Yes, they toke the procedural city grow algorithm (basically that’s what the game was in the first place).. and added transportation aspects which makes this a game. Some nice work was done in the graphics side (bridges) and the lane aspects of railroad tracks (snapping) but after that, the math behind this game is kinda weird.
Yes it is working but it is not something for the future. The whole ‘time’ thing needs to be replaced by something that is more realistic so we can build realistic lines that use ‘free’ platforms at stations. And the trains on those lines are actually visually representing the ‘frequency’: stay at station until # ticks to match frequency.