I wonder how many lines are still operating in Boston.
I believe N.I.M.B.Y.S.sunk the re opening of the Watertown line & I believe Arborway is service suspended.
I believe the Ashmont-Mattapan line was once connected to the main system,as photos in the book,P.C.C.Car,the Car that fought back,Vol2,shows street running to Mattapan.
I have a 1962 Boston Map<from Modern Traway> showing tracks to the Everett shops.
Gary