It sort of appears that privately-erected "end of street" sign might be misleadingly about 200 feet east beyond where the asphalt actually becomes private.  The Koch Drive right-of-way continues on asphalt another 200 feet west until it curves into an unpaved clearing into the woods on the north; the asphalt beyond that point is on private property.  As a compromise: Marking east of the sign as access=yes, no explicit access tag on the 200 feet west, and then beyond that as service=driveway + access=private.  Hope that helps.