From OpenStreetMap Wiki
|access = exclusion_zone|
|A zone where the access is resticted or forbidden|
|Used on these elements|
|Tools for this tag|
- a zone established by a sanctioning body to prohibit specific activities in a specific geographic area. These zones are created for control of populations for safety, crowd control, or military purposes, and they may be temporary or permanent. Trespassing such areas can be prohibited and punished by law.