Automatic Train Stop
From Wikipedia, the free encyclopedia
An automatic train stop is a system on a train that will automatically stop a train if certain situations happened (unresponsive train operator, earthquake, disconnected rail, train running over a stop signal, etc) to prevent accidents from happening.
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[edit] Usage Around the World
[edit] USA
This system is required equipment on U.S. railroads for trains that travel faster than 79 miles per hour.
[edit] Japan
Many Trains in Japan are also equipped with this system
[edit] South Korea
Some Korail and subway lines are equipped with this system.