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  2. Manual fire alarm activation - Wikipedia

    en.wikipedia.org/wiki/Manual_fire_alarm_activation

    When the station was pulled, the security officers in the building would look up 5-3-1 in a master list of codes. After finding the location of the pull, they should check to see if there is a real fire. If there was, they would evacuate the building and call the fire department. Antique Holtzer-Cabot coded pull station

  3. Height restriction laws - Wikipedia

    en.wikipedia.org/wiki/Height_restriction_laws

    The height limit was passed by the United States Congress in 1889 as the Height of Buildings Act of 1899 and later amended by the Height of Buildings Act of 1910. [ 28 ] [ 29 ] Boston , Massachusetts: Due to the city's proximity to Logan International Airport , building height is restricted to around 800 ft (240 m).

  4. Fire alarm notification appliance - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_notification...

    A fire alarm notification appliance is an active fire protection component of a fire alarm system. A notification appliance may use audible, visible, or other stimuli to alert the occupants of a fire or other emergency condition requiring action.

  5. Skyscraper design and construction - Wikipedia

    en.wikipedia.org/wiki/Skyscraper_design_and...

    A taller building requires more elevators to service the additional floors, but the elevator shafts consume valuable floor space. If the service core (which contains the elevator shafts) becomes too big, it can reduce the profitability of the building. Architects must therefore balance the value gained by adding height against the value lost to ...

  6. Destination dispatch - Wikipedia

    en.wikipedia.org/wiki/Destination_dispatch

    A destination dispatch elevator, here using a Compass system from Otis. Destination dispatch is an optimization technique used for multi-elevator installations, in which groups of passengers heading to the same destinations use the same elevators, thereby reducing waiting and travel times. This contrasts with the traditional approach, in which ...

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  9. Height of Buildings Act of 1899 - Wikipedia

    en.wikipedia.org/wiki/Height_of_Buildings_Act_of...

    An urban myth holds that the buildings in Washington D.C. are currently, or were at one time, restricted to the height of the U.S. Capitol building. [7] In fact, the 1899 law set the maximum height of any building to 130 feet (39.6 m), [8] the height limit that firefighting equipment could effectively reach at the time, [2] and not the 289 feet (88 m) of the Capitol building.