無彩色背景における有彩色と無彩色ラインの弱視者の視認性

摘要

近年，高齢者や障害者が自立した日常生活や社会生活を送れるように，世界各国で様々な法整備とともに生活環境の整備が進んでいる.わが国でも，駅や空港，バスなどの公共交通機関，および，大規模なビルや宿泊施設，飲食店などの利用を円滑にするための，「高齢者，障害者等の移動等の円滑化の促進に関する法律(バリアフリー新法)」や，各I治体の「福祉のまちづくり条例」が定められて活動の場が広がっている.%Visually challenged people require visual contrasts between targets and backgrounds. The authors performed a laboratory experiment to gauge the visibility of lines under 100 lx and 1000 lx illuminance conditions. These lines provide an essential reference point in the walking field for the visually challenged. In this paper the authors show the visibility based on the contrast of lines and backgrounds by chromatic and achromatic color combinations. A total of 43 colors were used as target lines and three achromatic colors were used for the backgrounds. Thus, a total of 129 color combinations were used. Data from this experiment may assist in the designing of walking lines on pavement surfaces which could serve as guidance, warnings and other important or useful directions for visually challenged people.