# Transit Flow

**Published by:** [Brandon Donnelly](https://brandondonnelly.com/)
**Published on:** 2017-03-05
**Categories:** bart, bay-area, bay-area-rapid-transit-network, network, oakland, ray-luong, san-francisco, san-francisco-bay-area, trains, transbay-tube, transit, uncategorized, visualization
**URL:** https://brandondonnelly.com/transit-flow

## Content

This is a map of the Bay Area Rapid Transit network:And this is an elegant visualization by Ray Luong of ridership levels over the course of one day: February 4, 2016. If you can’t see the embedded video below, click here. [youtube https://www.youtube.com/watch?v=owGgbAS7Wq8?rel=0&w=560&h=315] Note how the lines speed up as they go through the Transbay Tube connecting San Francisco and Oakland. That’s actually what happens. Within the 10 km-long tube, the trains reach ~130 km/h, which is more than twice as fast as the average speed throughout the rest of the network.

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