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作者

Jian Guo;Bingxia Sun;Zhe Qin;Man Sing Wong;Siu Wai Wong;Chi Wai Yeung;Hao Wang;Sawaid ABBA;Geoffrey Qiping Shen

来源

CITIES,Vol.99,Issue1,Article 102585

语言

英文

关键字

Spatial analysis;Computational fluid dynamics;Simulation;Building regulations and controls;High-density city

作者单位

Department of Building and Real Estate, The Hong Kong Polytechnic University, Hong Kong;Department of Land Surveying and Geo-informatics, The Hong Kong Polytechnic University, Hong Kong;School of Management Science and Engineering, Central University of Finance and Economics, Beijing, China;Department of Building and Real Estate, The Hong Kong Polytechnic University, Hong Kong;Department of Land Surveying and Geo-informatics, The Hong Kong Polytechnic University, Hong Kong;School of Management Science and Engineering, Central University of Finance and Economics, Beijing, China

摘要

With the development of global urbanization, high-density cities faces enormous challenges on land supply. Hong Kong is a megacity with a long-term lack of land and housing supply. To increase the development intensity of built-up areas in Hong Kong, a minor relaxation of plot ratio/building height restrictions for twenty-one sites in the three target study areas of Kai Tak Development Area has been approved by the Town Planning Board in 2015. This study aims at providing scientific evidence on the impact of this relaxation and possible further relaxations using 3D spatial analyses and simulation technologies. After a 3D model of Kai Tak and surrounding areas being generated, effects of increased PR/BH on skyline, visibility, shadow and insolation, air temperature, and wind ventilation were successfully analysed based on five scenarios. Research findings indicated that, except the extreme case of Scenario 5, no significant changes were found in Scenario 2, Scenario 3 and Scenario 4 when compared with the original plan of Scenario 1. As a pilot study focusing in Hong Kong, this research may also serve to provide new methodological and theoretical insights to facilitate rational discussion and debate on changing land development density in other similar hyper-dense cities.