Off road / Unmaintained road should not have the unpaved option
The "Off-road / Unmaintained road" type is almost always unpaved, and in cases where it is paved, it is not to be treated as paved. Thus the "Unpaved" attribute of such a segment is not needed. Moreover, it may sometimes cause an unwanted route when there are some segments that have the unpaved attribute whereas some don't have that attribute.
I suggest removing that attribute from that type of segment.