Related Clues:

• See 103-Down
• Some urban railways
• Noisy rollers
• Subway cousins
• Dull finish
• Higher form of transportation?
• Some rail transit
• Some urban lines
• High-level transit
• Some railway systems
• Right-angle shapes
• 2002 champion at 62-Across
• Subway systems
• Trains over the road
• Letters after kays