Clearview is the result of years of research in road-sign design and readability testing. Among other improvements, the larger counter spaces (those are the spaces inside the e's, b's, etc.) allow for increased legibility at a distance. The Federal Government likes it so much that Congress just passed down a law that says all traffic signs need to be in this font
by 2018. It's going to cost NYC $27.5M to
switch up all of its street signs. Awesome.