Has anyone tried building a subway system?
[#welcome] to the forum, and congrats on your first post. Not sure about sim software, but there are some real models. The only sim subways I know about are in Sim City, but they aren’t very exciting.
A while back we had a fun discussion about the New York City subways. Here’s the link. If you post to it it will come back to the front page.
http://www.trains.com/community/forum/topic.asp?TOPIC_ID=12951