PROCEEDINGS OF the 29th Quadrennial Session of the CIE 2019
DOI: 10.25039/x46.2019.op40
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Testing the Predictive Power of Visual Discomfort From Glare Metrics in the Near-Window and Near-Wall Zones of the Daylit Classroom Environment

Abstract: The objective of the present study was to find how well a group of selected luminance-based metrics predict reported visual discomfort from daylight glare in spatial conditions that differ from the conditions where metrics tend to developed and validated for. An empirical study involving the assessment of visual discomfort from glare by n=50 subjects (n=185 cases) in a daylit-only classroom space was carried out to investigate this problem. It was found that the glare indexes were the most robust metrics predi… Show more

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Cited by 5 publications
(3 citation statements)
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“…The study by Viula and Hordjik 19 suggested that DGP provides a relatively better predictive power of the reported discomfort from glare in a classroom compared to other metrics. However, in that study, the metric showed a poor performance in the inner parts of the room, a result that warrants an investigation on how to improve the DGP.…”
Section: Introductionmentioning
confidence: 99%
“…The study by Viula and Hordjik 19 suggested that DGP provides a relatively better predictive power of the reported discomfort from glare in a classroom compared to other metrics. However, in that study, the metric showed a poor performance in the inner parts of the room, a result that warrants an investigation on how to improve the DGP.…”
Section: Introductionmentioning
confidence: 99%
“…The most critical consideration in the design of educational buildings is the provision of comfort conditions, primarily acoustic, visual and thermal conditions (Yener, 2002). Providing daylight in classrooms without the risks of discomfort glare is one of the aspects of a quality classroom environment (Viula, 2022). Solar gains in buildings contribute to the wellbeing of building occupants and play a role in the building's energy efficiency.…”
Section: Introductionmentioning
confidence: 99%
“…The gaze direction and position of an occupant are also important for visual discomfort from daylight: Viula et al 7 pointed out that the Daylight Glare Probability metric showed lower predictive performance for occupants at the inner parts of a classroom and proposed modifications to improve discomfort glare predictions in classrooms. Quek et al 8 compared the validity and consistency of existing questionnaires to assess discomfort glare in daylit indoor spaces.…”
mentioning
confidence: 99%