Impact of urban heat island mitigation measures on microclimate and pedestrian comfort in a dense urban district of Lebanon
| العنوان: | Impact of urban heat island mitigation measures on microclimate and pedestrian comfort in a dense urban district of Lebanon |
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| المؤلفون: | Stéphane Ginestet, Elias Kinab, Luc Adolphe, Jeff Fahed |
| المساهمون: | Laboratoire Matériaux et Durabilité des constructions (LMDC), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Université Libanaise - Faculté de Génie, Laboratoire de recherche en architecture (LRA), Université Toulouse - Jean Jaurès (UT2J)-École nationale supérieure d'architecture de Toulouse (ENSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-École nationale supérieure d'architecture de Toulouse (ENSA Toulouse) |
| المصدر: | Sustainable Cities and Society Sustainable Cities and Society, Elsevier, 2020, 61, pp.102375. ⟨10.1016/j.scs.2020.102375⟩ Sustainable Cities and Society, 2020, 61, pp.102375. ⟨10.1016/j.scs.2020.102375⟩ |
| بيانات النشر: | Elsevier BV, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Mediterranean climate, Geography, Planning and Development, 0211 other engineering and technologies, Microclimate, Cool materials, Transportation, 02 engineering and technology, Pedestrian, UHI mitigation strategies, 010501 environmental sciences, 01 natural sciences, Urbanization, 11. Sustainability, ENVI-met, Urban district, 021108 energy, Urban heat island, Environmental planning, Outdoor thermal comfort, 0105 earth and related environmental sciences, Civil and Structural Engineering, [SPI.GCIV.CD]Engineering Sciences [physics]/Civil Engineering/Construction durable, Renewable Energy, Sustainability and the Environment, Thermal comfort, Albedo, Water sources, 13. Climate action, Environmental science, Physiological equivalent temperature, Urban vegetation, [SPI.GCIV.EC]Engineering Sciences [physics]/Civil Engineering/Eco-conception |
| الوصف: | International audience; The interaction between microclimate and buildings is predominant in urban areas. Thus, the urbanization constitutes the main cause of UHI formation. During the last years, several studies exposed the critical effects of UHI in the Mediterranean climate. As a result, there is a need for sustainable systems and urban policies to reduce heat islands in urban areas. This paper aims to present the impact of some UHI mitigation strategies in a Mediterranean city, Beirut Lebanon. Numerical microclimate simulations of an existing Lebanese district of Dora in Beirut, are performed using ENVI-met software. The study focuses on the potential of UHI mitigation scenarios to create freshness in summer conditions. The strategies are based on the increase of green surfaces, on the installation of water spray and fountains, and on the increase of the albedo of the facades and roofs of the buildings. A focus is carried out on white models, dealing with the albedo modification of roads and buildings. The effect of the proposed strategies on the pedestrian comfort is also evaluated by using the physiologically equivalent temperature PET. Results pointed out that implementation of water features contributes to a significant reduction of ambient temperature reaching a maximum of 5 °C. In term of outdoor thermal comfort, the results showed the important role of green areas on the improvement of pedestrian comfort during daytime. Finally, this research supports a set of actions that could be helpful for urban designer to create cool islands in the Lebanese neighborhoods. |
| تدمد: | 2210-6707 |
| DOI: | 10.1016/j.scs.2020.102375 |
| DOI: | 10.1016/j.scs.2020.102375⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bb43a49526123da1ed65bf1a6e4f2f0 https://doi.org/10.1016/j.scs.2020.102375 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....4bb43a49526123da1ed65bf1a6e4f2f0 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 22106707 |
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| DOI: | 10.1016/j.scs.2020.102375 |