2013 Volume 12 Issue 3 Pages 355-359
It was impossible for hearing-impaired people to recognize common emergency information, such as the announcement or the alarm. To resolve this problem, NTT Facilities Inc. developed the emergency information system using the room lightings. This study was a basic design research aiming at development of the emergency system. We investigated the evaluations of lighting colors and flashing / lighting using free answer. Participants were asked to tell how they feel for white, yellow, red, blue, green and purple lighting and flashing of those. For the analysis, we used KJ method and correspondence analysis. As a result, we overviewed each light's characters. This method can be useful for basic design research.