연기농도와 최대가시거리 변화에 따른 피난구유도등의 표시면 색상별 인지성능평가

Abstract

When a fire accident takes place in a large building, occupants must be evacuated to a long distance and complex interior structure which can interfere with correct way-finding. For that reason It is necessary to use exit sign for facilitating effective evacuation of occupants. However, smoke, blackout, and other various factors limit the field of view of evacuees and lower efficiency of exit sign. In this study, colour-related standards for exit sign in South Korea and other countries was analyzed. As a result, found that these regulations are mostly based on dark environment, without taking into account the diversity of evacuation situations. accordingly field experiments were done to get perceptive effects of hue of exit signs according to smoke-density and maximum visible distance. In this field experiment, a translucent eye-patch was used to simulate limited field of view caused by smoke. And exit sign of seven colour(red, orange, yellow, green, blue, navy, and purple) which can take into account all of the visible light areas, were chosen for the experiment. As a result, in average, exit sign of navy colour have 16.20% higher perceptive effects than exit sign of green colour.