Heavily trafficked areas will change over time.
Small changes concerning balance, gameplay, or graphics.
Map generation and terrain modification.
Could you provide some screenshots that shows how the game look before and after?
I added one in the multiplayer server. You can see the effects of lots of traffic in the main base!
Thanks! I was thinking rather about some example on how path look in game, not on the map but this also helps. You can see, how this may be useful: "Well, I won't build a refinery here because a lot of people are walking through here."