Pollution from tire wear is worse than exhaust emissions?
Maybe offtopic but a surprising bit of extra information regarding wear and vehicles:<p>Road wear scales with the <i>fourth</i> power of axle load, so heavier vehicles do much more damage than one might expect.<p>Take a 40t truck with 5 axles vs. a small car with a weight of 1t and two axles (e.g. VW Polo, maybe an older VW Golf might only weigh 1t as well):<p>(8t axle load / 0.5t axle load) = 16^4, i.e. the truck puts 2^16 (65536) times as much wear on the street as the car.<p>(8t axle load / 1t axle load (SUV)) = 8^4 = 2^12, even comparing it with an SUV and an axle load of 1t each, the truck is still 4096 times worse.<p><a href="https://en.wikipedia.org/wiki/Road#Maintenance" rel="nofollow">https://en.wikipedia.org/wiki/Road#Maintenance</a><p><a href="https://books.google.de/books?id=7Yqxyefv-VAC&pg=PA252&dq=4th+power+of+axle+weight&redir_esc=y&hl=de#v=onepage&q=4th%20power%20of%20axle%20weight&f=false" rel="nofollow">https://books.google.de/books?id=7Yqxyefv-VAC&pg=PA252&dq=4t...</a>