直接影响室外空间居住者的健康和福祉。湿度和太阳辐射），风速对这个沿海地区室外空间的热舒适性影响最显着，通常会经历强烈的气流。我们的分析结果可以被多个利益相关者利用，使他们能够理解和提取最重要的设计因素，这些因素会影响室外空间的热舒适性。室外热舒适度直接影响室外空间居住者的健康和福祉。让他们能够理解和提取最重要的设计因素，这些因素会影响室外空间的热舒适性。室外热舒适度直接影响室外空间居住者的健康和福祉。让他们能够理解和提取最重要的设计因素，这些因素会影响室外空间的热舒适性。室外热舒适度直接影响室外空间居住者的健康和福祉。