Related Clues:

• Curb locales
• Sides of blocks
• Ways to confuse testers
• Google Maps lines
• Composition of some grids
• City map lines
• Block sides
• 1st, 2nd, 3rd, etc
• Spots with potholes
• Built-up roads
• Stickball venues
• Public ways
• Many map lines
• Here are roads — ah, so go further, travelling round!
• Parts of infrastructure