Hi! I’m the one who created this note. Thanks for replying!

To answer your question: The road is blocked essentially at the marker. There’s enough space between the beginning of the road and the roadblock for a normal-sized car to park and for workers to open it if needed. However, this is an emergency road (”brandväg”) intended for use in case of fire at the oil tanks, so I don’t think it’s practically ever used for regular access.

Regarding the gate shown on the map further down the road: I think that’s accurately mapped. The roadblock at the entrance could be passed on foot (though probably not permitted), and they would have that gate along with the fencing beyond that point.

I agree that access=private makes the most sense in principle. However, there’s a comparison worth noting: this other road (https://www.openstreetmap.org/way/220940394) serves the same facility and is frequently used by trucks loading oil, yet it’s tagged as access=no. Since our road is basically just for emergencies, it wouldn’t make sense to tag it as more accessible than the actively-used truck route, at least in my opinion.