Hi all, thanks for reporting this problem! There is of course no "tram"=no_go. The reason why this is happening is the less common surface=chipseal tag. (I think there is no significant occurrence of this surface in Europe, not even creators of the original brouter considered it). Also handling of defaults used to be less than ideal in the car profiles. Today I reviewed surface handling in all car profiles (Publicly visible are just 2 profiles). After new tiles are produced, the change will eventually make it to the public environment - after testing internally (By us).