The number logic behind the United States’ highways, and how travellers can use it

The United States' numbered highway system, established in 1926, unified travel with a logical numbering convention for US Highways and later the Interstate Highway System. These interconnected routes, alongside state and local roads, form a vital network supporting commerce, defense, and mobility across the nation.

The number logic behind the United States’ highways, and how travellers can use it
The United States' numbered highway system, established in 1926, unified travel with a logical numbering convention for US Highways and later the Interstate Highway System. These interconnected routes, alongside state and local roads, form a vital network supporting commerce, defense, and mobility across the nation.