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Climatic and thermal comfort analysis of the Tel-Aviv Geddes Plan: A historical perspective

机译:特拉维夫盖德斯计划的气候和热舒适性分析:历史观点

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This paper examines how the first urban plan of Tel-Aviv (the Geddes Plan of 1925) [18] affected outdoor human thermal comfort in two periods: at the time of its implementation (1920-1930s) and in the present day (2010s). Additionally, this paper questions which of the two shade or wind velocity has greater influence on outdoor thermal sensation in the urban areas along the Israeli Mediterranean seashore. In order to examine the thermal sensation at street level during the 1920s and 1930s, a series of summer and winter climatological measurements were taken in the years 2010 2013 and compared to historical climatic data from the 1920s-1930s. The historical city structure was then reconstructed virtually and the climatological measurements for 2010-2013 were fed into the RayMan model to produce thermal comfort information (PET, Physiologically Equivalent Temperature). A main finding of the study is that in summer the duration of "hot" and "very hot" heat stress was double in eastwest oriented streets compared to north-south ones. Furthermore, in the winter, higher H/W ratios can increase cold thermal sensation in streets with the same orientation by up to 10 degrees C PET, due to shading. Finally, the results show that solar radiation has a greater effect on thermal sensation than wind velocity both in summer and winter seasons. Consequently, the Geddes Plan created improved thermal sensation in the main streets of Tel-Aviv, which are north-south oriented, and provided for greatly improved micro-climate conditions, in spite of the critique that Tel-Aviv "turned its back to the sea". (C) 2015 Elsevier Ltd. All rights reserved.
机译:本文研究了特拉维夫的第一个城市计划(1925年的Geddes计划)[18]在两个阶段如何影响室外人类的热舒适度:实施阶段(1920-1930年代)和当前阶段(2010年代)。 。此外,本文还质疑了两种阴影或风速中的哪一种对以色列地中海沿岸城市地区的室外热感影响更大。为了检查1920年代和1930年代街道水平的热感,在2010 2013年进行了一系列夏季和冬季气候测量,并将其与1920年代至1930年代的历史气候数据进行了比较。然后,对历史城市结构进行虚拟重建,并将2010-2013年的气候测量值输入到RayMan模型中,以产生热舒适信息(PET,生理等效温度)。该研究的主要发现是,在夏季,东西向的街道上的“热”和“非常热”的热应力持续时间是南北向的两倍。此外,在冬天,较高的H / W比会由于阴影而使具有相同方向的街道的冷热感觉提高PET最高10摄氏度。最后,结果表明在夏季和冬季,太阳辐射对热感的影响均大于风速。因此,尽管有人批评“特拉维夫”将其转向“南北”,但戈德斯计划在特拉维夫的南北向主要街道上改善了热感,并提供了极大改善的微气候条件。海”。 (C)2015 Elsevier Ltd.保留所有权利。

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