Related Clues:
- They cross aves.
- They meet at a junct.
- A and B in D.C., e.g.
- Parts of some grids: Abbr.
- NYC block separators
- Urban rtes.
- John, Paul and George: Abbr.
- Paul and John: abbr.
- Network on a 55-Down: Abbr.
- Elm and Vine, briefly
- Some city map lines: Abbr.
- They may have sunny sides: abbr.
- PO listings
- St. crossers
- Valentine and others: Abbr.