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 ...
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 ...
Nov. 11—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 ...
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