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The Massachusetts Bay Transportation Authority has solved this one! https://en.wikipedia.org/wiki/Massachusetts_Bay_Transportation_Authority#/media/File:MBTA.s

• bewaretheirs 5y ago
  Stockholm as well (with a nearly identical solution!) https://en.wikipedia.org/wiki/Stockholm_metro https://en.wikipedia.org/wiki/Stockholm_metro
  • deleted 5y ago
    [deleted]
  • hammock 5y ago
    In Chicago it's the 'L' (no lettermark that I'm aware of)
    • deleted 5y ago
      [deleted]
  • kalleboo 5y ago
    The MBTA T was actually designed with inspiration from Stockholm!
    • deleted 5y ago
      [deleted]
• qw 5y ago
  Same as Oslo, but with a different color https://no.m.wikipedia.org/wiki/Fil:Oslo_T-bane_Logo.svg https://no.m.wikipedia.org/wiki/Fil:Oslo_T-bane_Logo.svg