| Radio remote speed control for railway safety This unit’s receiver is tied to the speed control electronics on the locomotive of a freight train. In case the train’s engineer falls ill, or the train is taken over by a terrorist, the remote control unit allow someone standing near the tracks when the train goes by to override the operating controls on the train. |
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| System of control command Train protection and operations control system for fully automatic, driverless operation Notably integrated in:
Metro Line in New York City, USA
Metro Line 9 in Barcelona, Spain |
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