> And it's not linear wear per pound, either. If it's not linear then the difference between a 4000 lbs car vs a 3000 lbs one is nothing compared to the damage

> And it's not linear wear per pound, either. If it's not linear then the difference between a 4000 lbs car vs a 3000 lbs one is nothing compared to the damage done by a loaded 80 000 lbs truck. What I notice, on european highways: it's always the rightmost lane that is deformed. The leftmost lane is never deformed. The aquaplanning risks due to water present in two bands on the lane is always on the rightmost lane. Always, always, always. Why? Because the rightmost lane is the one trucks do use. Where I live atm, in the middle of nowhere, there are two things deforming the road: heavy vehicles (I'm not talking about 4000 lbs cars here but tractors / trucks) and... Tree roots. Most of the patches made on the road are due to tree roots lifting the road's concrete.