The story of America’s interstates is usually told as a straightforward tale of postwar progress, but the real origins are stranger and more contested than the green signs suggest. The Dwight D.

Praised as one of the greatest public works project in American history, the Interstate Highway System is about to turn 70. Love them or hate them. The interstate highways are the arteries of our ...

There are a number of different road designations in the United States, from highways and freeways to interstates and routes, and it can cause some confusion with different laws and regulations.