http://www.theatlanticcities.com/arts-and-lifestyle/2014/03/finally-simpsons-updates-springfields-public-transit-system/8667/

Now you can carefully inspect Springfield’s subway map.
Read more at http://www.hitfix.com/tv-tattle#0kOACj7XQmdVSgqO.99

They finally got to fix since the time Bart drove the train and almost destroyed the school.