life of citibike08/27/2016
a day in the life of citibike is an urban data visualization, the most ambitious such project I ever attempted, that lets you scrub through a day of Citi Bike trips one day in the summer of 2016. Select which stations you're interested in, then choose to track either bike trips or station traffic over the course of the day. Then click "Go" to be treated to a few minutes-long animation of bike traffic over the course of the day.
The bicycle pathing dataset powering the application is served on MongoDB, using an mLab cloud database instance. mLab was acquired by MongoDB, and the data is now hosted on MongoDB Atlas. The dataset was generated using the Google Directions API for routing.
The making of Life of Citibike is a detailed technical deep dive into how it works.