You probably passed one today if you left your house. New sidewalk intersections include truncated domes, which are tactile warning surfaces for pedestrians. As old intersections undergo repairs, they receive the surfaces as well.
It looks like a muffin top from Legoland, a brightly colored, raised bar surface that blends into the sidewalk. It’s hard to be surprised by a ramp or a curb anymore when it’s marked in bright yellow, and my cane and my feet detect it easily. The surfaces are kinda ugly, but it sure makes street crossings safer in busy places like the sidewalks of New York City.
Invented in Japan in the 60s, tactile warning surfaces eventually spread around the world. In the US, federal law mandated curb cuts use detectable warnings since 2001. Ten years before that, rail platforms were required to have them. No one wants to spill out into the street or off a rail platform, visually impaired or not.
Have you noticed truncated domes at intersections or elsewhere? What do you think of them?