The dilemma of emergency lighting: theory vs. reality

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Journal titleJournal of the Illuminating Engineering Society
Pages113121; # of pages: 9
SubjectLighting; Emergency lighting/wayfinding
AbstractOne of the greatest responsibilities of building maintenance is the safety of occupants. There must always be enough illumination to enable orderly, accident-free evacuation from buildings. Webber/then Ouellette and Rea2 consolidated several studies from around the world3-6 that show that under reduced emergency lighting, performance is reduced and evacuees move more hesitantly and slowly.3 For example, at a mean of 0.16 lx, Boyce3 observed hesitant movement and collisions with furniture, jeopardizing the efficiency and possibly the safety of building evacuation. At yet lower levels of illumination, Boyce3 observed confusion, reversals in direction of movement, and dependence upon tactile cues for wayfinding.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
NoteAlso presented at the IESNA Conference held in San Diego, CA, USA, August 1992
Peer reviewedYes
NRC number33113
NPARC number20359146
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Record identifier48fffe84-e8d9-4d48-a37b-0d206cabe07c
Record created2012-07-20
Record modified2016-05-09
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