Related Clues:

• Map ref.
• Hgwy.
• Road-map no.
• Tpke., e.g.
• Bus sched. info
• GPS offering
• ___ 1 (Me.-to-Fla. highway)
• U.S.P.S. abbr.
• Itin. item
• USPS carrier's assignment
• Certain artery: Abbr.
• Main drag, for ex.
• Way, for short
• 66, notably: Abbr.
• I-40, e.g.