1991 Union Square derailment
Videos
On August 28, 1991, a 4 Lexington Avenue Express train on the New York City Subway's IRT Lexington Avenue Line derailed as it was about to enter 14th Street–Union Square station, killing five people.
The damaged R62 car at the site of the accident
Train stop
Videos
Part of a railway signalling system, a train stop, trip stop or tripcock is a train protection device that automatically stops a train if it attempts to pass a signal when the signal aspect and operat
1991 Union Square derailment
…finally led to disaster, as the train heading southbound with approximately 216 passengers, going at nearly 50 miles per hour (80 km/h), too fast for a tripcock to stop the train in time, derailed at the pocket track north of the 14th Street–Union Square station. Five passengers died, mostly in the second car…
A signal with associated trip arm in the raised position (circled)
Train-mounted trip cock, located on the leading bogie of a Siemens EMU
Train stop of Berlin S-Bahn