detailed roads offen have unnatural pumps, see attached pictures.
Dome of them can make driving and taxiing on roads problematic, crash-prone or impossible, depending on the vehicle/ aircraft and the circumstances, where in reality it would be physically possible.
Settings are to use detailed roads and railway, OSM buildings, high rendering quality, no auto generated buildings, no auto generated vegetation, photoscenery.
Location in the attached example is here (Albertplatz north road intersection, Dresden, Germany).
Flightgear version: 2020.4, git checkout, commit hash 4e432b3f8, checked out on 2021-05-02.
Road fragment in the air in Innsbruck, on the road to Hungerburg (ca. → here):
Last edit: Drei Eck 2021-05-05