Affiliation:
1. Pacific Northwest National Laboratory, Portland, OR., USA
2. School of Architecture, The University of Sheffield, Sheffield, UK
Abstract
After dark, pedestrians may experience discomfort from glare caused by outdoor lighting. While several models for measuring discomfort have been proposed, there is no consensus as to which model should be used. The performances of different models were investigated using datasets from four independent studies, comparing the degree of association between model predictions and subjective ratings, and the ability of a model to distinguish between discomfort and non-discomfort situations. The models tested are those proposed by Petherbridge and Hopkinson in 1950, Schmidt-Clausen and Bindels in 1974, Bullough et al. in 2008 and Lin et al. in 2014 and 2015. They also include two quantities: direct illuminance at the eye from the glare source and average source luminance. Of the models tested, the best performance was found using either the model proposed by Bullough et al. in 2008 or by direct illuminance at the eye.
Funder
U.S. Department of Energy
Subject
Electrical and Electronic Engineering
Reference48 articles.
1. Commission Internationale de l’Éclairage. Disability glare, discomfort glare. ILV: International Lighting Vocabulary. CIE S 017/E:2020, 2nd edition. Vienna. https://cie.co.at/e-ilv (2020).
2. Sensitivity Analysis of Glare Rating Metrics
Cited by
2 articles.
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