Correct, but up to a point: trends based on past data on road wear are predicated on passenger/private motor vehicles the size of a family sedan/saloon crossover-equivalent not leaping upward by an order of weight class which puts them in the camp of, say, a Ford Excursion 25 years ago.
Unless one accounts for the increased per-unit mass, extended to millions of such units moving over the same patch of road, then relying on past data only gets one partway to seeing the big picture whilst looking ahead. This is why some passageways, like bridges, have a gross weight cap on what can cross it safely: vehicular weight, more than frequency of the vehicles using it, can outstrip the weight for which it was engineered to accommodate.
Meanwhile, neither the quantity of tractor-trailer vehicles nor their weight classes have changed much during that time, so those data are, largely, unchanged (and predictable over time). They’re also regulated heavily by
weight class.
Put another way: remember the I-35W bridge collapse in Minneapolis, as multiple ICE cars and a few tractor-trailers were all atop it, moving slowly, in 6pm rush-hour traffic? Now kick up the quantity of passenger vehicles whose tare weights are an order higher for the same physical dimensions (whose dimensions tend to dictate how they’re classified, marketed, and sold). Expect more bridges to buckle, even fail, from being unable to cope with that much more total weight than for what they were designed to cope — and this is key —
at time of new-build construction. Now account for decades of wear, tear, and environmental degradation.
Expect more single points of failure with roads and bridges as ICE vehicles are overtaken by EVs as a dominant mode of vehicular conveyance, assuming consumers don’t downsize the class of vehicle to match or trim down from their last ICE vehicle. With Americans, at least, this is highly unlikely unless external conditions make it a fundamental necessity.
That’s unfortunate.
You ought to take some time and look into how other countries and economic zones do things to better understand why things exist in the U.S. as they do. This includes economic zones inside which the U.S. are one of the partners, such as USMCA (
fka., NAFTA). Vehicular regulations around weight, signalling, emissions, crash performance, and so on, for example, are no longer as localized as they were in 1970 or even 1990. It would do one well to open one’s perspective beyond one’s borders to better understand bigger-picture questions.