On: 3% use IE9 and 14% have a disability. Why do we only cater for the former?

[nailer]

Jackhammering street concerns and installing rubber bits with a texture that said to help the blind.

[mikeash → nailer]

Isn't the cost essentially zero if you just install them when you're doing other work?

[nailer → mikeash]

Depends on the price of the rubber bits or the moulds for the concrete ones.

[Sanddancer → nailer]

Concrete molds for curbs are built in-situ to deal with the situation of that particular curb, and the rubber bits are at most $200, so the cost really is fairly negligible.

[djur → nailer]

Could you provide a link? I've never seen rubber bits added to a sidewalk before.

[pmontra → djur]

http://en.wikipedia.org/wiki/Tactile_paving