Purpose : The current tactile walking surface indicators have not been easily accessible to blind andvision-impaired people due to unexpected variation of walking environment and walking behaviorof transportation poor. Moreover, those indicators frequently cause the inconvenience totransportation users’ walking. Thus, this study aims to investigate the improvement of tactilewalking surface indicators, by comparing and analyzing findings from the relevant research. Resultsfrom this study contribute to suggest the better standard criteria of tactile walking surfaceindicators for transportation users, especially blind and vision-impaired people, the handicapped,the child and the elderly and weak, providing the secure and convenient circumstance for walking.
Method : This study presents the problems about the standard criteria of tactile walking surfaceindicators via the examination of finding from the past studies. For example, we examine allstandard criteria, focusing on shapes, colors and qualities of materials used for Tactile WalkingSurface Indicators. Then, the present study suggests the improvement of standard, which apply tothe current walking environment practically and reasonably. Results : To improve the currentcondition of tactile walking surface indicators, the analysis on international and domestic standardcriteria need to be conducted. Findings from these analyses helps to suggest the better criteria forthe interval between projecting points of tactile walking surface indicators, effective perceived rangeof walking road, and the brightness contrast between tactile walking surface indicators and finishingmaterials. Implication : The suggested standard criteria of tactile walking surface indicators need tobe tested by transportation users, and the practical instructions of establishing tactile walkingsurface indicators should also be developed.