Urban infrastructure maintenance is critical for ensuring the long-term sustainability, safety, and performance of cities. However, many developing countries continue to rely on traditional maintenance approaches that are reactive and inefficient. Rapid urbanisation, population growth, and climate change have placed significant pressure on infrastructure systems, highlighting the need for more sustainable and proactive maintenance strategies. This study develops a framework for sustainable urban infrastructure maintenance by integrating environmental, economic, resilience, and technological considerations. A qualitative research approach was adopted through a systematic review of secondary data from peer-reviewed literature, policy documents, and infrastructure management studies. Key themes relating to sustainable infrastructure maintenance were identified and synthesised into a decision-support framework. The Analytic Hierarchy Process (AHP) was employed as a multi-criteria decision-making tool to evaluate and prioritise maintenance strategies. The analysis considered four main criteria: environmental impact, economic efficiency, resilience and adaptability, and technology integration. Results from the AHP analysis indicate that environmental impact is the most influential criterion, while climate-resilient infrastructure emerged as the highest-ranked maintenance strategy. The study demonstrates how multi-criteria decision-making techniques can effectively support the development of sustainable infrastructure maintenance frameworks. The proposed framework provides practical guidance for policymakers, engineers, and urban planners seeking to improve infrastructure resilience and sustainability in rapidly urbanising regions.
O. D. Adetola, O. A. Awodele, M. Khahledi et al.· 2026: Transforming Construct...· 0 citations
Lean Construction (LC) has evolved from an emerging adaptation of production principles into a mature academic domain, yet a comprehensive assessment of its global structure and development remains needed. This study presents a rigorous bibliometric and scoping review of LC research using a sample of 484 highly refined, peer-reviewed documents retrieved from the Scopus database up to 2025. Following the PRISMA-ScR guidelines and utilizing VOSviewer, the co-occurrence networks of keywords, countries, and co-authorships were systematically analyzed. The results reveal a structurally centralized research landscape historically led by the United States and the United Kingdom, though accompanied by an increasing globalization driven by emerging clusters in Asia and South America. Keyword analysis indicates growing research attention to Building Information Modeling (BIM), information management, agile approaches, and environmental sustainability within the analyzed Lean Construction literature alongside traditional operational and planning concerns. However, the literature exhibits persistent fragmentation, with over 70% of identified journals publishing two or fewer articles on the subject within specialized thematic niches. This study concludes that opportunities exist to further explore the relationship between Lean Construction and emerging digital technologies while strengthening cross-regional and interdisciplinary collaborations. These efforts may contribute to a more cohesive and globally representative understanding of the discipline and its role in improving efficiency and sustainability within the built environment.
Yesica Pino, N. Olatunde, I. Awodele et al.· Buildings· 0 citations
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