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Public-images-osm logo.svg seamark:restricted_area:category
Categories of restricted area Edit this description in the wiki page. Edit this description in the data item.
Group: marine navigation
Used on these elements
may be used on nodesshould not be used on waysmay be used on areas (and multipolygon relations)should not be used on relations (except multipolygon relations)
Documented values: 6
Status: in use

Categories of restricted area

Restricted areas (CATREA)

Category seamark:restricted_area:category Definition
Offshore safety zone safety The area around an offshore installation within which vessels are prohibited from entering without permission.
Nature reserve nature_reserve A tract of land managed so as to preserve it's flora, fauna, physical features, etc.
Bird sanctuary bird_sanctuary A place where birds are bred and protected.
Game reserve game_reserve A place where wild animals or birds hunted for sport or food are kept undisturbed for private use.
Seal sanctuary seal_sanctuary A place where seals are protected.
Degaussing range degaussing_range An area, usually about two cables diameter, within which ships' magnetic fields may be measured sensing instruments and cables are installed on the sea bed in the range and there are cables leading from the range to a control position ashore.
Military area military An area controlled by the military in which restrictions may apply.
Historic wreck area historic_wreck An area around certain wrecks of historical importance to protect the wrecks from unauthorized interference by diving, salvage or deposition (including anchoring).
Navigational aid safety zone navigational_aid_safety An area around a navigational aid which vessels are prohibited from entering.
Minefield minefield An area laid and maintained with explosive mines for defence or practice purposes.
Swimming area swimming An area in which people may swim and therefore vessel movement may be restricted.
Waiting area waiting An area reserved for vessels waiting to enter a harbour.
Research area research An area where marine research takes place.
Dredging area dredging An area where dredging is taking place.
Fish sanctuary fish_sanctuary A place where fish are protected.
Ecological reserve ecological_reserve A tract of land managed so as to preserve the relation of plants and living creatures to each other and to their surroundings.
No wake area no_wake An area in which a vessels' speed must be reduced in order to reduce the size of the wake it produces.
swinging area swinging An area where vessels turn.
Water skiing area water_skiing An area within which people may water ski and therefore vessel movement may be restricted.
Environmentally Sensitive Sea Area (ESSA) essa A generic term which may be used to describe a wide range of areas, considered sensitive for a variety of environmental reasons.
Particularly Sensitive Sea Area (PSSA) pssa An area that needs special protection through action by IMO because of its significance for regional ecological, socio-economic or scientific reasons and because it may be vulnerable to damage by international shipping activities.