Circular Economy Strategies for Housing Affordability in Rapidly Urbanizing Cities: A Systematic Review
急速に都市化する都市における住宅価格向上のための循環経済戦略：系統的レビュー (AI 翻訳)
B. Moral, E. Erebor, M. Zango, D. Adesina
🤖 gxceed AI 要約
日本語
本系統的レビューは、急速に都市化する都市における住宅価格向上のための循環経済（CE）戦略を検討し、アブジャ（ナイジェリア）に焦点を当てる。615の文献から67の研究を選び、モジュール工法（廃棄物20～40%削減、コスト15～25%削減）や適応的再利用（炭素排出50～80%削減）など8つの介入領域を特定。アフリカ関連研究は7.5%と少なく、デジタルツールの活用と参加型ガバナンスの重要性を指摘。
English
This systematic review examines circular economy (CE) strategies for housing affordability in rapidly urbanizing cities, focusing on Abuja, Nigeria. From 615 publications, 67 studies were selected, identifying eight intervention domains including modular construction (20-40% waste reduction, 15-25% cost reduction) and adaptive reuse (50-80% embodied carbon reduction). Only 7.5% of studies address African contexts, highlighting the need for digital tools and participatory governance.
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
日本では建設廃棄物削減やLCCM住宅など循環経済への関心が高いが、本論文はアフリカの急成長都市に焦点を当てており、日本の政策との直接的な連動は弱い。ただし、モジュラー建築やAdaptive reuseの数値データは、日本の住宅政策や建設業界への示唆となる可能性がある。
In the global GX context
Globally, this paper contributes to the circular economy literature by providing a systematic overview of strategies for affordable housing, with implications for SDGs 11 and 12. The identified barriers and digital tool enablers are relevant for international development agencies and urban planners working in rapidly growing cities of the Global South.
👥 読者別の含意
🔬研究者:Provides a comprehensive mapping of CE strategies for housing, useful for identifying research gaps and future directions.
🏢実務担当者:Offers concrete strategies like modular construction and adaptive reuse that can reduce costs and waste in housing projects.
🏛政策担当者:Highlights policy fragmentation and need for integrated frameworks to scale circular housing, relevant for urban development planning.
📄 Abstract（原文）
This systematic literature review examines circular economy (CE) strategies for enhancing housing affordability in rapidly urbanizing cities, with contextual implications for Sub-Saharan Africa and Abuja, Nigeria. Employing a two-stage methodology, bibliometric mapping followed by in-depth thematic synthesis, this study analyzed 615 unique publications from the Scopus database (2020–2025) following PRISMA guidelines. From this bibliometric dataset, 67 studies that meet strict relevance criteria were selected for qualitative synthesis. The thematic analysis identifies eight key intervention domains: modular construction (reducing waste by 20–40% and costs by 15–25%), adaptive reuse (lowering embodied carbon by 50–80%), waste management and recycling, life cycle assessment approaches, social and affordability considerations, policy and barrier analysis, digital technologies (Building Information Modelling and material passports), and material circularity frameworks. Findings reveal persistent geographic disparities, with 76% of studies originating from the Global North (Europe: 46% and North America: 9%), while only 7.5% address African contexts. Key barriers to CE adoption include fragmented policy frameworks, limited technical capacity, supply chain constraints, and sociocultural preferences for conventional construction. The review highlights the critical enabling role of digital tools and participatory governance in scaling circular housing models. For rapidly urbanizing contexts like Abuja, this study proposes a roadmap integrating CE principles with informal settlement upgrading and climate resilience, contributing to SDG 11 (Sustainable Cities) and Sustainable Development Goals 12 (Responsible Consumption).
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.5772/geet20250085first seen 2026-06-29 07:13:20
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