Related Clues:
- A-train org
- Bygone operator of N.Y.C.'s Second Avenue El
- N.Y.C. commuters' inits
- NYC subway organization
- N.Y.C. line to the Bronx
- Subway whose first line had a terminus at NYC's City Hall
- It has a Bridges and Tunnels div
- Line to Wall Street, for short
- Subway line to Columbia Univ
- Kingston Trio song that inspired the Boston subway's CharlieCard
- L.A. commuter org
- Boston transit inits
- Boston subway system, formerly
- What Charlie rides, in a 1959 hit
- Subway line to Columbia U