Via WNYC DataNews: “At Penn Station, the Early Bird Catches the Citi Bike”:
The WNYC Data News Team analyzed the average number of bikes in various docking stations around the city by time of day. At Penn Station there is an especially fast depletion of bikes at the several docks surrounding the transit hub that serves commuters from New Jersey, Long Island as well as 6 subway lines.
The several docks closest to Penn Station have similar usage patterns. They are also large docks with roughly 50 bikes in each. Starting around 6:30 a.m. the number of bikes drops dramatically until it hits empty, usually before 8:30 a.m., meaning, for the most part, bikes are available for commuters trying to get to work in midtown before 9:00 a.m. not not after.
Docks close to the Port Authority Bus Terminal and Grand Central Terminal did not seem to have similar and stark usage patterns as those around Penn Station.
Citi Bike is growing in popularity serving around 30,000 rides a day.
Interactive version of the chart: