[SpookyZalost]

it's interesting you say that about underground rail, is that just a game limitation?

a couple real life examples that worked well for their time include the NYC Transit system which was originally an underground steam railway before becoming a subway system.
and the london underground.

it is true that a lot of places moved to electric tram/GLR/Subway type systems but I've always thought the idea of using full sized trains underground was kind of neat despite the obvious space issues.

so is that just a mod limitation, a game limitation, or is UGR just not very useful in dense urban landscapes?

looking at all this is making me want to maybe give SC4 another go... but I'm still waiting for flying cars