Railway

• United Kingdom:
  • Circle line (London Underground)
  • Fife Circle Line
    Fife Circle Line
    The Fife Circle is the local rail service north from Edinburgh. It links all the towns of south Fife and the coastal towns along the Firth of Forth before heading to Edinburgh.-Service:...
    
    , Scotland
• City Circle Line, Copenhagen, Denmark
• Circular Line (TRTS)
  Circular Line (TRTS)
  The Taipei Metro Circular Line is an elevated, medium-capacity rapid transit in Taipei and New Taipei, Taiwan. It is currently under construction with the first section scheduled to open in 2015...
  
  , Taiwan
• Circle MRT Line
  Circle MRT Line
  The Circle Line is Singapore's fourth Mass Rapid Transit line, operated by SMRT Corporation. This underground line is currently long with 28 stations and is fully automatically operated...
  
  , Singapore
• Circle Line of Chicago 'L, proposed rapid transit line in Chicago
• Circle line
  Koltsevaya Line
  The Koltsevaya Line , , is a railway line of the Moscow Metro. The line was built in 1950-1954 encircling the central Moscow, and became crucial to the transfer patterns of passengers....
  
   of Moscow Metro
• Ring Rail Line, Finland
• Ring Line (Oslo)

See also

• Beltway or ring road, the circumferential motorway.
• List of ring roads