Related Clues:

• P and Q, in D.C
• GPS grid
• John, Paul and George, but not Ringo: Abbr
• D and C, in D.C
• Highways: Abbr
• Urban network: Abbr
• Hwys. and blvds
• City rtes
• Some GPS lines
• Canonized gp
• Some holiday honorees: Abbr
• Roads that cross avenues: Abbr
• You may pass on these (abbr.)
• Urban thoroughfares: Abbr
• Many GPS lines: Abbr