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  2. Kill switch - Wikipedia

    en.wikipedia.org/wiki/Kill_switch

    An emergency switch in Japan. On railways, [1] an emergency stop is a full application of the brakes in order to bring a train to a stop as quickly as possible. [2] This occurs either by a manual emergency stop activation, such as a button being pushed on the train to start the emergency stop, or on some trains automatically, when the train has passed a red signal or the driver has failed to ...

  3. Train Protection & Warning System - Wikipedia

    en.wikipedia.org/wiki/Train_Protection_&_Warning...

    The standard type consists of two circular indicator lamps and a square push button. The push switch marked "Train Stop Override" is used to pass a signal at danger with authority. It ignores the TPWS TSS loops for approximately 20 seconds (generally for passenger trains) or 60 seconds (generally for slower accelerating freight trains) or until ...

  4. HAWK beacon - Wikipedia

    en.wikipedia.org/wiki/HAWK_beacon

    [1]: 523 However, at a HAWK beacon, an alternating flashing red aspect instructs drivers to stop and proceed when clear, and is not supposed to be treated as stop and stay by drivers. Emergency-vehicle hybrid beacons, for emergency vehicle facilities (i.e. fire stations), use the same signal head design, and uses an alternating flashing red ...

  5. Dead man's switch - Wikipedia

    en.wikipedia.org/wiki/Dead_man's_switch

    Interest in dead man's controls increased with the introduction of electric trams (streetcars in North America) and especially electrified rapid transit trains. The first widespread use came with the introduction of the mass-produced Birney One-Man Safety (tram) Car, though dead-man equipment was fairly rare on US streetcars until the successful PCC streetcar, which had a left-foot-operated ...

  6. Push-button - Wikipedia

    en.wikipedia.org/wiki/Push-button

    These pushbuttons are called emergency stop buttons and for increased safety are mandated by the electrical code in many jurisdictions. This large mushroom shape can also be found in buttons for use with operators who need to wear gloves for their work and could not actuate a regular flush-mounted push button.

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