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Mandated societal lockdown and road traffic accidents
Adnan I Qureshi1, Wei Huang1, Suleman Khan1
1Zeenat Qureshi Stroke Institute and Department of Neurology, University of Missouri, Columbia, MO, USA.
Accident; Analysis and Prevention
|September 10, 2020
Summary
Mandated lockdowns for coronavirus disease 2019 (COVID-19) significantly reduced minor road traffic accidents but did not impact severe or fatal ones. Accident rates for non-serious injuries increased after lockdowns ended.
Area of Science:
- Public Health
- Epidemiology
- Traffic Safety
Background:
- The impact of coronavirus disease 2019 (COVID-19) societal lockdowns on road traffic accidents remains unclear.
- Analysis of traffic accident data is crucial for understanding the consequences of public health interventions.
Purpose of the Study:
- To investigate the effect of mandated societal lockdowns on road traffic accidents.
- To analyze changes in accident severity and frequency during and after lockdown periods.
Main Methods:
- Utilized Statewide Traffic Accident Records System data for Missouri from January 1 to May 15, 2020.
- Analyzed 2292 road traffic accident records, defining lockdown from March 23 to May 3, 2020.
- Employed time series analysis to assess accident trends before, during, and after lockdown.
Main Results:
- A significant decrease in minor or non-injurious road traffic accidents was observed post-lockdown (mean 14.5 vs. 10.8, p < 0.0001).
- No significant change was found in serious or fatal road traffic accidents (mean 3.4 vs. 3.7, p = 0.42).
- Time series analysis confirmed a reduction in minor injury accidents during lockdown (p=0.0028) and an increase post-lockdown (p=0.04).
Conclusions:
- Societal lockdown policies effectively reduced non-serious road traffic accidents.
- Lockdowns did not significantly affect the incidence of serious or fatal road traffic accidents.
- Post-lockdown periods saw a rise in non-serious road traffic accidents, indicating a return to pre-lockdown patterns.
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