This week's Chicago L train crash highlights an area of technology where U.S. transit lags behind.
"TransportBuzz" channels collective anger over train delays, backward-facing seats, and really sneezy passengers.
The arts have tended to ignore the Tube as a source of inspiration, but with the 150th anniversary of the system, we get 12 new books on its relevance.
Researchers are using rider data to better understand how stressed subway crowds flow through the system.
The Foursquare-style Chromaroma program tracks London Tube riders wherever they go