Halving global road traffic deaths through targeted mitigation practices by 2050.

Zou S; Lv F; Qian Y; Han C; Zhu J · 2026 · PubMed Central

DOI: 10.1038/s41598-026-42076-z

archive: archived pipeline: cataloged verified

Get this paper ↗ (DOI — opens at the source; we link to it, we don't host it)

Summary

This study addresses the persistent global health challenge of road traffic deaths (RTD), which remain a leading cause of mortality, particularly for individuals aged 5 to 29. Motivated by the United Nations’ Sustainable Development Goal to halve road traffic fatalities by 2030 and the disproportionate burden borne by low- and middle-income countries (LMICs), the research aims to identify key influencing factors and project the impact of targeted mitigation strategies through 2050. The authors seek to bridge gaps in existing literature, which often focuses on high-income settings or isolated factors, by providing an integrated analysis of economic, social, and environmental determinants across diverse socioeconomic contexts. The researchers analyzed panel data from over 190 countries spanning the period from 2000 to 2021. They employed fixed-effects regression and structural equation modeling (SEM) to quantify the direct and indirect effects of various determinants on RTD rates. To assess future trends, the study projected RTD under multiple Shared Socioeconomic Pathway (SSP) scenarios, contrasting baseline projections with scenarios incorporating targeted mitigation practices. These interventions included improvements in education, healthcare infrastructure, legislation (such as speed limits and blood alcohol concentration limits), and individual safety behaviors like seat belt usage. The analysis revealed that global RTD rose from 1.16 million in 2000 to a peak of 1.28 million in 2012, then declined to 1.17 million by 2021. Africa and low-income countries exhibited the highest RTD rates, with low-income nations experiencing rates 2.5 times higher than high-income countries. GDP per capita emerged as the most influential factor, showing a significant negative relationship with RTD rates, partly mediated by increased school enrollment and urbanization. School enrollment exerted the strongest direct influence on reducing RTD, linked to improved safety awareness and seat belt usage. Environmental factors, specifically PM2.5 concentrations, were positively associated with RTD, likely due to reduced visibility and impaired cognitive performance. Projections indicate that without intervention, global RTD could rise to between 1.27 and 1.62 million by 2050 due to population growth. However, implementing targeted mitigation practices could halve global RTD from 1.43 million to 0.74 million by 2050 under the SSP2 scenario. Stricter speed limits, educational improvements, and universal seat belt compliance were identified as the most effective interventions, yielding reductions of 15.8%, 14.8%, and 11.0%, respectively. The findings underscore the critical importance of integrated, evidence-based mitigation strategies, particularly in resource-constrained settings. While high-income countries have achieved significant reductions, LMICs, especially in Africa and Southeast Asia, face substantial barriers due to economic limitations and infrastructure gaps. The study concludes that prioritizing high-impact, low-barrier interventions such as speed limit enforcement and education expansion is essential for maximizing immediate reductions in RTD. These results provide a robust evidence base for operationalizing the UN Road Safety Action Plan and highlight road safety as a fundamental component of global sustainability and public health efforts.

Provenance

The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed.

Summary generated by qwen3.6-27b-prismaquant on 2026-06-26; verification: verified.

Topics

Ranked by relevance to this paper. Hover a topic for its definition.

• comparative international
• fatality injury trends