HealthDay News — Ride-sharing services may reduce the rate of motor vehicle crashes, particularly alcohol-involved crashes, in some cities, according to a study published online in the American Journal of Epidemiology.
Christopher N. Morrison, PhD, from the University of Pennsylvania in Philadelphia, and colleagues conducted interrupted time-series analyses using weekly counts of injury crashes and the proportion that were alcohol-involved in 4 US cities (Las Vegas; Reno, Nevada; Portland, Oregon; and San Antonio). Cities were selected where Uber launched, ceased, and then resumed operations between 2013 and 2016, based on the assumption that resumption after a temporary break would produce a more substantial change in ridership than an initial launch.
The researchers found that the results partially supported the hypothesis that Uber’s resumption would be associated with fewer alcohol-involved crashes. After Uber’s resumption in Portland, there was a 61.8% reduction in the alcohol-involved crash rate, although there was no concomitant change in all injury crashes.
“Relationships between ride-sharing and motor vehicle crashes differ between cities over time and may depend on specific local characteristics,” conclude the authors.
Morrison CN, Jacoby SF, Dong B, Delgado MK, Wiebe DJ. Ridesharing and motor vehicle crashes in 4 US cities: an interrupted time-series analysis [published online June 14, 2017]. Am J Epidemiol. doi: 10.1093/aje/kwx233