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Observational Study
. 2021 Mar 9;325(10):1003-1006.
doi: 10.1001/jama.2020.25770.

Association Between Changes in Social Distancing Policies in Ohio and Traffic Volume and Injuries, January Through July 2020

Li Li  1 , Lucas M Neuroth  2 , Edward Valachovic  3 , David C Schwebel  4 , Motao Zhu  2
Affiliations
Observational Study

Association Between Changes in Social Distancing Policies in Ohio and Traffic Volume and Injuries, January Through July 2020

Li Li et al. JAMA. .

Abstract

This study compares traffic volume and motor vehicle crash injuries before, during, and after state-of-emergency and stay-at-home orders in the state of Ohio from January to July 2020 vs the same period in 2019.

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Conflict of interest statement

Conflict of Interest Disclosures: Dr Schwebel reported receipt of grants from the National Institutes of Health, Centers for Disease Control and Prevention (CDC), National Science Foundation, and US Department of Transportation (through the National Safety Council) and personal fees (consulting) from Procter & Gamble, Carney Badley Spellman, the University of Turku, Colorado State University, North Carolina A&T State University, Cengage Hayward, the CDC, the European Science Foundation, Marshfield Clinics, Cineca, and The Ohio State University. No additional disclosures were reported.

Figures

Figure.
Figure.. Daily Counts of Motor Vehicle Crash–Related Outcomes and Traffic Volume
The vertical dotted lines demark the study periods (P1-P4) in 2020. Period 1 was January 1 through March 8; period 2, March 9 (state-of-emergency declaration) through March 22; period 3, March 23 (stay-at-home order) through May 11; and period 4, May 12 (retail reopening) through July 31. The x-axis is in reference to 2020 dates, accounting for the leap-year day. MVC indicates motor vehicle crash.
See this image and copyright information in PMC

References

    1. Mervosh S, Lu D, Swales V. See which states and cities have told residents to stay at home. New York Times. Updated April 20, 2020. Accessed November 20, 2020. https://www.nytimes.com/interactive/2020/us/coronavirus-stay-at-home-ord...
    1. Office of Highway Policy Information, US Federal Highway Administration . Traffic volume trends: April 2020. Accessed November 20, 2020. https://www.fhwa.dot.gov/policyinformation/travel_monitoring/20aprtvt/20...
    1. Ohio Department of Public Safety . Crash Statistics System. Accessed September 1, 2020. https://ohtrafficdata.dps.ohio.gov/crashstatistics/home
    1. Ohio Department of Transportation . Traffic Monitoring Management System. Accessed September 1, 2020. https://odot.ms2soft.com/tcds/tsearch.asp?loc=odot
    1. Thomas FD, Berning A, Darrah J, et al. . Drug and Alcohol Prevalence in Seriously and Fatally Injured Road Users Before and During the COVID-19 Public Health Emergency. National Highway Traffic Safety Administration Report DOT HS 813 018. Published October 2020. Accessed November 20, 2020. https://rosap.ntl.bts.gov/view/dot/50941

Publication types