tactile paving installed on building floors to guide people with disabilities

paving tactile blind floor yellow street sidewalk road sign pavement disabled blindness urban path line pedestrian footpath walkway braille block outdoor impaired warning symbol surface ground help walk disability background tile pattern vision people guide stick design dot cane visually tactilepaving person direction assistance concrete texture crossing handicap detectable tiles public slip flooring pathway textured navigation safety abstract directional mark route visual traffic alert architecture construction eyesight outdoors concept accessibility stripepattern guiding audible guidance signs outside bricks disabilities