Tag:seamark:type=buoy_special_purpose

A special purpose buoy is primarily used to indicate an area or feature, the nature of which is apparent from reference to a chart, Sailing Directions or Notices to Mariners (UKHO NP 735, 5th Edition). Buoy in general: A buoy whose appearance or purpose is not adequately known.

A special purpose buoy delimits a special area, e.g. water-skiing, bathing area, anchor area or ... The buoy then marks the boundary of a restricted area or anchorage

How to map

General

• seamark:type=buoy_special_purpose
• seamark:name=*

Categories

• seamark:buoy_special_purpose:category=*

Shape

• seamark:buoy_special_purpose:shape=barrel
• seamark:buoy_special_purpose:shape=pillar
• seamark:buoy_special_purpose:shape=spar

Colour

• seamark:buoy_special_purpose:colour=yellow
• seamark:buoy_special_purpose:colour=yellow;red;yellow

Topmarks

• seamark:topmark:shape=x-shape
  • seamark:topmark:colour=yellow
• seamark:topmark:shape=cylinder
  • seamark:topmark:colour=red;white;red
  • seamark:topmark:colour_pattern=horizontal

Light

• seamark:light:colour=white
• seamark:light:colour=yellow
• seamark:light:period=*
• seamark:light:character=*

Buoy for swimming area

Node seamark:type=buoy_special_purpose + seamark:buoy_special_purpose:shape=spherical + seamark:buoy_special_purpose:colour=red + seamark:buoy_special_purpose:category=recreation_zone + seamark:buoy_special_purpose:reflectivity=not_conspicuous You may want to add a restricted area also: Area seamark:type=restricted_area + seamark:restricted_area:category=swimming + seamark:restricted_area:restriction=no_entry See also Swimming_and_bathing for additional information.

See also

• Category of special purpose mark
• Seamarks/Buoys