I’m trying to figure out how to make an intercity rail connection between two of my cities. I just can’t seem to figure out where to do it. I know there are mods for rail cars and such that are props that don’t move. I’m trying to figure out how to make the intercity rail connection for purposes of trading items back and forth between my cities. I’m also trying to figure out how to connect the highways between cities. It does appear as if I don’t really have to do anything other than build Expressways or Highways leading from the map with the proper map edge connector. I did test out trading items between cities on the same and on different continents and it didn’t seem to matter. Perhaps I’ve done all I need to and don’t have to sweat out designating a highway as leading to a particular city. I did that test before building the big airports.