Clearview
For all you typography geeks out there, a new typeface has been given interim approval for optional use on highway and other signs (link via Typographica). Clearview was developed for increased legibility, and you can definitely see the difference. The stroke widths are thinner than the blocky and ubiquitous Highway Gothic. It’s lighter and more open, and cuts down on halation. (New vocab word! Though it sounds like a medical condition. “Warning: side effects may include halation.”)
Of course my preference would have been Comic Sans. Kidding, so kidding.