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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. National Emergency Management Agency (Nigeria) - Wikipedia

    en.wikipedia.org/wiki/National_Emergency...

    The National Emergency Management Agency is an agency in Nigeria. [1] The agency focuses on disaster management in all parts of the country. [1] The agency was established in 1999, [2] and functions to formulate policies relating to disaster management in Nigeria. Directors general included: Muhammad Sani-Sidi; Abbas Idriss [3] Zubaida Umar [4]

  5. Push-button - Wikipedia

    en.wikipedia.org/wiki/Push-button

    The "push-button" has been utilized in calculators, push-button telephones, kitchen appliances, and various other mechanical and electronic devices, home and commercial. In industrial and commercial applications, push buttons can be connected together by a mechanical linkage so that the act of pushing one button causes the other button to be ...

  6. Category:Emergency services in Nigeria - Wikipedia

    en.wikipedia.org/wiki/Category:Emergency...

    National Emergency Management Agency (Nigeria) Nigeria Security and Civil Defence Corps; S. State Security Service (Nigeria)

  7. Push switch - Wikipedia

    en.wikipedia.org/wiki/Push_switch

    A push switch (button) is a momentary or non-latching switch which causes a temporary change in the state of an electrical circuit only while the switch is physically actuated. An automatic mechanism (i.e. a spring ) returns the switch to its default position immediately afterwards, restoring the initial circuit condition.

  8. Crash bar - Wikipedia

    en.wikipedia.org/wiki/Crash_bar

    Crash bar doors in a school, with upper vertical rod latches. A crash bar (also known as a panic exit device, panic bar, or bump bar) [1] [2] is a type of door opening mechanism which allows users to open a door by pushing a bar.

  9. Placebo button - Wikipedia

    en.wikipedia.org/wiki/Placebo_button

    A walk button in Bensonhurst, Brooklyn. Many walk buttons at pedestrian crossings were once functional in New York City, but now serve as placebo buttons. [7]In the United Kingdom and Hong Kong, pedestrian push-buttons on crossings using the Split Cycle Offset Optimisation Technique may or may not have any real effect on crossing timings, depending on their location and the time of day, and ...