light products - Illuminating Engineering Society

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I I D A P R O J E C T
Blue fluorescent billboard fixtures illuminate the
cutouts in the roof and are visible to occupants of
other building and even plane passengers.
occupants from extensive direct solar glare.
These large motorized wall panels with a unique
luminous panel can be opened or closed
depending upon the daylighting condition. The
combination of direct and indirect lighting created
the appropriate visual environment.
The other interior spaces were designed to
promote comfortable breakout areas for the
traders. “Mixer” stations were created for the
open areas where the traders could relax, get a
beverage or get their mail. These millwork stations
were designed to incorporate indirect
lighting to provide a spacious comfortable public
area. Cutout panels in the ceiling combined
with compact fluorescent downlights, decorative
wall sconces and wallwashers helped create
a unique atmosphere.
Civic Image
The project as viewed from the city creates a
new and unique image for this banking institution.
The open trading floor appears to look like
a futuristic loading bay for aircraft. The open
glazed north wall allows great sightlines into this
dramatic addition to the skyline. The unique
image extends to the sky, as the building is visible
to incoming planes and occupants of other
buildings. Blue fluorescent billboard fixtures illuminate
the cutouts in the roof structure.
All of the lamps specified were extremely
efficient and provided exceptional color rendering
properties throughout the facility. All light
sources used are rated for long life making this
facility easy to maintain. The trading area will
be group re-lamped once a year over a weekend
to ease maintenance. Tungsten halogen
lamps were used in few specialty areas minimizing
maintenance efforts even further.
Finally, the energy utilized for the project was
extremely low. The overall project consumed a
connected load of 1.4 watts per sq ft. The
“effective” power density was reduced by an
estimated 50 percent, utilizing only .7 watts
per sq ft when considering the benefits of daylight
harvesting and time-of-day scheduling.
The design team was surprised when it ran the
numbers. It caused the team to go back and reanalyze
the design to make sure it had not
overlooked anything. But it all seemed to add
up on the Bank of America trading floor.
About the Designer: Stephen Margulies,
Member IESNA (1981), IALD, joined
Cosentini Associates in 1982 and is now
director of Cosentini Lighting Design. His
award-winning lighting design projects
include the Disney Feature Animation
Building in Glendale, CA; 745 Fifth
Avenue and IBM offices in New York, NY;
and Two Logan Square and Bell Atlantic Headquarters in
Philadelphia, PA—and now the Bank of America project in
Charlotte, NC. Industry awards include the OSRAM Sylvania
Energy and Environmental Design IIDA Award of Excellence;
the IIDA Lumen Award; and the Guth Award of Merit. Mr.
Margulies has lectured at Harvard University, the Cooper Union
School of Architecture and for IESNA educational programs.
December 2005 LD+A 51