When one speaks of signs, one must go beyond the perception of "ownership control" which implies a prohibition on entering place X or Y. Here's a simple question: How can we help visitors, spectators or customers negotiate a site or an area that’s unknown to them? Imagine, for example, families who go to a large park or a nature reserve for the first time. They don’t know where to go, they don’t know how to find help if they need it, they can’t even find a toilet for the children, etc.
The purpose of the property control signs is to help visitors find their way in a park, a museum, a large area, a company, a large farm, a reserve, an amusement park, etc. The property control signs are therefore of vital importance. Moreover, they offer visitors a feeling of comfort and wellbeing. Facilitating the movement of visitors in a large area also ensures their protection. One lives in a rather unstable world where a misfortune can occur at any time. The property control signs also guarantee that rescue services will be able to find their way quickly and rescue people in distress if necessary.