trainL?

So how long is the train?
Are they all the same length?
Are they all 6 cabs, or 3 joined pairs?
For a total length of L = ?

Is it the same for red, orange, green, blue line?

I'll tell you no already.
Though they are all under the T.

I believe, R and O are subways.
The greenline is a SR... short rail? /forgottheword
and the blue... I've gone to the Aquarium, and I think its a subway too.

They are similar on the inside and outside.
Slight modifications here and there.

Two windows in between doors.
Closedly spaced at the ends, with the front ones taken for... operating tasks.
Three doors for each cab, and different finishes on the insides.

Apparently they were all designed by the chinese,
Built in Mass maybe?