[tzs]

If we go by the fourth power rule that is usually cited, it is kind of shocking how fast damage goes up with weight.

For example if you replaced a typical 40 ft transit bus containing 60 passengers going from point A to point B with those same 60 passengers in 60 subcompact electric SUVs, such as Hyundai Kona SELs, the 60 cars going from A to B would do do about 1% of the road damage that the bus would.

This also leads to an interesting possibility. Suppose you had a large city where everyone was driving the ICE version of the Hyundai Kona SEL, and then they all switched to the electric version. The electric version is ~500 pounds heavier than the ICE version, and by the 4th power rule would cause about 70% more road damage than the ICE version.

However, gasoline use in that city would plummet, and so the number of miles driving by the gas tanker trucks that supply the gas stations would plummet to.

Those trucks are way way way heavier than cars. The reduction in road damage from those trucks driving less would in many cases outweigh the increase in damage from everyone switching to a car that weighs ~500 pounds more.