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Who's Choosing Bike Share Over the Bus?

New research looks at the effect of Citi Bike docks appearing along MTA routes.
relates to Who's Choosing Bike Share Over the Bus?
Richard Drew/AP

A new before-and-after study of bike share in New York City shows that thousands of bus trips are now likely being made by bike instead.

For every thousand Citi Bike docks added along Brooklyn and Manhattan bus routes, bus trips dropped by 2.42 percent, according to a new journal article from Kayleigh Campbell, who recently received a Ph.D. from Columbia University, and secondary author Candace Brakewood, an assistant professor of civil engineering at the City College of New York. (I’m acquainted with Brakewood; we served together on TransportationCamp NYC’s volunteer committee.) Their peer-reviewed research, which studies trips between May 2012 and July 2014, controls for a wide variety of factors in an attempt to isolate the impact of bike share on bus ridership.