持続可能な建築物供給のためのオフサイト建設：利点・課題・今後の方向性
Offsite construction for sustainable building delivery: benefits, challenges and future directions (原題)
Úrsula Maíra Maciel Rigon Leão
🤖 gxceed AI 要約
日本語
2020〜2026年の査読論文19本を精査した批判的レビュー。モジュール型・工業化建築は廃棄物を最大83.2%（重量）削減し、LCA比較ではGHG約8%減、輸送距離120kmが閾値となる。解体設計（DfD）等の循環原則導入で温暖化ポテンシャルを最大63%削減可能だが、初期資本コスト・設計制約・物流複雑性・デジタル統合の断片化が普及の障壁となる。
English
A critical review of 19 peer-reviewed studies (2020–2026) on offsite construction. Modular systems cut waste by up to 83.2% by weight, while comparative LCAs show ~8% GHG reductions under typical logistics, with a transport threshold around 120 km. Circular Design for Disassembly can lower global warming potential by up to 63%, but high upfront costs, design constraints, logistics complexity and fragmented digital/AI integration limit adoption.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
建設業は国内排出量の約2割を占め、Scope 3上流（建材・施工）の削減がSSBJ開示でも焦点となる。本レビューはプレハブ化・DfDがScope 3削減と廃棄物削減に効くことを示し、ゼネコン・デベロッパーの脱炭素調達戦略の根拠になり得る。
In the global GX context
Construction is a hard-to-abate sector central to Scope 3 upstream accounting under ISSB/CSRD and to transition-plan credibility. The paper quantifies waste and GHG benefits of industrialized delivery and flags circular DfD as a lever, offering evidence for embodied-carbon disclosure and green building procurement criteria.
👥 読者別の含意
🔬研究者:オフサイト建設のLCA・循環性エビデンスを整理する際の基準点として、廃棄物・GHG削減幅と輸送距離閾値の数値が参照できる。
🏢実務担当者:プレハブ・モジュール採用やDfD設計の導入判断、サプライヤー選定（輸送距離120km目安）に使える。
🏛政策担当者:建設廃棄物規制や公共調達での工業化建築・循環設計の優遇措置を検討する際の根拠となる。
📄 Abstract（原文）
The construction industry faces increasing pressure to mitigate its global carbon footprint, reduce resource consumption, and minimize landfilled material waste. Offsite construction (OSC) has emerged as an industrialized paradigm capable of restructuring traditional project delivery. This paper presents a critical literature review of 19 peer-reviewed journal articles published between 2020 and 2026. The objective is to synthesize the environmental benefits, assess the circular economy potential, and identify the supply chain and digital challenges of offsite building delivery. Results demonstrate that modular and industrialized building systems achieve substantial waste reductions, reaching up to 83.2% in weight and up to 78.8% on average across analyzed building projects. Furthermore, comparative life cycle assessments (LCAs) indicate greenhouse gas (GHG) reductions of approximately 8% under typical logistics configurations, with transport thresholds identified around 120km. Incorporating circular principles, such as Design for Disassembly (DfD), can further reduce global warming potential by up to 63% compared to linear offsite options. However, digital integration remains fragmented, with limited deployment of automated digital twins or artificial intelligence (AI). Moreover, widespread adoption is hindered by high upfront capital costs, design-stage constraints, and logistics complexities. We conclude that offsite construction represents an effective sustainable delivery pathway when combined with circular design frameworks, optimized localized supply chains, and integrated digital workflows.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://www.eassjournal.org/index.php/engineeringsciences/article/download/8937/5085first seen 2026-11-13 06:00:03
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