www.mlit.go.jp/tec/koujisekisan_00001.html

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技術調査：土木工事積算基準関係 - 国土交通省

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https://www.mlit.go.jp/tec/koujisekisan_00001.html

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This page provides technical information on civil engineering cost estimation standards from the Ministry of Land, Infrastructure, Transport and Tourism. It presents updates on cost estimation guidelines and standards, including indirect construction costs, statutory welfare costs, disaster reconstruction accounting methods for major earthquakes, site environment improvement expenses, and standard daily work rates. The page compiles information from fiscal years 2023 through 2026, covering multiple disaster recovery projects and the construction package-type estimation method.