Since these are practically the only instances of forest roads tagged with access=private in Nordmarka, I assume this is a tagging mistake.
Anybody to confirm? Any recommendation for proper tagging?
I would think its a tagging mistake. There have been som big discussions on how to tag forest roads (unclassified/service/track), and a lot of people use access=private for roads that are privately maintained.
I would assume, if there are no gates or fences that the area is freely accessible. Especially for footrouting.
Thank you for your suggestions,
I will tag these forest roads with motor_vehicle=private, except for the access roads to Vikkelihytta and Honsjøhytta where I will use motor_vehicle=permissive instead.
I think you are right: in this specific case it probably makes more sense to remove the access restrictions altogether.
The initial value “access=private” looks like a tagging mistake (if I am not mistaken “access=private” contradicts the Norwegian public right of access for non-motor vehicles in forest areas) and other values like “motor_vehicle=private” or “motor_vehicle=permissive” cannot be ascertained without a survey.