sidewalk

Please use sidewalk on the wesouth side of the street.

As long as people are acutely aware of it, it's not a problem, right?

Either they ran out of hexagons, or color blindness has a nasty cousin called "shape blindness."

You know those games of baseball that all the kids played in the street, and they had to yell "car" every time a car was coming? Yeah, it's kind of like that.