Related terms:
fhwa
toll
aashto
splits
overlap
parkway
route
freeway
toll road
corridor
highway
interstate
highway system
passing through
interstate standards
interstate highway
new hampshire
national highway system
south carolina
interstate highway system
Wikipedia sources:
Vermont
U.S. Route 1
Interstate 69
Interstate Highway System
United States Numbered Highways
Context for words:
canadian
border
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