I have a question, as I'm running into space issues, and can't upgrade for now...if I uninstall a DLC/route via steam temporarily, will I still keep the journey completion statistics?
Route data and your progress are saved in 2 different locations. All of your progress is saved in your "My Documents" folder within "My Games" whilst your Add-Ons will be in your "Steam Library" folder.
I am still wondering why there is no general assets folder for US, UK and German assets, this would save a lot of disk space. Right now with every new DLC you get the same assets again and again and again and again. The assets from RT, RSN, MSB and RRO are 95% identical, only the the stations and iconic buildings are different on every route.