I think this number of "99%" is only valid for the large US suburbs which are way easier to navigate than a typical small town in Germany/Europe. Over here we h

I think this number of "99%" is only valid for the large US suburbs which are way easier to navigate than a typical small town in Germany/Europe. Over here we have so many narrow streets, millions of pedestrians and bicycles, construction zones and so on. More often than not it is difficult for a human to figure out what is going on so it will be much harder for a car to do the same.