Howard County General Hospital

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Howard County General Hospital

• Schematic Design Proposal
• Casey Schardt

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Project Information

• Location Columbia, Maryland
• Size 81,000 square foot addition , and 44,000
  square foot renovation to an existing 230,000
  square foot facility
• Cost 20 Million Construction Cost
• Constructed between September 2000 and July 2003.
• New Emergency Dept., Birthing Dept., Neonatal
  ICU, Pediatric Nursing Unit, and expanded Imaging
  Dept.

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Redesigned Spaces

• Lobby/Reception Area Includes reception desk,
  waiting room, vending area, and connecting
  corridors
• Nurse Station Features 2 desk areas open to the
  surrounding corridor, and an enclosed charting
  area
• Conference Room To be designed to accommodate
  meetings, audiovisual presentations, and video
  conferencing

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General Considerations

• Cost/Efficiency
• It is important to minimize costs while
  maintaining quality of all systems.
• This includes initial costs, maintenance costs,
  and operational costs (power consumption)
• Age of Occupants
• Increased light levels to accommodate the
  elderly.
• Increased uniformity (older eyes are more
  sensitive to glare sources.
• Atmosphere
• It is important to keep the hospital as uplifting
  as possible, to ease the feelings of anxiety and
  depression that the patients may be experiencing.
• An appearance of cleanliness should be conveyed.

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Lobby/Reception Area
Childrens Area
Vestibule
Waiting Area
Bulkhead over desk
Reception
Vending
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Lobby/Reception AreaVisual Tasks

• Reception Desk
• Reading, Paper tasks
• Interaction with patients
• VDT use
• Waiting Area and Vending Area
• Light Reading
• Relaxing
• Corridor
• Orientation

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Lobby/Reception AreaDesign Criteria

• Reception Desk
• Ambient Illuminance 30 fc
• Illuminance on Desk 50 fc
• Low uniformity (41) on surfaces to minimize
  veiling reflections both in paper tasks and VDTs
• Minimal direct glare
• Good color and modeling of faces

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Lobby/Reception AreaDesign Criteria

• Waiting/Vending Areas
• Local level of 30 fc available for reading
• Minimal glare to reduce veiling reflections in
  reading material, such as the glossy pages of
  magazines
• Corridor
• At least 5 fc for orientation

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Reception Area
Fluorescent Louvered Slots (in bulkhead)
Semi-Indirect Pendant
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Reception Area

• The semi-indirect pendant is to provide the
  receptionists with an ambient light level, while
  minimizing veiling reflections in their VDTs
• The fluorescent slots are to provide the
  necessary additional light on the desk surface,
  while minimizing glare and veiling reflections
  from the horizontal surface.

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Reception Area
Uniform background minimizes veiling reflections
in VDT screens
Veiling Reflections are harmlessly bounced upward
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Waiting Area
Table Lamps
TV
Paintings with spotlights
Indirect Pendants
TV
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Waiting Area

• The semi-indirect pendants are to provide ambient
  light levels in the waiting area. They also
  provide a bright ceiling to convey a brighter
  appearance to the room.
• Table Lamps are provided to allow the user to
  increase the light level for reading. They also
  convey a more comfortable residential mood.
• Paintings with spot lights are added to
  contribute some visual interest to the space for
  patients to take their mind off waiting.

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Lobby/Reception Area

• Corridor and Vending Area
• These spaces will also have the same pendants to
  match the waiting area and reception desk.
• Color
• The standard CCT for the hospital is 4100 K,
  however this area is to have a lower CCT of 3500
  to give the space a less intimidating, more
  residential atmosphere.

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Nurse Station
Corridor
Charting
Nurse Station
Nurse Station
Staff Corridor
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Nurse StationSection
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Nurse StationVisual Tasks

• Nurses Desk
• Reading, Paper tasks
• Interaction with patients
• VDT use
• Charting
• Heavy VDT use
• Also reading (paper tasks)
• Corridor
• Orientation

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Nurse StationDesign Criteria

• Nurses Desks
• Ambient Illuminance 30 fc
• Illuminance on Desk 50 fc
• Low uniformity (41) on surfaces to minimize
  veiling reflections both in paper tasks and VDTs
• Minimal direct glare
• Good color and modeling of faces

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Nurse StationDesign Criteria

• Charting
• Ambient Illuminance 30 fc
• Low uniformity (41) on surfaces to minimize
  veiling reflections both in paper tasks and VDTs
• Minimal direct glare
• Corridor
• At least 5 fc for orientation

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Nurse Station
Fluorescent Louvered Slots (in bulkhead)
Linear Semi-Indirect Pendants
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Nurse Station

• The linear semi-indirect pendants are to provide
  the nurses with an ambient light level, while
  minimizing veiling reflections in their VDTs
• The fluorescent slots are to provide the
  necessary additional light on the desk surface,
  while minimizing glare and veiling reflections
  from the horizontal surface.

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Nurse Station

• Corridor
• 2x4 lensed troffers will be used in the
  surrounding corridor spaces.
• Color
• The hospitals standard CCT of 4100 K will be
  used for the nurse station and surrounding
  corridors.

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Conference Room
Projection Screen
Marker Board
PC Monitor
TV
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Conference RoomVisual Tasks

• Meeting
• Reading, Paper tasks
• Personal Interaction
• Presentations
• Projection Screen
• Marker Board
• Television and PC Monitors
• Videoconferencing
• Viewing Monitor
• Camera Considerations

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Conference RoomDesign Criteria

• Horizontal Illuminance of 50 fc on table
• Vertical Illuminance of 30 fc on faces
• Vertical Illuminance of 30 fc on white board
• Good uniformity on faces for videoconferencing
• Minimal veiling reflections on VDTs and paper
  tasks
• Good color and modeling of faces

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Conference Room
Semi-Indirect Pendants
Wall Slot
Wallwash Downlights
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Conference Room

• The linear semi-indirect pendants are to provide
  light to the table and give the ceiling a high
  uniform illuminance
• The wallwash downlights, along with the pendants
  provide indirect light delivering light to the
  background, and contributing to a high uniform
  vertical illuminance.
• The wall slot is simply to provide light to the
  white board when necessary

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Conference Room

• The table surface is to have a high reflectance
  which will help to reflect some light to the
  underside of peoples faces, increasing
  uniformity
• The wallwash downlights and the direct light from
  the pendants deliver a direct component for
  better facial modeling.
• Dimming controls will be provided to achieve
  various scenes for each of the different uses of
  the space

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Overall Lighting Design

• There are many ways that the efficiency of the
  lighting system can be improved.
• For example, downlights with 2 horizontal compact
  fluorescent lamps are used extensively throughout
  the building. These fixtures have an efficiency
  of 39.
• 1x4 linear fluorescent fixtures, which are much
  less efficient than 2x4 fixtures are also used in
  many locations
• The benefits of using more efficient fixtures
  will be examined.

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Overall Lighting Design

• T-5 lamps can be used in many types of fixtures
  also to increase their performance.
• More dimming controls will be added in many
  spaces to allow the users to reduce the amount of
  light they use, if desired, especially in those
  spaces with available daylight.
• Automatic shutoff devices, such as occupancy
  sensors will be added in spaces where energy can
  be saved when no one is in the room.

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Electrical Design

• The emergency power loads will be calculated.
• A new emergency generator will be sized for the
  addition (the facilitys existing generator was
  accurate, but Ill design one assuming it wasnt).

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Electrical Design

• An uninterruptible power source will be designed
  to serve the radiology equipment (currently when
  the generator starts up, the small power
  fluctuation affects this sensitive equipment.)
• Panels located in the interstitial spaces will be
  eliminated and served from panels in other
  locations.

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Electrical Design

• New load calculations will be done to account for
  reduced lighting loads due to installing more
  efficient systems.