The first Light Right Consortium research project was conducted in
an office building in Albany, NY. |
results
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Additional research projects are in the planning stages. The Light Right
Consortium is planning a field study for 2005 2007 to investigate
the impacts of lighting in the context of permanent employment situations.

The
research team was selected through a solicitation and includes the Lighting
Research Center at Rensselaer Polytechnic Institute and the
Institute for Research in Construction at National Research Council Canada.
The Albany research project uses a field simulation approach. This means
that research will be conducted in an actual office setting, rather than
a laboratory, but will utilize simulated tasks and a degree of experimental
control which typify laboratory-type studies. This methodology was selected
to enhance the realism of the study and, ultimately, to increase the external
validity of the work.
The question this study is addressing is, "Can different forms of
realistic office lighting affect the performance of office work or the
well-being of employees?" The primary variables were room surface
reflectance and personal control. An office was furnished as a typical
office space for nine workers. The space had windows at the perimeter
of the space and access to a view to simulate a typical open plan condition,
but the actual daylight impact at the workstation locations was mitigated
with the use of translucent window shades.
An office was furnished as a typical open plan workplace, and two experiments
were conducted with a total of six different lighting conditions.

The space was carefully planned and outfitted to allow the researchers
to change the lighting between different lighting systems without the
knowledge of the subjects.
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CONDITION 1:
A regular array of parabolic-louvered luminaires
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CONDITION 2:
A linear system of direct / indirect luminaires,
together with wall-washing to brighten the walls.
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CONDITION 3:
The same as the best practice but with a moveable
desk lamp having three manually switched light outputs and providing
some individual control.
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CONDITION 4:
Direct / indirect luminaires suspended over
the center of each cubicle, together with the wall-washing system.
The direct component of each suspended luminaire could be dimmed
using an interface on the occupant's computer.
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The conference room and hallway areas were designed to be consistent
with the open plan designs for each of the conditions.
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Condition 1 had parabolic luminaires in the conference
room and hallway. |

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Conditions 2, 3, and 4 had indirect lighting solutions in the conference
room and hallway. |

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The experiment was designed to test the effects of lighting design
on the outcomes as well as indications of the psychological processes
that might mediate these effects. The experimental methodology used
both a between-subjects and within-subjects design. Temporary office
workers were hired to work under the different lighting conditions
for a typical 8-hour day. The tasks were typical of office work
including clerical, cognitive and team tasks. Many different output
measures were collected (both subjective and objective) resulting
in a significant set of data. See results
here.
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