Proposed features/Buoy

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Buoy
Status: Abandoned (inactive)
Proposed by: *
Tagging: man_made=buoy


This proposal is for a set of tags to describe buoyage in the sea, rivers, lakes, etc.

Required Tags

All buoys using this tagging scheme should be tagged with man_made=buoy

General Tags

Some general tags which are used across many other types of object are used to tag buoys:

Key Value Element Comment Example Icon
name * Node Name of the buoy  
ref * Node Reference number for the buoy  
source * Node Where did the data come from?  
website * Node Website with information about this object. For weather buoys, etc. it might publish the current weather data.  

Specific Tags

Tags which aren't shared with other OSM features are prefixed with the "buoy:" namespace.

Key Value Element Comment Example Icon
buoy lateral Node The buoy is a lateral marker  
buoy cardinal Node The buoy is a cardinal marker  
buoy isolated_danger Node The buoy is an isolated danger marker (e.g. placed in shallow water)  
buoy safe_water Node Safe water marker.  
buoy special Node Special mark.  
buoy race Node The buoy is a race marker  
buoy tsunami Node Tsunami detector  
buoy mooring Node Mooring buoy  
buoy weather Node Weather buoy  
buoy:lateral port Node Marks the port side of the channel. Also see Relations section, below.  
buoy:lateral starboard Node Marks the starboard side of the channel. Also see Relations section, below.  
buoy:lateral port_bifurcation Node Marks a split in the channel, with the buoy on the port side of the primary channel. Also see Relations section, below.  
buoy:lateral starboard_bifurcation Node Marks a split in the channel, with the buoy on the starboard side of the primary channel. Also see Relations section, below.  
buoy:cardinal north Node Deeper water is on the North side of the buoy.  
buoy:cardinal south Node Deeper water is on the South side of the buoy.  
buoy:cardinal east Node Deeper water is on the East side of the buoy.  
buoy:cardinal west Node Deeper water is on the West side of the buoy.  
buoy:seasonal An ISO8601 time interval Node Specifies that the marker is removed for part of the year. The times when it is present is specified in ISO8601 format and would usually not include a year.  
buoy:colour * Node The colour of the buoy. For lateral markers, areas where IALA system A is in use will have red port markers and green starboard markers whilst areas using IALA system B will have green port markers and red starboard markers.  

Relations

Lateral Markers

All the lateral buoys marking a channel should be put in a relation and tagged with buoy:type=lateral_channel. This allows the position of the channel to be unambiguously determined without needing a reference direction for the local lateral bouyage. Channels with bifurcation buoys down the middle should be treated as two separate channels, with the bifurcation buoys being members of both.

Considerations

  • The Americans swap red and green for lateral buoys so some care must be taken when rendering them on the map to avoid confusion.
    • Add a colour tag to each one? Ojw 11:52, 3 April 2008 (BST)

  • Lateral buoys are placed with respect to the "upstream" direction (i.e. the port buoy is on the port side when heading upstream or into the harbour and on the starboard side when heading downstream or out of the harbour). Maybe a relation would be useful for grouping a set of starboard and port markers together, making it clear where the channel is.

  • There should probably be a method of specifying how big a buoy is and its' light flashing sequence if it is unusual. Coordinate with Talk:Tag:man made=lighthouse.

-- (Apologies if this looks untidy - my first edit here)

  • I agree with OJW. Relevant info that applies to buoys includes:
    • Character (abbreviated description of light colour/frequency/grouping)
    • Range (Nominal range of light, specifying what units (usually nautical Miles in the systems ** I've seen - UK and Irish)
    • RTE (Radar Target Enhancer)
    • Fog Signal (horn/whistle/none)
    • Body (or Shape) (can, nun, spar, ...)
    • Daymark (There are standard colours for cardinals and laterals)
    • RACON (RAdar BeaCON), which responds with a morse letter to help radar identification)
    • System (IALA A or IALA B) --Gipszjakab 20:05, 2 June 2008 (CET)

--Dolphin3900 23:33, 3 April 2008 (BST)


Yes, there are some tags on the lighthouse page that might be useful here (although they're currently in a "navaid:sea" namespace), eg.

  • lighting:sequence = Q Fl (3) 12s
  • navaid:sea:buoy_diameter = 1200mm
  • navaid:sea:radar_target_enhancer = yes
  • dgps = yes
  • navaid:sea:daymark = CAN

-- Ojw 12:24, 6 April 2008 (BST)

p.s. there is a library to interpret those flash sequences. Ojw 12:26, 6 April 2008 (BST)


Would it be worth dropping the ":type" from each of those tags to save typing? e.g.

  • buoy=lateral
  • buoy:lateral=starboard
  • buoy:cardinal=north

It's important to know if the buoy colour implemented in IALA A or IALA B system. What about to add special tag "buoy:system" with a value of "A" or "B". --Gipszjakab 20:17, 2 June 2008 (CET)

This is already covered by the buoy:colour tag. Steve Hill 12:50, 3 June 2008 (UTC)
  • And how about the SIGNI system (Signalisation des Voies de Navigation Interieure) used for inland waterways?

References