Predicting the discomfort glare experienced by pedestrians: UGR and CBE

Céline Villa (1) , Roland Bremond (1) , Enoch Saint Jacques (1) , Eric Dumont (1)

1 IFSTTAR/COSYS/LEPSIS - Laboratoire Exploitation, Perception, Simulateurs et Simulations

In a previous paper, the relevance of several discomfort glare predictors has been considered for pedestrian ratings (Villa et al., 2017). These results are extended here to the Unified Glare Ratio and the Cumulative Brightness Evaluation System, which do not predict a de Boer rating. Conversion scales are proposed to compare the mean subjective de Boer ratings with the predictions of these models. The UGR leads to a strong overestimation of the glare experienced by pedestrians, while further studies are needed in order to assess the usefulness of the CBE for pedestrian lighting.

Mots clés: CUMULATIVE BRIGHTNESS EVALUATION - CBE; UNIFIED GLARE RATIO - UGR; DISCOMFORT GLARE

Mots clés: EBLOUISSEMENT; PIETON; CONFORT; PERCEPTION (SENSORIELLE)

Domaines: Autre

Céline Villa, Roland Bremond, Enoch Saint Jacques, Eric Dumont. Predicting the discomfort glare experienced by pedestrians: UGR and CBE. CIE 2017, Commission Internationale de l'Eclairage Midterm Meeting, Nov 2017, Jeju, France. pp.1088-1097, ⟨10.25039/x44.2017.PO86⟩. ⟨hal-01675465⟩