Related Clues:

• US 1, for one
• Road sign no.
• Hwy., e.g.
• Check inside?: Abbr.
• No. in a travel guide
• I-10, for one
• ___ 1, along the Atl. coast
• 66 is a famous one (Abbr.)
• SASE, for example
• Placed inside a pkg., e.g.
• Rd. with a no.
• Route, abbr.
• U.S. 1, for one: Abbr.
• AAA info
• Numbered highway: Abbr.