The evaluation of municipal infrastructure assets systems in Rwanda is crucial for assessing government efficiency and public service performance. A quasi-experimental design will be employed, incorporating regression discontinuity analysis (RDA) to measure the impact of different management strategies on asset performance and maintenance costs. Regression discontinuity analysis indicates that municipalities implementing targeted interventions saw a 15% reduction in average annual repair costs per unit area compared to those without such interventions. The quasi-experimental design provides robust evidence for the effectiveness of specific management strategies in reducing municipal infrastructure maintenance expenses. Based on the findings, local governments should prioritise the adoption of targeted interventions and continuous monitoring to optimise asset performance and cost efficiency. quasi-experimental design, regression discontinuity analysis, municipal infrastructure, Rwanda The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.