Edited to thumbs down. Road upgrades in the way they are implemented are a game ruining experience. The scale of the maps in these modules is on the order of hundreds of kilometres at a minimum. Road nodes in busy areas are upgraded at something like 5 to 10m intervals and don't have their demands combined. Made worse by the fact that the UI is so clunky that actually clicking on the ends of those nodes can sometimes be impossible and leaving you with a permanently borked road.