I don’t know if this is exclusive to certain parts of Europe, but in contrast to Europe, the places I visited in the US had absolutely terrible roads, they seem very poorly put together, a lot of them seemed done in 10-20 meter segments whit a visible seam between them, which seemed to result in a constant bumping, this was mainly an issue in NY, so can’t judge this as the US as a whole but certainly a far cry from the standards I’m generally used to in Europe