Motor Vehicle Crashes Involving a Bicycle Before and After Introduction of a Bike Share Program in Philadelphia, Pennsylvania, 2010–2018

Bibliographic Data

ID11037740
AuthorsGhassan B Hamra (0000-0002-6921-5742, Ghassan B. Hamra is with the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD. Leah H. Schinasi and D. Alex Quistberg are with the Department of Environmental and Occupational Health, Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, PA.), Leah H Schinasi (0000-0001-8930-9896, Ghassan B. Hamra is with the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD. Leah H. Schinasi and D. Alex Quistberg are with the Department of Environmental and Occupational Health, Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, PA.), D Alex Quistberg (0000-0001-9730-2686, Ghassan B. Hamra is with the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD. Leah H. Schinasi and D. Alex Quistberg are with the Department of Environmental and Occupational Health, Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, PA.)
Year2020
Volume110
Issue6
Pages863-867
Publication date2020-06-01
Open AccessNo
TypeARTICLE
VenueAmerican Journal of Public Health (JOURNAL)
Journal identifiersISSN: 0090-0036 • E-ISSN: 1541-0048
PublisherAmerican Public Health Association (PUBLISHER • US)
DOI10.2105/ajph.2020.305613
PMID32298172
OpenAlexW3017311481
LanguageEN
Citations received1
References cited30

Objectives. To quantify the impact of a citywide bicycle share program on rates of motor vehicle collisions involving a bicycle. Methods. We conducted an interrupted time series analysis, using crash records from the Pennsylvania Department of Transportation for Philadelphia County from 2010 through 2018. We also calculated summary statistics to illustrate annual and monthly trends in rates of motor vehicle crashes involving a bicycle. Results. The baseline rate of bike events was 106% greater (95% confidence interval [CI] = 1.25, 3.38) at the time bicycle share was implemented compared with January 2010. Before bicycle share implementation, the rate of bicycle events decreased 1% (95% CI = 0.95, 1.03) annually. After the bicycle share program started, the rate of bicycle events decreased 13% (95% CI = 0.82, 0.94) annually. Conclusions. In the long term, programs that increase the number of bicycles on the road, such as bike share, may reduce rates of motor vehicle crashes involving a bicycle

Confidence interval · Crash · Environmental health · Injury prevention · Motor vehicle crash · Occupational safety and health · Poison control · Suicide prevention · Transport engineering · Computer Science · Engineering · Human Factors and Ergonomics · Injury Epidemiology and Prevention · Medicine · Traffic and Road Safety · Urban Transport and Accessibility

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