I think trains are underused for a lot of people, simply because conveyors are so useful. They need no power and the only main disadvantage is that they go in one direction. To change this, maybe power could be needed for conveyors? Or, imagine having a "motor conveyor" and a "conveyo...

Not much more to be said than the subject. Like pipe-to-grounds and underground belts, could we have underground rails and subway systems? It would be really cool to have space under rails

Good stuff. If you are allready working un Rails, could you also add tunnels or bridges? It would be very nice to see as an addition to have multilayer trains. i see what you mean lol, but that would be hard i guess, because factorio is 2D. I guess they could make underground tracks like the underg...

wow this looks really hard, tbh i would probably just forget and accidentally craft something by hand later on