You’ve got it right, but let me expand with the power of mathematical modelling. The average vehicle is, for the last 20 years or so, pegged at 4000 lbs when doing road damage calculations. A Chevy bolt EV is around 3800 lbs, or smaller than average, while Tesla vehicles are like you said. The fourth power law is what is used to estimate road damage, and the take away point from that is that all vehicles in and around that 4000 lb range and nothing, notta, moot, compared to large trucks and shipping rigs.
As an example. Take the bolt EV at 3800 lbs, the F150 at 4200 lbs, and the F350 at 6764 lbs.
The bolt and f150 would have 1900lbs and 2100lbs per axle respectively. Applying the fourth power rule the F150 does (2100/1900)^4= 1.49 times the damage of a Bolt EV.
Meanwhile the F350 does , (3382/1900)^4 = 10 times the road damage.
So then, is it true that the F150 and F350 will be made to pay 1.5 and 10 times the registration and fuel taxes of an EV like the Bolt? I have not yet seen this to be true.
Now imagine how much damage a delivery van, or large shipping vehicle does.
The other part of this is environmental damage, are these states going to find a way to charge for carbon emissions proportionally from the gas vehicles? Of course not.
In Canada anyway fuel taxes go into general revenue, not to roads, that’s a whole different line of argument.
You’ve got it right, but let me expand with the power of mathematical modelling. The average vehicle is, for the last 20 years or so, pegged at 4000 lbs when doing road damage calculations. A Chevy bolt EV is around 3800 lbs, or smaller than average, while Tesla vehicles are like you said. The fourth power law is what is used to estimate road damage, and the take away point from that is that all vehicles in and around that 4000 lb range and nothing, notta, moot, compared to large trucks and shipping rigs.
As an example. Take the bolt EV at 3800 lbs, the F150 at 4200 lbs, and the F350 at 6764 lbs.
The bolt and f150 would have 1900lbs and 2100lbs per axle respectively. Applying the fourth power rule the F150 does (2100/1900)^4= 1.49 times the damage of a Bolt EV. Meanwhile the F350 does , (3382/1900)^4 = 10 times the road damage.
So then, is it true that the F150 and F350 will be made to pay 1.5 and 10 times the registration and fuel taxes of an EV like the Bolt? I have not yet seen this to be true. Now imagine how much damage a delivery van, or large shipping vehicle does.
The other part of this is environmental damage, are these states going to find a way to charge for carbon emissions proportionally from the gas vehicles? Of course not.
In Canada anyway fuel taxes go into general revenue, not to roads, that’s a whole different line of argument.
I’m curious and a nerd about this stuff. Why is road damage estimated using a fourth power law? What is the physical reasoning behind that?
Relevant wiki article : https://en.wikipedia.org/wiki/Fourth_power_law
TLDR: we experimented in the 50s and this is the model that fit.