By Jacob Silterra and Monica Gallegos
This is highly interactive, go to the attached URL. The submitted image is just a screenshot.
Size = activity = outgoing + incoming. Color = flux = outgoing – incoming. Red means more people arriving, green means more people leaving. All numbers are per day that the station was open, for the half hour window centered at the time displayed above. For other tech details, see http://www.jacobsilterra.com/hubway-data-challenge/
Additional download: source.zip