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.

At first glance, the U.S. Interstate Highway system might seem like a logical grid-based masterpiece with a semblance of order behind its numbering system. Odd-numbered interstates run from north to ...

American Highways That Should Be Interstates Something unique to America is the interstate system, the map of highways established in 1956, carving out countrysides and cities to create connections to ...