There is already some proof of concept of trains (http://www.youtube.com/watch?v=Vmp66SmUztQ), but this is still far from transport tycoon.
I believe, that we could use the concept of transport tycoon in this area of the game almost completely.
Player would create stations and specify rout of the train, the train would stop at the station and wait until inserters have nothing to do.
This would help the game a lot for two reasons.
a) I like to play with trains, so I will enjoy the game more, there might be people like me out there
![Smile :)](./images/smilies/icon_e_smile.gif)
b) The game is missing some late game mechanism to transfer big amounts of resources from distant mining sites.
c) Diversity of logistics.