urban rail loop line
C6366
concept
An urban rail loop line is a circular or near-circular transit route within a city that connects multiple districts and intersecting lines, allowing continuous, bidirectional travel without a terminal endpoint.
Observed surface forms (1)
- circle metro line ×1
Instances (2)
- JR Yamanote Line
- Bolshaya Koltsevaya Line via concept surface "circle metro line"