PHYSICAL PARAMETERS AFFECTING THE SUBJECTIVE EVALUATION OF A DAYLIT INDOOR RESIDENTIAL ENVIRONMENT BASED ON A USER ASSESSMENT SURVEY

摘要

In order to investigate the underlying factors controlling the user satisfaction to a daylitenvironment, a user assessment survey was conducted using scale models under real skies. Subjects were asked to give sensation ratings after viewing the daylit environment inside the scale model. Illuminance and luminance measurements were taken at the same time using illuminance meters and a digital camera. The physical parameters which were found to have high correlation with subjective sensations include the average interior horizontal illuminance, the average illuminance at the view slot, the average luminance of the whole visual field as well as the average luminance of the 40 deg wide horizontal band of the visual field. It was found by regression analysis that the average luminance of the whole field of view and the external vertical illuminance on the window could be predictors of brightness and comfort sensations.