Related Clues:

• Road sign no.
• Hwy., e.g.
• A and B in D.C., e.g.
• Parts of some grids: Abbr.
• NYC block separators
• No. in a travel guide
• I-10, for one
• ___ 1, along the Atl. coast
• 66 is a famous one (Abbr.)
• Rd. with a no.
• Route, abbr.
• Urban rtes.
• John, Paul and George: Abbr.
• U.S. 1, for one: Abbr.
• Paul and John: abbr.