Surely you must have noticed the pads with little bumps on them that have sprouted up at the corner of every sidewalk. What are they for, though?
We always thought they were for extra traction in the winter. And maybe they do serve that purpose a bit, but that’s not why they were installed.
Few sighted people would ever notice it, but they’re laid out in patterns that tell a blind or low-sighted person some information about where they are.
Those dots in a grid tell a visually impaired person that a curb sloping down into a road is coming up.
There are many other patterns out there on the sidewalks that you might not have noticed
And they’re all there to help the visually impaired get around safely
Images source: diply.com