Generally the wear on tires is proportional to the wear on roads, since both are effectively grinding against each other with grit as the grinding medium in between. It would be harder to find a more accurate way to measure an individual vehicle’s contribution to road wear, given that weight is such a large factor.
Surface wear on roads from tire contact is not a concern, the damage is done due to a combination of compression cycles (the 4th power law) and weather. The 4th power law being that road wear is equal to the 4th power of the axel load.
Your tire wear rate is based on so many unique factors, with vehicle weight being a relatively minor one. Force of accel/decell/turning, suspension tuning, tread, rubber compound, road material, etc.
Your tire rubber is not grinding away the road surface. It’s wild that I even have to say that.
None of this is accurate:
Surface wear on roads from tire contact is not a concern, the damage is done due to a combination of compression cycles (the 4th power law) and weather. The 4th power law being that road wear is equal to the 4th power of the axel load.
Your tire wear rate is based on so many unique factors, with vehicle weight being a relatively minor one. Force of accel/decell/turning, suspension tuning, tread, rubber compound, road material, etc.
Your tire rubber is not grinding away the road surface. It’s wild that I even have to say that.