>>1965471Wait, it's even more disappointing than that.
All of the parts in gray were dug up in the 1970s, all they have to do is put down rails, hook it up to electricity, and build some stairs and elevators. Somehow doing that and digging out the tiny bits in blue and orange and yellow will take 8 years and God knows how many billions.
(I posted and deleted a map where I accidentally drew over Lexington Avenue, oops)