Tag:seamark:type=buoy_lateral
 seamark:type = buoy_lateral
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| Description |
|---|
Maritime navigation buoy, lateral (BOYLAT). 
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| Group: marine navigation |
| Used on these elements |
    |
| Status: de facto |
| Tools for this tag |
How to map
General
Categories
seamark:buoy_lateral:category=see table below
| Mark | Example Symbols | seamark:buoy_lateral:category
|
Where used |
|---|---|---|---|
| Port-hand lateral mark | 
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port
|
Marks the port side limit of the fairway when heading inland. This will be towards the right bank. |
| Starboard-hand lateral mark | 
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starboard
|
Marks the starboard side limit of the fairway when heading inland. This will be towards the left bank. |
| Preferred channel to starboard lateral mark | 
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preferred_channel_starboard
|
Where the fairway divides either way around an obstacle, the primary channel is to the starboard side of this mark. |
| Preferred channel to port lateral mark | 
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preferred_channel_port
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Where the fairway divides either way around an obstacle, the primary channel is to the port side of this mark. |
| Right-hand side of the waterway | 
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waterway_right
|
Marks the limit of the waterway closest to the right bank. |
| Left-hand side of the waterway | 
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waterway_left
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Marks the limit of the waterway closest to the left bank. |
| Right-hand side of the channel | 
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channel_right
|
Marks the limit of a channel closest to the right bank. |
| Left-hand side of the channel | 
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channel_left
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Marks the limit of a channel closest to the left bank. |
| Bifurcation of the waterway | 
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waterway_separation
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Marks the conjunction of two waterways. |
| Bifurcation of the fairway |
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channel_separation
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Marks the conjunction of two channels within a waterway. |
| Turn off at the right-hand side | 
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turnoff_right
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Indicates a turn off at the right-hand side. |
| Turn off at the left-hand side | 
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turnoff_left
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Indicates a turn off at the left-hand side. |
| Danger point or obstacles at the right-hand side | 
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danger_right
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Marks obstacles close to the right bank. |
| Danger point or obstacles at the left-hand side | 
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danger_left
|
Marks obstacles close to the left bank. |
| Junction at the right-hand side | 
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junction_right
|
Indicates a junction at the right-hand side. |
| Junction at the left-hand side | 
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junction_left
|
Indicates a junction at the left-hand side. |
This table is a wiki template with a default description in English. Editable here.
Shapes
seamark:buoy_lateral:shape=see table below
| seamark:buoy_lateral:shape | Definition | Rendering |
|---|---|---|
| conical | The upper part of the body above the water-line, or the greater part of the superstructure, has approximately the shape or the appearance of a pointed cone with the point upwards. | 
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| can | The upper part of the body above the water-line, or the greater part of the superstructure, has the shape of a cylinder, or a truncated cone that approximates to a cylinder, with a flat end uppermost. | 
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| spherical | The upper part of the body above the water-line, or the greater part of the superstructure, has the shape of a part of a sphere. | 
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| pillar | The upper part of the body above the water-line, or the greater part of the superstructure is a narrow vertical structure, pillar or lattice tower. | 
|
| spar | The upper part of the body above the water-line, or the greater part of the superstructure, has the form of a pole, or of a very long cylinder, floating upright. | 
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| barrel | The upper part of the body above the water-line, or the greater part of the superstructure, has the form of a barrel or cylinder floating horizontally. | 
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| super-buoy | A very large buoy, generally more than 5m in diameter. | 
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Colour
There are two international buoyage regions, A and B, between which lateral marks differ. The buoyage region is encoded using the separate attribute "system" (MARSYS). Lateral buoys generally have distinctive shapes (can for port-hand, conical for starboard-hand) or may be a pillar or spar with distinctive topmarks. The buoys and their topmarks are always painted in red, green or red & green horizontal bands.
| Category (CATLAM) | Tags | Definition |
|---|---|---|
| Port-hand Buoy | seamark:buoy_lateral:colour=red - Region A
|
Indicates the port boundary of a navigational channel or suggested route when proceeding in the 'conventional direction of buoyage'. |
| Starboard-hand Buoy | seamark:buoy_lateral:colour=green - Region A
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Indicates the starboard boundary of a navigational channel or suggested route when proceeding in the 'conventional direction of buoyage'. |
| Preferred Channel to Port Buoy | seamark:buoy_lateral:colour=green;red;green - Region A
|
At a point where a channel divides, when proceeding in the 'conventional direction of buoyage', the preferred channel (or primary route) is indicated by a modified starboard-hand lateral mark. |
| Preferred Channel to Starboard Buoy | seamark:buoy_lateral:colour=red;green;red - Region A
|
At a point where a channel divides, when proceeding in the 'conventional direction of buoyage', the preferred channel (or primary route) is indicated by a modified port-hand lateral mark. |
Topmarks (Region A)
| Shape (TOPSHP) | seamark:topmark:shape | Usage | Rendering |
|---|---|---|---|
| Solid cone with vertex uppermost | seamark:topmark:shape=cone, point up |
Starboard lateral marks | 
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| Cylinder (can) mounted vertically | seamark:topmark:shape=cylinder |
Lateral port marks | 
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| Single sphere | seamark:topmark:shape=sphere
|
Safe water marks | 
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| Cross mounted with arms diagonally | seamark:topmark:shape=x-shape |
Special purpose marks | 
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Light
seamark:light:colour=redseamark:light:colour=greenseamark:light:period=*seamark:light:character=*seamark:light:exhibition=*