Does LED lighting improve pedestrians visual performances ?
(2014) Lighting Quality and Energy Efficiency — Location: Kuala Lumpur, Malaysia (24.April.2014)
Files
CIE2014_Romnée_Performances.pdf
Open Access - Adobe PDF
- 597.67 KB
Details
- Authors
- Abstract
- (en) A field survey was conducted in order to determine whether light spectrum of public lighting influences the ability of pedestrians to perform several visual tasks. This survey aims to compare the visual performance of pedestrian under two kinds of light sources: LED and HPS sources. Visual performance of 40 people aged between 17 and 78 years have been measured through 4 specific tasks: facial and intent recognition, colour recognition, visual acuity and off-axis detection. The results show that the spectral distribution of the lamps influences visual performance and that the magnitude of the effect varies according to the task. Depending on the task, people can perform as well under LED sources than under HPS sources,. But for peripheral tasks, people perform better under LED sources than under HPS sources. This paper confirms that under mesopic light levels, where rods and cones work simultaneously, LED sources are more efficient for pedestrians.
- Affiliations
Citations
Romnée, A., & Bodart, M. (2014). Does LED lighting improve pedestrians visual performances ? Proceedings of CIE 2014 “Lighting Quality and Energy Efficiency”. Published. Lighting Quality and Energy Efficiency, Kuala Lumpur, Malaysia. https://hdl.handle.net/2078.5/231477