I thought on railroads X-crossings is not rare, so, where are they in game? Why I should bother with tunnels or overhead bridges, if I just wanna put rails through each other? I cannot connect 2-lines and 2-lines railroads, because of that, rails don’t cross.
Also making street crossings is even a pain. Sometimes you need to lay the road first, sometimes the track then the road. Also yet to make it work with double track.