Here’s the official site blog for The Hobbit from the studios.
There are no trains or choo-choos in Tolkien as as far as I recall. People fly by being picked up by birds (eagles). In "Imajica" there's a very important train (n Dominion 3), and bizarre ways of instantaneous travel according to the theory of "Reconciliation". And, yes, "Imajica" would be a great concept for a resort in Las Vegas. But so would Middle Earth.