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All Journal Journal of Sustainable Infrastructure Advances in Civil Engineering and Sustainable Architecture
Hyginus Unegbu
Department of Mechanical Engineering Ahmadu Bello University Nigeria
Civil Engineering, Building, Construction & Architecture Engineering Environmental Science

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An Analysis of the Challenges to Achieving Sustainable Practices in Nigeria's Construction Sector Hyginus Unegbu; Danjuma YAWAS; Bashar Dan-asabe; Abdulmumin Akoredeley Alabi
Advances in Civil Engineering and Sustainable Architecture Vol. 7 No. 1 (2025): Advances in Civil Engineering and Sustainable Architecture
Publisher : Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/acesa.v7i1.14464

Abstract

This study investigates the key barriers to the adoption of sustainable construction practices in Nigeria, focusing on regulatory, organizational, social, cultural, and technological factors. Utilizing a mixed-methods approach, the research combines qualitative case studies and interviews with quantitative survey data to identify these challenges. The findings highlight the multifaceted and interconnected nature of these barriers, with regulatory challenges—such as outdated building codes, insufficient legislative support, and bureaucratic inefficiencies—emerging as the most significant. Social and cultural resistance to change, coupled with limited public awareness of sustainable construction benefits, further complicate adoption. Technological challenges, including high costs of green materials and a shortage of skilled professionals, are also key obstacles. The study suggests that Nigeria can draw valuable lessons from other developing countries, such as South Africa, India, and Indonesia, where similar challenges have been addressed through proactive policies and innovative practices. Recommendations for overcoming these barriers include modernizing building codes, strengthening leadership in sustainability within the construction sector, and launching comprehensive public education campaigns to shift societal attitudes. The study further advocates for increased investment in green technologies and the development of local supply chains to reduce costs and enhance the accessibility of sustainable construction materials. By adopting these strategies, Nigeria can promote sustainable building practices and contribute to global knowledge on overcoming barriers to sustainability in developing economies.
Risk Management in Circular Economy Projects: Engineering Management Challenges and Solutions in Nigeria Hyginus Unegbu; Danjuma S. Yawas
Journal of Sustainable Infrastructure Vol. 5 No. 1 (2026): Innovations in Sustainability, Circular Economy, and Environmental Engineering
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v5i1.45

Abstract

Circular economy (CE) implementation offers promising pathways for sustainable development, resource efficiency, and waste minimization. However, the transition from linear to circular systems presents considerable engineering management challenges, especially in developing economies such as Nigeria, where socio-institutional complexity, regulatory uncertainty, and infrastructural limitations persist. This study critically examines the risk landscape associated with engineering-managed CE projects in Nigeria, with the objective of identifying, quantifying, and prioritizing key risk factors that undermine project delivery and long-term sustainability. A sequential exploratory mixed-methods design was adopted, combining qualitative insights from expert interviews with advanced quantitative modeling. Risk data were analyzed using Monte Carlo simulation to estimate probabilistic impact, Principal Component Analysis (PCA) to uncover latent risk structures, and Fuzzy Analytic Hierarchy Process (FAHP) to prioritize mitigation strategies under uncertainty. Five major risk dimensions were evaluated: technical failure, regulatory delay, stakeholder conflict, financial overrun, and supply chain disruption. Findings revealed that stakeholder conflict and regulatory delay are the most severe and probable risks, accounting for the highest variance in risk exposure. Technical risks, while relevant, were found to be less critical in shaping project success than governance-related variables. The analysis underscores the need for a shift in engineering risk management from traditional design-centric models to integrative frameworks that incorporate policy, finance, and stakeholder dynamics. This research offers a replicable methodological approach for CE project risk analysis in developing countries. It also provides evidence-based guidance for engineering managers, policymakers, and investors seeking to enhance the resilience and performance of CE infrastructure.
Co-Authors Abdulmumin Akoredeley Alabi Bashar Dan-asabe Danjuma S. Yawas Danjuma YAWAS