In a recent article for The Atlantic's CityLab, contributing writer Eric Jaffe wrote about "The Most Persuasive Evidence Yet that Bike-Share Serves as Public Transit." In the article, he provides detailed evidence that bikeshare services in urban regions substitute other forms of public transit "for short trips in the core, and expands [transit] service on the outskirts." Studies have shown that bikeshare members have decreased the use of their personal single-occupancy vehicles in multiple US cities. Bikeshare systems benefit a city's urban mobility by increasing the region accessible by a point-to-point transit systems. The results of these initial studies are very positive as more and more cities in North America are launching, or planning to launch, their own bikeshare systems.
Here is the opening excerpt from the article:
"Over the past few days, several New York media outlets have reported that Citi Bike, the city's popular but financially struggling bike-share system, will soon get a much-needed influx of cash. The new money would likely go toward improving docking stations and expanding the network to other parts of the city. A spokesman for Mayor Bill de Blasio told the Wall Street Journal that bike-share "has become part of our public transportation system, and there is a lot riding on its success."
Those words come at the same time as a new research study—first referenced here by former D.C. and Chicago transportation chief Gabe Klein—offers the most persuasive evidence yet that bike-share serves as a genuine form of public transportation.
Past work has found that bike-share members decrease their car use considerably: According to one survey, 52 percent did so in Minneapolis, and 41 percent in Washington, D.C. The new, more fine-grained analysis of bike-share use in these cities reveals that its role in the transit system varies based on the character of the host city. In larger cities with dense cores like D.C., bike-share may replace shorter transit trips; in smaller, more dispersed cities like Minneapolis, it may expand the entire public transport network."