howard county general hospital schematic design proposal casey schardt
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Howard County General HospitalSchematic Design Proposal
Casey Schardt
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.
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
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.
Lobby/Reception Area
Waiting Area
Reception Vending
Vestibule
Children’s Area
Bulkhead over desk
Lobby/Reception AreaVisual Tasks
• Reception Desk– Reading, Paper tasks– Interaction with patients– VDT use
• Waiting Area and Vending Area– Light Reading– Relaxing
• Corridor– Orientation
Lobby/Reception AreaDesign Criteria
• Reception Desk– Ambient Illuminance: 30 fc– Illuminance on Desk: 50 fc– Low uniformity (4:1) on surfaces to minimize
veiling reflections both in paper tasks and VDTs– Minimal direct glare– Good color and modeling of faces
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
Reception Area
Semi-Indirect Pendant
Fluorescent Louvered Slots
(in bulkhead)
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.
Reception Area
Veiling Reflections are harmlessly bounced upward
Uniform background minimizes veiling reflections in VDT screens
Waiting Area
Indirect Pendants
TV
TV
Table Lamps
Paintings with spotlights
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.
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.
Nurse Station
Nurse Station
Nurse Station
Charting
Corridor
Staff Corridor
Nurse StationSection
Nurse StationVisual Tasks
• Nurse’s Desk– Reading, Paper tasks– Interaction with patients– VDT use
• Charting– Heavy VDT use– Also reading (paper tasks)
• Corridor– Orientation
Nurse StationDesign Criteria
• Nurse’s Desks– Ambient Illuminance: 30 fc– Illuminance on Desk: 50 fc– Low uniformity (4:1) on surfaces to minimize
veiling reflections both in paper tasks and VDTs– Minimal direct glare– Good color and modeling of faces
Nurse StationDesign Criteria
• Charting– Ambient Illuminance: 30 fc– Low uniformity (4:1) on surfaces to minimize
veiling reflections both in paper tasks and VDTs– Minimal direct glare
• Corridor– At least 5 fc for orientation
Nurse Station
Linear Semi-Indirect Pendants
Fluorescent Louvered Slots
(in bulkhead)
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.
Nurse Station
• Corridor– 2x4 lensed troffers will be used in the
surrounding corridor spaces.
• Color– The hospital’s standard CCT of 4100 K will be
used for the nurse station and surrounding corridors.
Conference Room
Projection Screen
Marker Board
TVPC
Monitor
Conference RoomVisual Tasks
• Meeting– Reading, Paper tasks– Personal Interaction
• Presentations– Projection Screen– Marker Board– Television and PC Monitors
• Videoconferencing– Viewing Monitor– Camera Considerations
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
Conference Room
Semi-Indirect PendantsWall
Slot
Wallwash Downlights
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
Conference Room• The table surface is to have a high
reflectance which will help to reflect some light to the underside of people’s 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
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.
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.
Electrical Design
• The emergency power loads will be calculated.
• A new emergency generator will be sized for the addition (the facility’s existing generator was accurate, but I’ll design one assuming it wasn’t).
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.
Electrical Design
• New load calculations will be done to account for reduced lighting loads due to installing more efficient systems.