"City and traffic planning" is a thing. You see, roads that were planned for the vehicle traffic of a neighborhood (=here in Germany, like one car a minute tops or lower) are usually built to lower standards than a road that is planned as a transit route.

The asphalt layers are thinner, ground support is spec'd for low and moderate traffic... that means that should such a road be subject to unplanned amounts of traffic, the roads will degrade way faster, particularly if heavy goods traffic comes into play.