How long would it take to get rid of the entire NYC subway system?

Question

How long would it take to get rid of the entire NYC subway system?

Answer 1

Why would you want to?

Answer 2

The oil companies are plotting to do exactly that as we speak.  lol

Answer 3

Global warming will raise the East River and the Hudson River to a level that will flood the whole city.  At that point the subways will be full of water.  Will that satisfy you?  Maybe 75 years from now.

Answer 4

it would take forever. nobody wants to get rid of it because it makes so much sense to have. more subway cars equals less surface cars and traffic congestion.