The influence of controllable task-lighting on productivity: a field study in a factory

Applied Ergonomics
H T JuslénA D Tenner

Abstract

This study examines whether or not a controllable task-lighting system that allows people to select high lighting levels will enhance productivity under real working conditions. For a period of 16 months a study was carried out in a luminaire factory in Finland in which such a task-lighting system was installed above 10 individual workstations. The illuminances selected by the users were recorded and productivity was monitored. Enhancing productivity can be relevant in industrial processes. The increase of productivity for the test group was +4.5% compared to a reference group, and statistically significant. The mechanism for this increase can be improved visual performance, biological effects of light, or psychological effects. Different dimming speeds were used to see whether the subjects' choices were based on illuminance or on the response of the control system. Decreasing the dimming speed of the system decreased the illuminance chosen by 13%. However, at slower dimming speeds the subjects took 55% longer to reach a given level, which suggests that they were aiming to set the lighting to their preferred level and not just pushing the button for a certain time.

References

Sep 16, 1999·The Journal of Clinical Endocrinology and Metabolism·F A Scheer, R M Buijs
Feb 9, 2002·Science·David M BersonMotoharu Takao

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Citations

Apr 17, 2008·Industrial Health·Chiuhsiang Joe LinFeng-Yi Tseng
Sep 12, 2015·Applied Ergonomics·Kyungah ChoiHyeon-Jeong Suk
Jun 15, 2018·International Journal of Environmental Research and Public Health·Lilin XiongMeng Tang
Mar 4, 2015·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Jens HoffmannRolf Pohmann
Oct 10, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·A AndreychenkoC A T van den Berg
Jun 13, 2015·Asia-Pacific Journal of Ophthalmology·Takeshi IdeKazuo Tsubota
Jan 1, 2014·Journal of Environmental Health Science & Engineering·Komalanathan Vimalanathan, Thangavelu Ramesh Babu
Nov 2, 2021·Frontiers in Big Data·Atousa Zarindast, Jonathan Wood
Oct 11, 2018··Francesco AnselmoBurcin Becerik-Gerber

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