The United States’ system of numbered highways is a foundational part of the country’s transportation network. Composing multiple tiers, such as Interstate Highways, US Highways, state highways, and ...

Happy Monday. And happy birthday to the U.S. numbered highway system, which was established nearly a century ago. Before there was U.S. 66 or U.S. 54, motorists traveled on auto trails across the ...

Route 66 wasn’t the longest or oldest or most scenic road in the United States, but it’s easily the most famous. Running through eight states from Chicago to Los Angeles, the 2,400-mile Route 66 was ...

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.

Ever wondered how the highway and interstate numbers came to be? What do they even mean if they mean anything at all? Behind those numbered shields displayed on the signs is a mathematical logic grid ...