Blind Guide / Adjustable blind sidewalk

Today, the blind only relies on his auditory to identify traffic signals and cross the road, but such way is easy to be disturbed by the traffic noise.
To solve this problem, we redesign the blind sidewalk. The BLIND GUIDE what we design, can give a foot-touch induction for the blind， let them safe and convenient to cross the road.
When the pedestrian traffic light is red, the BLIND GUIDE stays protuberant dots, can pass information to the blind which means stopping walking. Otherwise, the strip tiles turn up from the ground, prompting and guiding the blind to cross the road.

Video URL: http://youtu.be/NJhPz0sSZ1w