Street design scenarios using vegetation for sustainable thermal comfort in Erzurum, Turkey
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RESEARCH ARTICLE
Street design scenarios using vegetation for sustainable thermal comfort in Erzurum, Turkey Sevgi Yilmaz 1
&
Başak Ertem Mutlu 1 & Ayşegül Aksu 1 & Emral Mutlu 1 & Adeb Qaid 2
Received: 28 February 2020 / Accepted: 17 August 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Urbanization models that do not comply with the planning criteria are affecting human lives. In urban areas, street trees have positive contributions to the ecosystem and human thermal comfort. In this study, the thermal comfort of the main streets that connect people to each other and provide access and transportation has been thermally explored. Cumhuriyet Street, which is one of the vibrant streets in Erzurum, was selected as a case study scenario in the winter and summer periods in 2018 by using the ENVI-met V. 4.4.2 winter model. A different green scenario is proposed, and the best thermal comfort scenario in both seasons is determined. The results show that, in the summer period, the air temperature of the greener street scenario is about 1.0 °C cooler than the existing condition and about 2.0 °C warmer in the winter period. Physiological equivalent temperature (PET) value was better in narrow canyon streets in winter months, but in wide canyon streets in summer months. The green scenarios of wide canyon streets positively affect the outdoor thermal comfort in both seasons. These results clearly imply that green streets are an appropriate strategy for city streets that suffer from discomfort levels in cold winter and hot summer periods. It has been concluded that it is possible to increase thermal comfort through improvement in the open space in street and more suitable plant preferences for livable urbanization. Planning streets in a new city characterized by summer and winter seasons should take into consideration an accurate decision for providing a thermal comfort level and healthy urbanization. Keywords Outdoor thermal comfort . Street design . Green scenario . Winter cities . ENVI-met
Introduction Responsible Editor: Philippe Garrigues * Sevgi Yilmaz [email protected]; [email protected] Başak Ertem Mutlu [email protected] Ayşegül Aksu [email protected] Emral Mutlu [email protected] Adeb Qaid [email protected] 1
Faculty of Architecture and Design, Department of Landscape Architecture, Atatürk University, 25240 Erzurum Turkey
2
Department of Architecture Engineering, Kingdom University, Riffa Kingdom of Bahrain
Today, it is well known that the most intensively used areas in the cities are transportation axes. But, it is also commonly accepted that urban open green spaces and street trees have positive effects in reducing the negative effects in the cities and in improving the thermal comfort of the site. One of the biggest urban planning difficulties in the future is to develop and protect cities as livable and sustainable places and to offer urban areas of the same quality to the growing population. For people living in cities, good quality of life largel
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