Key:seamark:restricted_area:category

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.
Duck sanctuary	duck_sanctuary	A place where ducks and other aquatic birds are protected.
Seahorse sanctuary	seahorse_sanctuary	A place where seahorses and other marine life are protected.
Seagrass sanctuary	seagrass_sanctuary	A place where seagrass vegetation on the seabed is protected.
Kelp sanctuary	kelp_sanctuary	A place where kelp or other marine algae are protected.
Coral sanctuary	coral_sanctuary	A place where corals or the coral reef ecosystem are protected.
Fish sanctuary	fish_sanctuary	A place where fish is protected, often in combination with restriction no_fishing. seamark:restricted_area:restriction=no_fishing
Sea Turtle sanctuary	sea_turtle_sanctuary	A place where sea turtles are protected. Often involves beach areas for protecting the nests of eggs.
Penguin sanctuary	penguin_sanctuary	A place where penguins are protected. Often involves beach areas with penguin colonies.
Dolphin sanctuary	dolphin_sanctuary	A place where dolphins are protected.
Whale sanctuary	whale_sanctuary	A place where whales are protected.
Marine Reserve (MR)	marine_reserve	A place where the marine environment and non-specific fauna or flora is 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.
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.
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.
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.
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.
Maximum speed area or point	maximum_speed	An area or location with a speed limit nomrally specified in knots, e.g. "5 kn" in the information tag: seamark:restricted_area:information=5 kn
Swimming area	swimming	An area in which people may swim and therefore vessel movement may be restricted.
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.
No anchoring	no_anchoring	An are within which anchoring is prohibited.
No fishing	no_fishing	An are within which anchoring is prohibited.
Inshore Traffic Zone	inshore_traffic	A coastal zone between the coast and a traffic seperation scheme, for which restriction of use exist for certain types of motor vessels.
Stranding danger zone	stranding_danger	A coastal zone, with particular danger for stranding.
No diving area	no_diving	An area within which diving is prohibited.
Area to be avoided	to_be_avoided	Area to be avoided for certain reasons or regulations.
Prohibited area	prohibited	An are for which entry is prohibited.
Disengagement area	disengagement	An area which is reserved for disengagement procedures.
Port security area	port_security	An area which is reserved for port security reasons or vessels.
Recreation area	recreation	An area in which recreational activity is taking place.

Compare also Seamarks/INT-1_Section_N

See OpenNauticalChart and OpenSeaMap rendering rules in josm-plugin\SeaChart\src\... s57\S57val.java and render\Rules.java