Transit Lines and Routes
A - C
Atlantic Avenue Elevated
Beacon Hill Tunnel
Blue Line
Boylston Street Subway
Cambridge Subway
Charlestown Elevated
Commuter Rail
D - F
Dorchester Tunnel and Extension
East Boston Ferries
East Boston Tunnel and Extension
East Cambridge Extension and Viaduct
Everett Extension
Forest Hills Extension
G - H
Granite Railway
Green Line
Haymarket-North Extension
Highland Branch (Riverside Line)
Huntington Avenue Subway
M - R
Main Line Elevated
Mattapan High Speed Line
Meigs Elevated Railway
Northwest Extension
Orange Line
Reading Extension
Red Line
Revere Extension
S - Z
Silver Line
South Shore and Braintree Extensions
Southwest Corridor
Sumner Tunnel
Tremont Street Subway
Washington Street Elevated
Washington Street Tunnel
Winnisimmet Ferry