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  2. Public address system - Wikipedia

    en.wikipedia.org/wiki/Public_address_system

    Small PA systems may extend to an entire building, such as a restaurant, store, elementary school or office building. A sound source such as a compact disc player or radio may be connected to a PA system so that music can be played through the system. Smaller, battery-powered 12 volt systems may be installed in vehicles such as tour buses or ...

  3. Smokeproof enclosure - Wikipedia

    en.wikipedia.org/wiki/Smokeproof_enclosure

    The Life Safety Code states that such stairwells be "approved systems with a design pressure difference across the barrier of not less than 0.05 in. water column (12.5 Pa) in sprinkled buildings and 0.10 in. water column (25 Pa) in non-sprinkled buildings".

  4. Pennsylvania State Hospitals - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_State_Hospitals

    The Pennsylvania State Hospital System is a network of psychiatric hospitals operated by the Commonwealth of Pennsylvania. At its peak in the late 1940s the system operated more than twenty hospitals and served over 43,000 patients. As of 2011 fewer than nine sites remain in use, and many of those serve far fewer patients than they once did.

  5. Staircase - Wikipedia

    en.wikipedia.org/wiki/Staircase

    Staircase. A stairwell or stair room is a room in a building where a stair is located, and is used to connect walkways between floors so that one can move in height. [1] Collectively, a set of stairs and a stairwell is referred to as a staircase or stairway. In buildings with several housing units, a stairway can be a necessary common area for ...

  6. Hospital emergency codes - Wikipedia

    en.wikipedia.org/wiki/Hospital_emergency_codes

    Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies. The use of codes is intended to convey essential information quickly and with minimal misunderstanding to staff while preventing stress and panic among visitors to the hospital.

  7. Interstitial space (architecture) - Wikipedia

    en.wikipedia.org/wiki/Interstitial_space...

    Hypothetical interstitial space design for a medical facility. An interstitial space is an intermediate space located between regular-use floors, commonly located in hospitals and laboratory-type buildings to allow space for the mechanical systems of the building. By providing this space, laboratory and hospital rooms may be easily rearranged ...

  8. UPMC Mercy South Side Outpatient Center - Wikipedia

    en.wikipedia.org/wiki/UPMC_Mercy_South_Side...

    UPMC Outpatient Center was a 209,000-square-foot (19,400 m 2) outpatient facility that provides, among other services, Orthopaedic services, primary care services, and physicians offices to the residents of Pittsburgh 's South Side neighborhood. [1] UPMC Outpatient Center operates according to the directives established by the United States ...

  9. United States Marine Hospital (Pittsburgh) - Wikipedia

    en.wikipedia.org/wiki/United_States_Marine...

    The building layout was based on the then-standard Marine Hospital plan by Robert Mills and Thomas Lawson. It was located downstream of Allegheny City. In 1871, the Marine Hospital Service was created within the Department of the Treasury to centralize management of the system.