Pone Maria, Cattaneo Francesca Romana, Gabbianelli Alessandro
Dipartimento di Architettura, Università degli Studi Roma Tre, Roma;
Dipartimento di Architettura, Università degli Studi Roma Tre, Roma.
Epidemiol Prev. 2025 Mar-Jun;49(2-3):77-85. doi: 10.19191/EP25.2-3.S1.059.
to estimate the improvement of thermal comfort at a microclimatic level after using Nature-based Solutions (NBS) and albedo mitigation strategies in a square located in a densely built-up district of the city of Rome and subject to the phenomenon of Urban Heat Island.
on the basis of the microclimatic simulation results of the current conditions of the area, obtained using the ENVI-met software, several microclimate cooling scenarios were developed and simulated; these scenarios included the integration of different layers of vegetation (herbaceous, shrubby, and arboreal) with different configurations and in different quantities and of different surfaces with high albedo index.
the studio area is Piazza Mancini, located in the Flaminio district of Rome.
the main outcome measures calculated from the simulations were the intensity of the Urban Heat Island (UHI) and the Universal Thermal Climate Index (UTCI) to estimate the perceived discomfort associated with heat and the potential improvement of such perceptions through the scenarios considered.
the simulations based on data from 22.07.2021 showed a progressive reduction of UTCI and of the UHI in the three considered scenarios. From the first scenario, which provides for greening and replacement of the asphalt with a higher albedo, it goes to the second and third scenario, which included also changes in the structure of the square (scenario 2) and functional optimization by inserting a shading structure (scenario 3). Scenarios 2 and 3 show a decrease in UTCI of almost 7ºC and UHI of about 2ºC compared to the actual state.
the three presented scenarios show how it is possible to improve the conditions of the healthiness of space (reducing the UHI by about 1.5°C) and that it is possible to transform mitigation actions into opportunities for the regeneration and enhancement of urban public spaces.
评估在罗马市一个密集建成区且受城市热岛现象影响的广场上，采用基于自然的解决方案（NBS）和反照率缓解策略后，微气候层面热舒适度的改善情况。
基于使用ENVI-met软件获得的该区域当前状况的微气候模拟结果，制定并模拟了几种微气候降温方案；这些方案包括整合不同配置、不同数量的不同植被层（草本、灌木和乔木）以及具有高反照率指数的不同表面。
研究区域为罗马弗拉米尼奥区的曼奇尼广场。
从模拟中计算出的主要观察指标是城市热岛强度（UHI）和通用热气候指数（UTCI），以估计与热相关的感知不适以及通过所考虑的方案对此类感知的潜在改善。
基于2021年7月22日数据的模拟显示，在三种考虑的方案中，UTCI和UHI逐渐降低。从第一种方案（规定绿化并用具有更高反照率的材料替换沥青）到第二种和第三种方案，第二种方案还包括广场结构的变化，第三种方案通过插入遮阳结构进行功能优化。与实际状态相比，方案2和方案3的UTCI降低了近7℃，UHI降低了约2℃。
所呈现的三种方案表明，改善空间健康状况（将UHI降低约1.5°C）是可行的，并且有可能将缓解行动转化为城市公共空间再生和提升的机会。
