Question: What is the name given to a north-south US Route in the eastern United States which extends for 680 miles from an interchange with New York State Route 17 in Pennsylvania, to an intersection with US 1 in North Carolina, passing a populated place known as Emery 50 miles south of Greensboro?
Sentence (from "U.S. Route 220"): Some sections of the route are part of the Appalachian Development Highway System's Corridor O as well as I-73 in North Carolina.
Relevant evidence: No