Abstract
In this study, the proof experiment of the pattern which combined the colors of the brightness contrast value judged to be able to improve the visibility of the Tactile Walking Surface Indicator (hereafter referred to as "TWSI") to verify the visibility in the state actually constructed on the floor side was done. The illuminance confirmed the visibility of the TWSI (discriminability) under the twilight vision (5lux), the pavement illumination environment (10lux) at nighttime, and photopic vision (500lux) environment about the TWSI set up on the palette of the floor side replacement device. It became the result of verifying the result of a current brightness contrast experiment and the color characteristic measurement experiment from the result of these proof experiments.
