ALTERNATEROUTE
Alternate route
An official alternate route is a special route in the United States that provides an alternate alignment for a highway. They are loop roads and found in many road systems in the United States including the U.S. Route system and various state route systems. Alternate routes were created as a means of connecting a town desired to be on a route which had been routed differently to put another important town or city on the route.The above text is a snippet from Wikipedia: Alternate route
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