4 ms·

A rough way to think about road wear is the weight over one axle to the fourth power times the number of axles.

• na85 7y ago
  That gives you a quantity of force^4. How does that translate to road wear?
  • cheerlessbog 7y ago
    Empirical studies apparently find road wear matches a power law. Although it seems the exponent varies. Here's a survey https://www.nzta.govt.nz/assets/resources/603/RR-603-The-relationship-between-vehicle-axle-loadings-and-pavement-wear2.pdf https://www.nzta.govt.nz/assets/resources/603/RR-603-The-rel...
    • na85 7y ago
      That's for rutting damage, which doesn't necessarily translate linearly to particulate formation/flaking.