[Pecos]

The article said this was the result of Federal legislation. So.... is NYC the only area affected? If so, why? If not, then the bill will be substantially higher for changing out every street sign in the country.

[massgopguy]

“AND THEN THEY MADE THE STREET SIGNS IN MONGOLIAN! CAN YOU READ MONGOLIAN? I CAN’T READ MONGOLIAN! ONLY MONGOLIANS CAN READ MONGOLIAN!” - John Belushi

[Dr. Sivana]

is NYC the only area affected? If so, why?

I don't think so. The new highway signs in Illinois also use the clearview typeface. The most noticeable change is the lower case letter l ("el") which has a slight curve to it.