주시각도별 인지거리 측정을 통한 유도등 유효인지성 평가

Abstract

In Korea, a exit sign is installed at a regular position and a walking distance regardless of the cognition angle and the cognition distance in the exit signs at various angles and positions. Therefore, this study measured the cognition distance by the angle by the angle of each exit sign type, the validity of the exit sign is evaluated by deriving the effective cognition area (area where one exit signs influences the occupants effectively), and an eye for describing the smoke occurrence situation is further produced, region change. As a result, the maximum cognition distance was 90° regardless of the type of exit signs. As the angle decreased, the minimum cognition distance at 15° was about 10 meters longer than the maximum cognition distance. Also, as the transmittance decreased, the area of validity also decreased. Therefore, based on this experiment, we proposed a new installation criterion based on the effective cognition area that one of the exit signs can affect so that the shadow area does not occur.