Fonts used in FHWN

The official name for the font most commonly used on US road signs and highway maker shields is FHWA (FHWA referes to the Federal Highway Administration.) Series E modified. This is a sana-serif font. For details, please visit Traffic sign from Wikipedia.

A commercial font is sold by DGI-Technologies. A free font, not for the commercial purposes, is also available at Roadgeek Fonts.