The article, and as of this comment, this thread, don't seem to contain particularly deep (ahem) comparisons of road construction, such as this article from Nature about bridge layer differences between US, Germany, England, and France:
https://www.nature.com/articles/s41598-022-12987-8
For roadbeds, here's Canada versus various EU countries, unfortunately US isn't included:
https://international.fhwa.dot.gov/pubs/pl07027/llcp_07_03.c...
This piece starts with 4 different paving approaches, relatively distinct, yet each having ~40 year lifespans (US old and new, France, Germany):
https://www.sciencedirect.com/science/article/pii/S209575642...
The discussion goes into what might we mean by "how good"?
PS. US road builders better hope the measure is never total quality divided by time-to-construct. They'd have some real ground to cover (ahem):