From the passenger conduct to the advertisements on the train, see how things have changed since the subway opened in 1904, ...

Londoners say more graffiti has appeared on the Central line Tube carriages in recent months. Passengers on the London ...

A few hundred feet away, a signal light flashes red and a train that had been rumbling ... About 85 percent of New York City’s subway system still operates with this analog signal system.

The MTA is beginning the process of replacing its older work trains with newer and more environmentally friendly ones.