I knew about the treath, following multiple projects at the tt-forums. but never saw the Server... hmm. I think i'm going to look for it and play on it :)
Here some screens from my savegame 'Tokyo' (Which i'm working on for over a month atm...) of course its almost impossible to rebuild tokyo itself in this game, but it will give you the feeling (when its done...)

The main line to Harataima Station 8 tracks wide for normal trains and lower 2 tracks for Shinkansen (I really like the RailRoad difference!)

The Takatsy line (in the middle) and a level above the end of the Shijomae line. Both tracks are used by metro/commuter trains. Also a bit furhter you can see an other Shinkansen station.
if people are interrested, I can of course post more pics of this japanese stuff.