Hello StreetSurveyor, during your survey have you encountered this sign https://commons.wikimedia.org/wiki/File:Buttonwoods_private_community_sign.jpg which says "private roads, no trespassing" and have you decided that somehow this sign should be interpreted as "access=permissive", or have you not encountered this sign? It is located where Mill Wheel Rd branches off Buttonwoods Av. so it applies at least to everything South-East of that intersection.