Originally i was going to model all the roads and landscape by hand, but i will forget about such reckless endeavour and will just import real-world height and road data.
@person there has never been a better time to learn Blender. Since version 2.8 became easier to use than before and there's plenty of tutoring material to not even need paid courses to learn it
@hideki Sounds like a decent way to go. Maybe I should Blender too