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Lighting Research and Technology
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Movement under emergency lighting: Comparison between standard provisions and photoluminescent markings

G M B Webber, BSc ARCS PhD

Department of the Environment Building Research Establishment, Building Research Station, Garston, Watford WD2 7JR, UK

P.J. Hallman, MSc

Department of the Environment Building Research Establishment, Building Research Station, Garston, Watford WD2 7JR, UK

A.C. Salvidge, MIElecIE

Department of the Environment Building Research Establishment, Building Research Station, Garston, Watford WD2 7JR, UK

Photoluminescent markings are currently finding application in emergency and safety signs. The material glows in the dark (if previously excited) and is therefore particularly useful at times of power failure, especially since its temporal luminance decay is matched approximately by dark adaptation of the human eye. Comparability was found between speeds of movement under the minimum BS5266 emergency illuminance and with photoluminescent markings alone. Questionnaire scores from subjects indicated that the latter is at least as acceptable on escape routes and is often preferred. Data are given on the photometric properties of such markings and interim design guidance is offered for their use as potential alternative or supplementary provision to the traditional emergency lighting approach.

Lighting Research and Technology, Vol. 20, No. 4, 167-175 (1988)
DOI: 10.1177/096032718802000404
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