Related Clues:

• Some lead to forks, briefly
• Abbey et al.: Abbr.
• GPS display
• Holders of shoulders: Abbr.
• Tobacco and Thunder, for short
• Interstates, e.g.: Abbr.
• Atlas info: Abbr.
• Travel rtes.
• GPS lines
• DOT concern
• Thunder and Abbey, briefly
• Cloverleaf composition: Abbr.
• You may pass on these: Abbr.
• Pikes, e.g.: Abbr.
• Cartographer's lines