One might note that the Boston subway has spawned another song, viz. Tom Lehrer's Red Line Song. I heard of its existence some years ago, but despaired of finding its text, so I wrote my own, which once I happened on the original I ended up preferring;

H is for our alma mater Harvard,
C for Central Square and City Hall,
K for Kendall, half a mile from nowhere*,
C for Charles Street Station, standing tall,
P for Park Street -- change for Cleveland Circle,
W for Washington: You see,
Put them all together, etc.

*I.e., MIT.