I've added two nodes, both of which have pictures:

https://www.openstreetmap.org/node/12626336200 is an "Unsuitable for Motors" sign pointing south.  There's a picture of the sign.

https://www.openstreetmap.org/node/12626377501 is a place where there is _no_ sign on the track pointing east.  There's a picture showing that there is no sign.

Does that answer your question?
