| Title |
Analysis of Cognition Effectiveness of Emergency Light According to the Luminance of BackGround Surface in Underground Space |
| Authors |
Son, Jong-Yeong ; Lee, Soo-Ho ; Jeon, Gyu-Yeob ; Hong, Won-Hwa |
| Keywords |
Emergency Light ; Luminance ; Seek Time ; Evacuation Time ; Emergency Light Cognition Distance |
| Abstract |
In the case of Daegu subway arson in 2003, it was found out that the evacuation system could not play its own role in the dense smoke and blackout during the fire. Due to the dense cloud of smoke and blackout, the people could not easily find the way out. Proper emergency light plan considered cognitive characteristics of evacuees is set up in such places, if so it will be a great help for evacuation. The information obtained through visual sense induces behaviors intuitively. So, effective evacuee guidance is implemented by installing various evacuation guidance devices (emergency lights and luminous egress guide-lines). In connection with this topic, Jeon Gyu-yeob(2011) carried out an on-the-spot experiment focused on changes in visual perceptional evacuation environment and evacuation abilities. And on the basis of the results, he carried out a study on changes in evacuation behaviors through visual perceptional restriction. However, studies on characteristics of visual perception that has an effect on behaviors of evacuees and evacuation behaviors are not sufficient. Therefore this study examined the effect of background luminance of the emergency light induced to recognize the emergency light. Therefore, to produce a device for adjusting the brightness experiment, this study simulated evacuation experiments were performed for 136 people. The value of the result indicated by seek time of emergency light, evacuation time and emergency light cognition distance. |