The map above illustrates the US Interstate Highway System.
What is the difference between a U.S. road and a highway? and interstate?
Although the U.S. highways pass directly through cities and have many roads that drivers can open, Interstates usually have only a selected number of exits, using routes on open or exit roads instead of direct intersections with other roads.
What was the purpose of America's Interstate Highway System?
They were intended to serve a number of purposes: to eliminate traffic congestion; instead of what one highway attorney calls “unpopular slums” with clean concrete ribbons; to improve coastal transportation, and make it easier to get out of big cities in the event of an atomic attack.
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