The High Toll of Traffic Injuries

Bank, World · 2017 · OpenAlex-citations

DOI: 10.1596/29129

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Summary

This World Bank report, funded by Bloomberg Philanthropies, addresses the significant gap in understanding the macroeconomic and social welfare impacts of road traffic injuries (RTIs) in low- and middle-income countries (LMICs). While RTIs kill 1.25 million people annually and cause 20–50 million serious injuries globally, with 90% of deaths occurring in LMICs, existing economic estimates were imprecise and often extrapolated from high-income settings. The study aims to quantify the economic benefits and aggregate social welfare gains of reducing RTIs to inform policy priorities for transport and health officials. The researchers applied a methodology to five specific LMICs: China, India, the Philippines, Tanzania, and Thailand. The analysis employed two complementary approaches. First, it estimated the impact of RTIs on economic growth using a dataset of 135 countries over a 24-year period (1990–2014), analyzing the relationship between road traffic death rates, disability metrics, and GDP growth. Second, it assessed welfare impacts using the Value of Statistical Life (VSL) and Willingness-to-Pay methods to determine the monetary value society places on avoiding mortality and morbidity, specifically calculating benefits associated with reducing RTIs by 25%, 50%, and 75%. The findings demonstrate that reducing RTIs yields substantial macroeconomic and welfare benefits. Economically, halving road traffic mortality and morbidity and sustaining this reduction over 24 years could generate an additional income flow equivalent to 7.1% of 2014 GDP in Tanzania, 7.2% in the Philippines, 14% in India, 15% in China, and 22.2% in Thailand. In terms of welfare, the study found that society would be willing to pay the equivalent of 6% to 32% of national GDP to avoid RTI consequences over the same period. Specific welfare benefits for a 50% reduction ranged from 5.91% of GDP in the Philippines to 32% in Tanzania. The authors note these are conservative estimates; using VSL values comparable to rich countries could raise these benefits to between 48% and 219% of GDP. The report concludes that RTI prevention is a critical development challenge with high returns on investment, rather than merely a transport issue. Reducing injuries supports universal health coverage and human capital accumulation, which are key drivers of economic growth. The authors argue that RTI interventions, such as speed limits and safer infrastructure, are cost-effective "low hanging fruit." They urge policymakers to adopt sustainable, integrated, and inclusive road safety measures, noting that failing to meet UN Sustainable Development Goals on road safety results in significant unrealized GDP growth and welfare losses.

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• demographic disparities

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• Empirical Findings: crash risk outcomes