The aim of this article is to determine the ability of UTCI (universal thermal climate index) to assess summer micrometeorological comfort in the climatic and sociocultural context of Algiers (Algeria). This widely recognised thermo-physiological index is compared with a subjective index, APCI (average perceived comfort index), based on a definition of comfort established beforehand by the studied population. A new procedure was applied based on “micrometeorological walk” in order to collect objective and subjective experimental data simultaneously. From the data collected, both indices were calculated for 12 urban configurations. The correlation between UTCI and the subjective APCI shows that UTCI is able to correctly predict and assess the level of outdoor human thermal comfort felt in the south Mediterranean climate. However, the evaluation scale for heat stress in UTCI is inappropriate in the studied context, unlike that proposed by APCI, which takes sociocultural differences into account, as well as the different perceived environmental and urban aspects that may influence the perception of outdoor thermal comfort. However, this comparison of UTCI and APCI enables us to put forward a contextualised model of the prediction and assessment of perceived outdoor thermal comfort based on an APCI estimate, from which users’ true perception can be assessed, derived exclusively from physical measurements. Designers can therefore evaluate their proposals using digital architectural and urban modelling tools that include calculation of UTCI, by adjusting the heat stress evaluation scale to match the sociocultural context of the project.

中文翻译：

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预测适合城市空间设计师的室外人体热舒适度：在阿尔及尔（阿尔及利亚）的背景下检查 UTCI 和 APCI

本文的目的是确定 UTCI（通用热气候指数）在阿尔及尔（阿尔及利亚）的气候和社会文化背景下评估夏季微气象舒适度的能力。根据研究人群事先确定的舒适度定义，将此广泛认可的热生理指数与主观指数 APCI（平均感知舒适度指数）进行比较。应用了一种基于“微气象行走”的新程序，以同时收集客观和主观的实验数据。根据收集的数据，计算了 12 个城市配置的两个指数。UTCI 与主观 APCI 之间的相关性表明，UTCI 能够正确预测和评估在南地中海气候下的室外人体热舒适度水平。然而，与 APCI 提出的不同，UTCI 中的热应激评估量表在所研究的环境中是不合适的，后者考虑了社会文化差异，以及可能影响室外热舒适感知的不同感知环境和城市方面。然而，UTCI 和 APCI 的这种比较使我们能够基于 APCI 估计值提出预测和评估感知室外热舒适度的上下文模型，从中可以评估用户的真实感知，完全来自物理测量。因此，设计师可以通过调整热应激评估量表以匹配项目的社会文化背景，使用包括 UTCI 计算在内的数字建筑和城市建模工具来评估他们的提案。