Spatio-Temporal Dynamics and Policy Implications of Road Traffic Crashes Involving Bystander Fatalities in Nigeria (2005–2025)

Stationary roadside bystander fatalities, involving non-vehicle occupants residing, trading, or present near roadways without walking or crossing at the time of a crash, represent an under-examined aspect of Nigeria’s road safety crisis. This study examined temporal dynamics, spatial hotspots, and crash typologies associated with stationary bystander fatalities from road traffic crashes (RTCs) in Nigeria (2005-2025). A retrospective longitudinal design used systematically coded secondary crash data from eight verified media sources. Stationary bystander fatality was defined as a non-vehicle occupant present within or adjacent to a roadside settlement, market, or residential cluster who was not actively walking or crossing, excluding active pedestrians. Data were analyzed using quasi-Poisson regression, Getis-Ord Gi* spatial hotspot detection, and typological classification of 40 verified incidents. Forty incidents resulted in a midpoint estimate of 1,166.5 fatalities (range: 1,085-1,248). Temporal analysis revealed a significant annual increase of 4.9% (IRR = 1.049, 95% CI: 1.032-1.067, p < 0.001), with post-2019 marking an escalation phase. Year 2024 recorded the highest fatalities (midpoint: 251.5), confirming episodic clustering. Fuel tanker explosions accounted for 73.0% of deaths, followed by truck-into-market crashes (9.1%) and vehicle incursions into residential areas (17.9%). Heavy-duty vehicle crashes contributed 82% of fatalities. Lagos and Anambra were the most frequent incident zones; Jigawa was a statistical hotspot (Gi* z = 2.598, p < 0.05). Stationary bystander fatalities in Nigeria increased significantly over two decades, driven by fuel tanker explosions and heavy-vehicle incursions into roadside settlements. Recommendations include temporal risk forecasting, corridor-based safety zones, a hazardous materials transport code, setback enforcement, market relocation, and anti-fuel-scooping sensitization.

Bystander Fatalities, Road Traffic Crashes

1. Abubakar, I., Dalglish, S. L., Angell, B., Huda, M., Abimbola, S., & Adebayo, E. F. (2022). The Lancet Nigeria Commission: Investing in health and the future of the nation. The Lancet, 399(10329), 1155–1202. https://doi.org/10.1016/S0140-6736(21)02488-0 [Google Scholar] [Crossref]

2. Ackaah, W., & Adonteng, D. O. (2018). Analysis of road traffic crashes involving commercial vehicles in Ghana. Traffic Injury Prevention, 19(2), 150–156. https://doi.org/10.1080/15389588.2017.1369521 [Google Scholar] [Crossref]

3. Ackaah, W., Nketiah-Amponsah, E., & Afukaar, F. (2020). Spatial and temporal analysis of fatal road traffic crashes in Ghana: A GIS-based approach. Accident Analysis & Prevention, 135, 105384. https://doi.org/10.1016/j.aap.2019.105384 [Google Scholar] [Crossref]

4. AP News. (2024, October 16). Gas tanker explosion kills more than 140 people and injures dozens more in Nigeria. Associated Press. https://apnews.com/article/7af046fdb8016e79d14744666013fbf2 [Google Scholar] [Crossref]

5. AP News. (2025, January 19). Nigerian gasoline tanker explosion death toll rises to 86, with 55 others injured. Associated Press. https://apnews.com/article/09ba2eac742f7802822b7d9db8b1e6cc [Google Scholar] [Crossref]

6. Awoniyi, O., Hart, A., Argote-Aramendiz, K., Voskanyan, A., Sarin, R., Molloy, M. S., & Ciottone, G. R. (2022). Trend analysis on road traffic collision occurrence in Nigeria. Disaster Medicine and Public Health Preparedness, 16(6), 1517–1523. https://doi.org/10.1017/dmp.2021.166 [Google Scholar] [Crossref]

7. International Labour Organization & Organisation for Economic Co-operation and Development (ILO & OECD). (2019). Tackling vulnerability in the informal economy: A report on policy options and indicators. https://www.oecd.org/publications/tackling-vulnerability-in-the-informal-economy_939b7bcd-en.html [Google Scholar] [Crossref]

8. Mitra, S., et al. (2021). Level data sources for tracking the incidence of deaths and injuries: Implications for monitoring SDG 3.6. BMJ Global Health, 6(11), e007296. https://gh.bmj.com/content/6/11/e007296 [Google Scholar] [Crossref]

9. National Emergency Management Agency (NEMA), Enugu State. (2025). Enugu tanker fire update. https://www.nema.gov.ng/enugu-tanker-fire-update/ [Google Scholar] [Crossref]

10. Nigerian Bureau of Statistics. (2023). Road transport data: Q4 2023. Abuja: National Bureau of Statistics. https://www.nigerianstat.gov.ng/elibrary/read/1241462 [Google Scholar] [Crossref]

11. Nketiah-Amponsah, E., Ackaah, W., & Afukaar, F. (2023). Road traffic fatalities and injuries in Sub-Saharan Africa: Review of trends, causes and interventions. Journal of Transport & Health, 31, 101528. https://doi.org/10.1016/j.jth.2023.101528 [Google Scholar] [Crossref]

12. Odusola, A. O., Olaleye, A. P., & Ogunbode, C. A. (2023). Spatial and temporal analysis of road traffic crashes and ambulance responses in Lagos State, Nigeria. BMC Public Health, 23, 2273. https://doi.org/10.1186/s12889-023-16996-8 [Google Scholar] [Crossref]

13. Oluwole, O. C., Adeyemo, O., & Olatunji, A. (2021). Assessing the safety implications of urban highway encroachment in southwestern Nigeria. Cities, 111, 103082. https://doi.org/10.1016/j.cities.2021.103082 [Google Scholar] [Crossref]

14. Onyemaechi, N. O., Ofoma, U. R., Ezechukwu, H. C., & Nwankwo, O. E. (2016). The public health threat of road traffic accidents in Nigeria: A call to action. International Journal of Surgery Open, 5, 1–6. https://doi.org/10.4103/amhsr.amhsr_452_15 [Google Scholar] [Crossref]

15. Oyesiku, K. O., Oduwaye, A., & Olagunju, A. (2023). Urban transport and the challenge of informal economic activities along Nigerian highways. Transport Policy, 133, 90–101. https://doi.org/10.1016/j.tranpol.2023.03.007 [Google Scholar] [Crossref]

16. Pandey, B. (2022). Views of professional stakeholders on readiness for a safe road system: Roadside settlement risk in Nepal. Journal of Global Health, 12(1). https://doi.org/10.7189/jogh.12.01001 [Google Scholar] [Crossref]

17. Profisee. (2023). What is fuzzy matching and how can it clean up my bad data? https://profisee.com/blog/what-is-fuzzy-matching-and-how-can-it-clean-up-my-bad-data/ [Google Scholar] [Crossref]

18. Sun Research Ethics Guidelines. (2020). Guidance on retrospective reviews using secondary data. University of Stellenbosch. https://www.sun.ac.za/english/faculty/healthsciences/rdsd/Documents/Undergraduate%20Research/Publication%20Incentive%20Fund/Guidance%20on%20retrospective%20reviews%20using%20secondary%20data%2020201125.pdf [Google Scholar] [Crossref]

19. The Guardian. (2024, October 16). Explosion kills scores of Nigerians collecting fuel from crashed tanker. The Guardian. https://www.theguardian.com/world/2024/oct/16/scores-killed-in-nigeria-fuel- tanker-explosion [Google Scholar] [Crossref]

20. Tripathy, J. P. (2013). Secondary data analysis: Ethical issues and challenges. Iranian Journal of Public Health, 42(12), 1478–1481. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4441947/ [Google Scholar] [Crossref]

21. Welch, D., Shepherd, D., Dirks, K. N., Reddy, R., Welch, D., Shepherd, D., Dirks, K. N., Reddy, R., & Welch, D. (2023). Health effects of transport noise. Transport Reviews, 43(6), 1190–1210. https://doi.org/10.1080/01441647.2023.2206168 [Google Scholar] [Crossref]

22. WinPure. (2025, March 12). Fuzzy data matching guide for data-driven decision-making. https://winpure.com/fuzzy-matching-guide/ [Google Scholar] [Crossref]

23. World Bank. (2021). Making roads safer: Learning from the World Bank’s experience. https://ieg.worldbankgroup.org/reports/making-roads-safer-learning-world-banks-experience [Google Scholar] [Crossref]

24. World Bank. (2022). Multilateral development banks road safety financing: LMIC experiences 2018–2022. Global Road Safety Facility. https://www.globalroadsafetyfacility.org/sites/default/files/2023-05/MDB%20Road%20Safety%20Financing%20Report-May2023.pdf [Google Scholar] [Crossref]

25. World Health Organization. (2018). Global status report on road safety 2018. Geneva: WHO. https://www.who.int/publications/i/item/9789241565684 [Google Scholar] [Crossref]

26. World Health Organization. (2023). Global status report on road safety 2023. Geneva: WHO. https://www.who.int/teams/social-determinants-of-health/safety-and-mobility/global-status-report-on-road-safety-2023 [Google Scholar] [Crossref]

27. World Health Organization. (2023). Global status report on road safety 2023: Nigeria country profile. Geneva: WHO. https://cdn.who.int/media/docs/default-source/country-profiles/road-safety/road-safety-2023-nga.pdf [Google Scholar] [Crossref]

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