Articles which detail the problem:
Fried, Ben. ”Will Citi Bike Riders Get a More Convenient Network for
Their Higher Fares?” StreetsBlogNYC. N.p., 11 Mar. 2016. Ib. 25
Nov. 2016.
<http://www.streetsblog.org/2016/03/11/will-citi-bike-riders-get-a-more-convenient-network-for-their-higher-fares/>.
Tangel, Andrew, Austen Hufford, and Martin Burch. ”Citi Bike’s Demand
Challenge.” WSJ Visuals. The Wall Street Journal, 15 Sept. 2016.
Ib. 24 Nov. 2016.
<http://www.wsj.com/graphics/citi-bike-analysis-2016/>.