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.

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.

WASHINGTON - Ohio is examining ways to put underdeveloped parts of the state on the road to prosperity by constructing a new interstate highway. It’s joining a decades-long effort to create a new ...