I would guess it has to do with the size of the vehicle / distance of axles.
It does mean driving style though. Whenever I pass through Germany on the way to Czech Republic to visit my inlaws, I can safely say that there are BMW drivers and other drivers on the autobahn!
It could be related to speed, but ussually when you are working with absolute minimal size of turns, you assume the vehicle is driving slowly.
Wouldn't you feel more safe using the local regulations or are you working on a project in Germany? I think they have rules that change from state to state there... it's a nightmare!
Erwin Edel, Project Lead, Leloup Architecten
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