This is one of my favorite mods for this game, but one thing that is really annoying is the subways. The fact that they all share the same name is the biggest one, although I assume that they have to given they do at all, but it would be unimaginably nice if they were able to be renamed. The second one is the fact that its very annoying to set up a subway with multiple stops for multiple trains because rail signals don't carry between. This I feel could be solved by having a different rail signal item that you can attach to a subway, which when placed on the other surface will allow the signals to carry over. So for example if a train goes down and stops, and another train which goes there can't go through because there's one stop and one path, the signal on the subway will now turn the signal on the surface on the other floor red and that train will stop before entering, and once the first train leaves the signal will turn green and no crashes will happen. This is more or less something required I think because trains can't know if another train is moving and thus both might enter/exit at the same time which will cause them to crash.

I have this on my list, but there's no practical solution (engine limitations) except that the subway can transfer vitrify circuit signals and the player has to setup rail signals by hand.

Regarding the subway names I wanted a system without configuration. I'll think about that. You can circumvent that by placing stops in front of the subways with no wait condition to make trains passing that stop.