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National Highway System (United States)

3:54

The Origins of the US Highway System

2:00

US Interstate highway system time lapse

3:42

US NUMBERED INTERSTATE HIGHWAY

1:32

How do they number those interstates?

1:57

Interstate Highway System

The National Highway System (NHS) is a network of strategic highways within the United States, including the Interstate Highway System and other roads serving major airports, ports, rail or truck terminals, railway stations, pipeline terminals and other strategic transport facilities. Altogether, it constitutes the largest highway system in the world.