Related Clues:

• ___ 1 (Me.-to-Fla. highway)
• Canonized grp.
• U.S.P.S. abbr.
• Itin. item
• MI and LA
• Lines on GPS displays
• Lines on a city map: Abbr.
• USPS carrier's assignment
• John, Paul, and George, but not Ringo: Abbr.
• The orig. 13, e.g.
• Ave. crossers, perhaps
• Certain artery: Abbr.
• Most letters of the alphabet, in D.C.
• Lines on an urban map: Abbr.
• Main drag, for ex.