The resources would be transported... by road? no rover/train/car?
Road will act like:
https://en.wikipedia.org/wiki/Drip_irrigation
What about solid resources like ore?
the drip irrigation system is just a example, every resources will act like a liquid in the big picture.
road A: max 100T min, max 200 distance
road B: max 500T min, max 2000 distance
Train A: max 2000T min, max 15000 distance
Even power should use a system like this (or bandwidth), a more "realistic system".
Let's admit, but then do resources transit through the roads for construction as well ? when you want to build something and need the resources routed to the construction site.