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0 pointsdmoy2y ago0 comments

In this case it's even what, 7000 or 8500lbs car? Which is even crazier when you consider road wear scales on the 3rd or 4th power of weight.

(Edit: 4th power, damn) https://en.m.wikipedia.org/wiki/Fourth_power_law

So a 8500 car does 64x as much road wear as my small sedan.

0 comments

infecto2y ago

Wrong

https://twitter.com/ajisuzu1/status/1681123111364620294?s=46

TLDR; From a road wear perspective there is no real difference between a heavy EV and a lightweight smaller ICE.

Edit: Not sure why I get downvoted so heavily. It is just a fact that the weight difference between an EV and comparable ICE has no measurable difference to road wear.

People like the above poster just like to touch on the fourth power law but not how the calculations actually work.

ESAL is part of that calculation. A 5 axel semi has a ESAL of 2.35, a dumptruck ~4, a 3.5ton vehicle .004, a 3ton vehicle .002. When we are talking about the difference in hundreds of pounds between EV and ICE, there is no wear difference.

huytersd2y ago

No one can read that thread.

sarchertech2y ago

TLDR paved roads are generally designed to handle large trucks and construction equipment. On such roads passenger vehicles (even heavy electric vehicles) have a negligible impact on pavement life.

The difference in road wear between a 2k lbs. vehicle and an 8k lbs vehicle is too small to matter.

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