(NEXSTAR) – Only those with an acute attention to detail have noticed something wonky has been happening to signs on U.S. freeways and interstates over the past several years. Federal highway ...

Drive down virtually any highway in America and you'll see a variety of signage that's designed to give drivers information on their location, the rules of the road, and the presence of any nearby ...

If you ever wondered why the signs that you see on the highway, particularly green, here are some safety-based reasons you ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (NEXSTAR) – Only those with an acute ...