Ins and outs
A snapshot at 10 a.m. of which stations accumulate bikes (in green), and which run a deficit. Moving the slider online shows trends, like riders flocking to MIT mid-morning and to the Back Bay at noon. The designers noted quirks: One person rides downhill from Somerville City Hall every morning, but doesn’t pedal back up.
(By Kim Ducharme, Kenn Knowles, Zia Sobhani, and Verena Tiefenbeck.)