Not a lot of that is very densely populated though, and doesn't need very many roads. You need to compare areas with roughly the same population density, and when I do that, Danmark and the UK and the US completely fail to measure up to Germany.

The average population density of Germany is ~46 times greater than British Columbia. So yeah, obviously you get some long stretches of badly-maintained roads in BC. That wasn't my point, though.

The roads in comparable situations between Denmark and Germany lean very heavily towards Germany having much higher quality. For goodness' sake, they'll put up "Straßenschäden" signs for even tiny little holes in the asphalt. In Denmark, they won't put up a warning sign until someone falls in, and sometimes not even then.