Building Shape Caused by Architectural Volume Maximization Under Sky Exposure Criterion Regulation

Abstract

In Japan, the sky exposure criterion regulation has been introduced in 2003. According to the regulation, the rate computed for the proposed building layout has to be greater than the regulated rate determined by the site shape and the road space. First we derive analytical expressions for two types of building sky exposure rates. Then we demonstrate that the sky exposure rate regulation leads to higher buildings, separate buildings, split sites and central placement positions. We also discuss the justification of the other regulation such as height limit regulation and landscape plan.

The relation between block size and building shape

“…Chau et al (2007) analyzed the optimal building shape under building height regulatory restrictions. Moreover, several Japanese researchers examined the association between building shape and city planning regulations, such as floor area ratio (FAR) and slant plane restrictions (see online Appendix 1, Table A1), as can be seen in Katsuragi and Watanabe (2000), Kirita et al (2007), Aoki et al (2010), and Kawakami and Ohnishi (2013). Shpuza and Peponis (2008) measured the floorplate shape in two different ways and analyzed its influence on office layout.…”