Municipal infrastructure in Nigeria is crucial for urban development but often faces challenges related to reliability and maintenance. A mixed-method approach was employed, including surveys, interviews, and data analysis from randomly selected municipalities across Nigeria. Statistical models were used for reliability assessment. The randomized field trial revealed that the proportion of road assets with critical failures during peak traffic hours was 25%, highlighting the need for preventive maintenance strategies. This study provides evidence on the reliability of municipal infrastructure systems in Nigeria, emphasising the importance of regular inspections and timely repairs to enhance service quality. Immediate implementation of preventive maintenance programmes is recommended to reduce critical failures and improve overall system performance. Infrastructure Reliability Municipal Systems Randomized Field Trial The maintenance outcome was modelled as Y₈ₓ=₀+₁X₈ₓ+uᵢ+₈ₓ, with robustness checked using heteroskedasticity-consistent errors.
Emefehia et al. (Mon,) studied this question.