engineering/set construction work, but with the establishment of the independent, “demolition work business”, it is expected that a separate order for demolition work to be proceeded in the future. In order to proceed in that fashion, it is necessary to establish an official standard calculation applicable to various buildings and to increase the total transparency of the estimation. However, this can be deemed difficult due to the fact that demolition work is more of a private construction than a government construction. This entails that the estimation method is not yet functioning well, and there are differences in construction scales and unit prices depending on the region. It is desirable to place an order in consideration of technical proposals in addition to price proposals, hence introducing the technical proposal comprehensive evaluation system.In a sense, the government setting up a demolition permit category this time was like opening the Pandora’s box. It is evident that the Ministry of Land, Infrastructure, Transport and Tourism have made decisions with strong beliefs and convictions of this new industry.Although there are still many difficult challenges, continuation of studies in various fields would lead to an establishment of an ideal demolition business.This paper is an extended version of published without examination in Japanese4)1) Translated into English from http://www.qsr.mlit.go.jp/n-park/construction/pdf/160601kaiseinaiyounitsuite.pdf by Minister of Land, Infrastructure, Transport and Tourism in Japan2) Danger-Forecast-Training (KYT) sheet collection of Demolition by Japan Demolition Contractors Association, 20083) Noboru YUASA: Demolition of Skyscrapers in Japan, Journal of the college of Industrial Technology, Nihon University, Vol.2, No.2, 2021.124) Noboru YUASA: Establishment and Prospect of Demolition Business in Japan, Summary of research reports related to demolition work, Japan Demolition Contractors Association, pp.8-10, 2020.8─ 25 ─DisclosureReferences
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