Related Clues:

• Mail carriers have them (Abbr.)
• 51-Down and others: Abbr
• Some hwys
• Lines on city maps: Abbr
• RR crossing sites
• U.P.S. driver assignments: Abbr
• Nos. on maps
• They cross aves
• Nos. on road atlases
• Map nos
• Short streets?
• Travel options: Abbr
• Routes: Abbr
• County sts
• Charing Cross and Abbey: Abbr