Trackplan - first version. The layout comprises a two-level metro station, using Jack's biased turnout idea, assuming that it's best to have the biased direction to be straight ahead (hence the funny curves on the lower level part) Some explanation if you can see the tiny numbers on the image: 1: escalators 2: corridors with shops 3: staircases to street level 4: station platforms 5: ticketing areas And some more if you aren't colourblind: Grey lines depict the stations. Red lines are the underground corridors and so on. Green lines are areas which will be cut out - which will be clearly visible to the viewer. (so some parts - mainly the escalator shafts - can only be seen at a certain angle, so the viewer can 'explore' parts of the layout) The layout is based on the use of minitrix tracks, though it's probably doable with any standard tracks. Will try to look at the second-hand market for what's available. Haven't planned a street level yet - including that might be interesting, though modeling it would be at least half the effort (so it'd become something like a Moscow city scene with moving subway cars). I'll try to sketch a more three-dimensional picture tomorrow to give a better idea of the planned layout and the cut-out sections.