Since the Interstate highway system was created from whole cloth, rather than emerging through the years, it shouldn’t come as a surprise that there is a defined logic to the numbering system that ...

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 ...

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.

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 ...

It’s been called the 51st state, a perpetual motion machine, a journey with no end. It is the world’s largest public-works project. In a nation divided by geography and politics, the United States ...

Road enthusiasts, history buffs, and nostalgia fans are gearing up for the 100-year anniversary of historic Route 66 in 2026. About 345 miles of the historic 2,400-mile highway pass through Southern ...