improved tactile indicators for visually impaired people and associated installation method

摘要

There is a tactile indicator for the visually impaired having at least one marker head (22) which in a position of use protrudes above a walkway surface. A flange (23) extends down from the underside of the marker head (22) and is adapted for a close tolerance sliding fit into a channel cut in said walkway surface. There are a plurality of upwardly inclined ribs (25) formed on the flange (23) so that the flange (23) once push fitted into the channel is secured in place without adhesive by outward pressure of the ribs (25) on the sides of the channel.