Материал: SN_Circ243-Rev.2 - Guidelines For The Presentation Of Navigation-Related Symbols Terms And Abbreviations
E
4 ALBERT EMBANKMENT
LONDON SE1 7SR
Telephone: +44 (0)20 7735 7611 Fax: +44 (0)20 7587 3210
SN.1/Circ.243/Rev.2
14 June 2019
GUIDELINES FOR THE PRESENTATION OF
NAVIGATION-RELATED SYMBOLS, TERMS AND ABBREVIATIONS
1The Maritime Safety Committee, at its ninety-third session (14 to 23 May 2014), approved the Amended Guidelines for the presentation of navigational-related symbols, terms and abbreviations (SN/Circ.243/Rev.1) prepared by the Sub-Committee on Safety of Navigation (NAV) at its fifty-ninth session (2 to 6 September 2013) and encouraged their use for all shipborne navigational systems and equipment.
2The Sub-Committee on Navigation, Communications and Search and Rescue (NCSR), at its sixth session (16 to 25 January 2019), with a view to harmonizing the requirements for the presentation of navigation-related information on the bridge which would ensure that all navigational displays adopt a consistent human-machine interface philosophy and implementation, agreed to revised Guidelines for the presentation of navigation-related symbols, terms and abbreviations.
3The Maritime Safety Committee, at its 101st session (5 to 14 June 2019), concurred with the Sub-Committee's views, and approved the revised Guidelines for the presentation of navigation-related symbols and the revised Guidelines for the presentation of navigation-related terms and abbreviations, as set out in annexes 1 and 2, respectively.
4This circular does not revoke SN.1/Circ.243/Rev.1, however, for the purpose of applying resolutions:
.1 MSC.191(79), the Guidelines in SN.1/Circ.243/Rev.1 are to be applied to:
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radar equipment, electronic chart display and information systems |
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(ECDIS) and integrated navigation systems (INS) installed before |
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January 2024; and |
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all other navigational displays on the bridge of a ship installed before |
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July 2025; and |
.2 MSC.191(79), as amended by resolution MSC.466(101), the Guidelines in SN.1/Circ.243/Rev.2 are to be applied to equipment installed on or after the dates specified in paragraph 4.1 above.
5 Member States are invited to bring the revised Guidelines to the attention of all parties concerned.
***
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SN.1/Circ.243/Rev.2
Annex 1, page 1
ANNEX 1
GUIDELINES FOR THE PRESENTATION OF NAVIGATION-RELATED SYMBOLS
1 Purpose
The purpose of these Guidelines is to provide guidance on the appropriate use of navigation-related symbols to achieve a harmonized and consistent presentation.
2 Scope
The use of these Guidelines will ensure that the symbols used for the display of navigation-related information on all shipborne navigational systems and equipment are presented in a consistent and uniform manner.
3 Application
These Guidelines apply to all shipborne navigational systems and equipment. The symbols listed in the appendix should be used for the display of navigation-related information to promote consistency in the symbol presentation on navigational equipment. The symbols listed in the appendix should replace symbols which are currently contained in existing performance standards. Where a standard symbol is not available, another symbol may be used, but this symbol should not conflict with the symbols listed in the appendix.
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SN.1/Circ.243/Rev.2
Annex 1, page 2
APPENDIX
NAVIGATION-RELATED SYMBOLS
Table 1: Own ship symbols
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Description |
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Double circle, located at own ship's |
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reference position. |
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Own ship |
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Use of this symbol is optional, if own |
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ship position is shown by the |
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combination of Heading Line and |
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Beam Line. |
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True scale outline located relative to |
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own ship's reference position, oriented |
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Own ship true |
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along own ship's heading. |
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scale outline |
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Used on small ranges/large scales. |
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Cross, located on a true scale outline |
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Own ship radar |
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of the ship at the Physical location of |
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the radar antenna that is the current |
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antenna position |
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source of displayed radar video. |
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Solid line thinner than the speed |
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Own ship |
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vector line style, draw to the bearing |
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ring of fixed length, if the bearing ring |
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heading line |
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is not displayed. Origin is at own |
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ship's reference point. |
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Solid line of fixed length; optionally |
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Own ship beam |
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length variable by operator. Midpoint |
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at own ship's reference point. |
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line |
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Dashed line – short dashes with |
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spaces approximately twice the line |
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width of heading line. |
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Time increments between the origin |
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Own ship speed |
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and endpoint may optionally be |
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marked along the vector using short |
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vector |
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intersecting lines. |
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To indicate Water/Ground stabilization |
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optionally one arrowhead for water |
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stabilization and two arrowheads for |
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ground stabilization may be added. |
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Own ship path |
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A curved vector may be provided as a |
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path predictor. |
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prediction |
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SN.1/Circ.243/Rev.2 |
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Annex 1, page 3 |
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Topic |
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Symbol |
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Description |
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Thick line for primary source. Thin line |
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for secondary source. |
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Own ship |
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Optional time marks are allowed. |
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past track |
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Table 2: Tracked Radar Target Symbols |
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Description |
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Solid filled or unfilled circle located at |
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target position. |
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The course and speed vector should be |
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displayed as dashed line, with short |
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Tracked target |
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dashes with spaces approximately twice |
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the line width. |
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including |
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Optionally, time increments may be |
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dangerous target |
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marked along the vector. |
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For a "Dangerous Target", bold, red |
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(on colour display) solid circle with |
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course and speed vector, flashing until |
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acknowledged. |
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Circle segments in the acquired target |
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Target in |
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state. |
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For automatic acquisition, bold circle |
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acquisition state |
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segments, flashing and red (on colour |
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display) until acknowledged. |
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Lost target |
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Bold lines across the circle, flashing until |
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acknowledged. |
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Selected target |
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A square indicated by its corners |
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centred around the target symbol. |
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Target past |
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Dots, equally spaced by time. |
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positions |
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R |
Large R adjacent to designated tracked |
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Tracked reference |
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target. |
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target |
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Multiple reference targets should be |
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marked as R1, R2, R3, etc. |
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