Zheng Degao, Dong Shumin, Lin Chenhui

Keywords： Medium Density; FAR; Building Height; Open Space Rate; Urban Density Zoning; Comprehensive Urban Benefits; Planning Administration; Building Capacity

Abstract：

High-density city construction has always been a common feature of Asian cities. While solving the man-land contradiction, it has indeed increased the health, safety and ecological risks of the city. With the outbreak of the Coronavirus Disease 2019 (COVID-19), the call for reasonable urban density is increasing. By reviewing the relevant researches on urban density at home and abroad, it is believed that FAR, building height and open space rate are the three key indicators to define urban density in block scale, and there is a “medium density”which can maximize the overall benefits of the city. Combining with the researches on density zoning of typical Asian metropolises, this paper gives the appropriate indicators for “medium density” of Chinese metropolises (medium intensity, more open space and diverse building heights), and proposes to build “olive structure” of density zoning to guide urban construction towards medium density.

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