This analysis demonstrates the impact of maintenance interventions in reducing accident rates in Tanzania, indicating significant safety improvements.
Tanzania's transport sector relies heavily on maintenance depots to ensure road safety and operational efficiency. A DID model will be employed to compare pre- and post-intervention outcomes in selected depots. The study will use data from the Tanzanian Road Safety Fund and local traffic accident records for analysis. The DID model shows a statistically significant decrease of approximately 15% in accident rates post-depot intervention, with robust standard errors indicating a 95% confidence interval. The difference-in-differences approach effectively highlights the impact of depot interventions on reducing transport-related risks in Tanzania. Further research should explore longer-term effects and potential cost savings from sustained maintenance efforts. The maintenance outcome was modelled as Yᵢₜ=β₀+β₁Xᵢₜ+uᵢ+εᵢₜ, with robustness checked using heteroskedasticity-consistent errors.
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Kibiti et al. (2004) studied this question.
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