Heavily trafficked areas will change over time.
Small changes concerning balance, gameplay, or graphics.
Map generation and terrain modification.
Seem like a really cool idea if e.g. tanks would almost immediately turn the ground into dirt tiles. This would make driving through a lush forest really visually impactful, as you would leave a trail of destroyed ground behind you.
This would be quite cool.
This seems quite do-able. Vehicles do have weight (and speed).