How is that a "but"? Did you possibly misread? I said 4th power, not 4x as much. At 4x the per-mile tax rate, a 18-wheeler is still only paying for 1/2400 of it's proportional share of road wear and tear costs. And yes, standing, starting and stopping does damage to the roads. And it does much more damage when you're talking about commercial vehicle. No, restricting roads to lightwieght personal vehicles wouldn't make them last forever, but they would last much longer.
No, I didn't misread, I dismissed your claim altogether as it is unnecessary. Did you misread that?
As for waste, I made no comment whatsoever in regards to it - and neither did you in the comment that I replied to.
I know you didn't mention it which is why I said you ignore it. But I'm pretty clear the comment I made which you replied does in fact mention it. In case reading comprehension is not a strong point or perhaps English is a second language "the money is diluted and used for none road uses like state pensions, mandatory union scale wages, bike paths and residential roads that trucks are never allowed to drive on any ways" is what was said regarding it.
Perhaps I'm the one with the comprehension problem and simply do not see your point the way you wish to express it.
Yes they do, if you're looking at dollars per mile, but if you look instead at dollars per amount of damage they do, as would reasonably be charged by private toll roads, they pay far, far less.
No.. Private toll roads operate in a similar structure to fuel taxes in that they charge more for lighter vehicles and less for larger vehicles than the amount of damage caused by each. I've driven on them before with 5 axle vehicles and while it's quite a bit more expensive than a car, it is still not proportionate as you describe. It's also not far less either.