OFFICE WORKER’S SATISFACTION WITH THE LIT ENVIRONMENT

Lighting has been proven to influence human directly and indirectly. In addition to office worker’s needs of lighting conditions, it is essential to investigate office worker’s preferences regarding the lit environment. The objective of this paper was to identify lighting parameters which relate to overall satisfaction with lighting in a cross-country field study, based on subjective data. Two field studies were performed (the Netherlands: spring 2016 and Italy: spring 2018). The Office Lighting Survey (OLS) was distributed to gather data on office worker’s satisfaction with lighting. In both field studies, the significant correlation between overall satisfaction with lighting and the evaluations of the lighting conditions for all work tasks highlights that lighting conditions need to be examined for every work task. In addition, the OLS results demonstrated that the light aspects ‘illuminance’, ‘uniformity’, and ‘luminance’ are highly important. This is in accordance to what the CIE proposed: describing the total lit environment and not individual elements within it.