[From modelling to pilot site to improve the thermal comfort: the case study of Genoa (Northern Italy) within the Climactions project].

IF 1.5 4区医学 Q4 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH

Epidemiologia & Prevenzione Pub Date : 2025-03-01 DOI:10.19191/EP25.2-3.S1.057

Katia Perini, Chiara Calise, Paola Castellari, Elena Nicosia, Daniele Colobraro, Stefania Manca, Pierpaolo Grignani, Enrica Roccotiello

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引用次数: 0

Abstract

Objectives: to estimate the microclimatic improvement due to the introduction of Nature-based Solutions (NbS) in a small square (about 1,500 m²) located in a densely built area of the city of Genoa (Liguria Region, Northern Italy), and subject to the Urban Heat Island phenomenon (UHI).

Design: through the microclimatic simulation results of the current state, obtained via the ENVI-met V 4.4.5 software, different microclimatic cooling scenarios were developed and simulated, introducing different vegetation layers (herbaceous, shrubby, arboreal), in increasing quantities per scenario, and clear surfaces. One of them was then selected for the implementation of the pilot project.

Setting and participants: the study was done on Piazza Metastasio in the Cornigliano neighbourhood (VI District) in Genoa, in an area delimited by Via Cornigliano (North), Polcevera mouth (South), railway station (West), and Fiumara commercial complex (East). This area was particularly critical due to population density, absence of significant green areas, and weather and climate conditions.

Main outcome measures: Evaluating the Universal Thermal Climate Index (UTCI) allowed to estimate the users' feelings of well-being/malaise inside the examined area, and the potential improvement of these perceptions through targeted greening scenarios.

Results: the simulations of the selected scenario for the pilot project (scenario with minimum greening and with the best microclimatic performance), carried out for one of the hottest days of the last 20 years, show a decrease in the air temperature lower by around 1.8°C, compared to the current state (t current state: 34.4°C, t scenario: 32.6°C). The UTCI shows a decrease of around 4.1°C, compared to the current state, in correspondence with the trees (t current state: 42.0°C, t scenario: 37.9°C).

Conclusions: the kind and the coverage ratio of the plant layers play a fundamental role on the microclimatic parameters with thermal comfort improvement (up to -1.8°C t air, up to -5.4°C UTCI), despite a reduction in the air flow (up to -0.3 m/s).

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[从建模到改善热舒适的试点：气候项目中热那亚（意大利北部）的案例研究]。

目标：估计由于在热那亚市（利古里亚地区，意大利北部）一个人口密集地区的一个小广场（约1500平方米）引入基于自然的解决方案（NbS）而对小气候的改善，并受到城市热岛现象（UHI）的影响。设计：通过ENVI-met V 4.4.5软件获得的当前状态的小气候模拟结果，开发和模拟不同的小气候降温场景，引入不同的植被层（草本、灌木、乔木），每个场景的数量增加，表面清晰。然后选出其中一个国家来执行试点项目。环境和参与者：研究在热那亚Cornigliano社区（第六区）的Metastasio广场进行，该区域由Via Cornigliano（北），Polcevera口（南），火车站（西）和Fiumara商业综合体（东）划分。由于人口密度、缺乏重要的绿地以及天气和气候条件，该地区尤为重要。主要结果测量：评估通用热气候指数（UTCI）可以估计用户在研究区域内的幸福感/不适感，以及通过有针对性的绿化方案改善这些感知的潜力。结果：在过去20年中最热的一天，对试点项目选择的情景（绿化最少和小气候表现最好的情景）进行的模拟显示，与当前状态（当前状态：34.4°C，情景：32.6°C）相比，空气温度降低了约1.8°C。与当前状态相比，UTCI下降了约4.1°C，与树木相对应（当前状态：42.0°C，情景：37.9°C）。结论：植物层的种类和覆盖度对微气候参数起着根本性的作用，尽管空气流量减少（高达-0.3 m/s），但热舒适改善（高达-1.8°C t空气，高达-5.4°C UTCI）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Epidemiologia & Prevenzione 医学-公共卫生、环境卫生与职业卫生

CiteScore

2.60

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： Epidemiologia & Prevenzione, oggi organo della Associazione italiana di epidemiologia, raccoglie buona parte delle migliori e originali esperienze italiane di ricerca epidemiologica e di studio degli interventi per la prevenzione e la sanità pubblica. La rivista – indicizzata su Medline e dotata di Impact Factor – è un canale importante anche per la segnalazione al pubblico internazionale di contributi che altrimenti circolerebbero soltanto in Italia. E&P in questi decenni ha svolto una funzione di riferimento per la sanità pubblica ma anche per i cittadini e le loro diverse forme di aggregazione. Il principio che l’ha ispirata era, e rimane, che l’epidemiologia ha senso se è funzionale alla prevenzione e alla sanità pubblica e che la prevenzione ha ben poche possibilità di realizzarsi se non si fonda su valide basi scientifiche e se non c’è la partecipazione di tutti i soggetti interessati. Modalità di comunicazione aggiornate, metodologia statistica ed epidemiologica rigorosa, validità degli studi e solidità delle interpretazioni dei risultati sono la solida matrice su cui E&P è costruita. A questa si accompagna una forte responsabilità etica verso la salute pubblica, che oggi ha ampliato in forma irreversibile il suo orizzonte, e include in forma sempre più consapevole non solo gli esseri umani, ma l’intero pianeta e le modificazioni che l’uomo apporta all’universo in cui vive. L’ambizione è che l’offerta di nuovi strumenti di comunicazione, informazione e formazione, soprattutto attraverso l''uso di internet, renda la rivista non solo un tradizionale veicolo di contenuti e analisi scientifiche, ma anche un potente strumento a disposizione di una comunità di interessi e di valori che ha a cuore la salute pubblica.