Title Analysis of the Installation Location of an Exit Sign Lighting to Minimize Human Reaction Time
Authors 오륜석(Oh, Ryun-Seok) ; 배영훈(Bae, Young-Hoon) ; 최준호(Choi, Jun-Ho)
DOI https://doi.org/10.5659/JAIK.2023.39.7.191
Page pp.191-197
ISSN 2733-6247
Keywords Exit Sign Lighting; Installation Location; Reaction Time; Cognition; Affordance
Abstract According to NFTC 303 and NFPC 303, exit sign lights are set to be installed at a height of 1.5 m or more from the floor, which is a common installation location for exit lights in Korea. However, there are cases where fire or electrical engineers arbitrarily interpret this and install emergency lights in unique locations. Such uneven attachment positions of exit guidance lights can cause confusion in the cognitive process of evacuees. Therefore, in this study, an installation location that can minimize the reaction time for recognizing evacuation route guidance was derived. According to the experimental results, people's reaction time was the shortest by about 20% compared to other cases when the evacuation exit guidance light was installed at the center of the emergency exit and at the location where the lower part of the guidance light and the upper part of the emergency exit face each other. The results of this study can be used as an engineering basis for evacuation guidance installation standards and cognitive performance evaluation.