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Iala guideline No. #### On Harmonized Portrayal of e-Navigation-related Information Edition 1
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| bet | 5/20 | | Sana | 01.04.2020 | | Hajmi | 3,85 Mb. | | #9751 |
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Name
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Description
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Function
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Example
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1
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NIESS
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Navigational Intension Exchange Support System
(Passing Pattern)
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A radar add-on using display arrows of intended passing pattern of target ships that is shown on demand.
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Reference doc
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WG6/ Tokyo
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Contacts
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Advantage
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Disadvantage
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Recommendation
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Dr. Junji Fukuto
[Japan] National Maritime Research Institute
fukuto@nmri.or.jp
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Receive AIS message from target ship on intended passing pattern on demand. (e.g., 3 miles ahead)
Avoids the need for an additional display.
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Concern about displaying too much information on the radar.
At present, most radar displays have limited ability for displaying additional data.
It clutters the radar.
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It may be beneficial to add data layers on Radar, but this needs to be limited, and data should be carefully selected.
Showing data on demand is good for keeping the radar display clear.
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#
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Name
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Description
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Function
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Example
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2
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VLSS
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Visual Lookout Support System
(Tracked target information)
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Heads-up display supporting information
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Reference doc
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WG6/ Tokyo
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Contacts
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Advantage
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Disadvantage
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Recommendation
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Dr. Junji Fukuto
National Maritime Research Institute
fukuto@nmri.or.jp
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Clear visible target information.
Enhances visual look-out.
Linking real world and digital information.
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Display may be confusing if too much information is shown.
Possible cluttering of visual outlook.
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Level of detail needs to be controlled.
Environmental conditions (e.g. light) needs to be considered.
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#
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Name
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Description
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Function
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Example
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3
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INT-NAV
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Integrated Navigational System
(Tracked Target Information and Video display)
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Combined Video image and collision threats display
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Reference doc
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WG6/ Tokyo
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Contacts
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Advantage
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Disadvantage
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Recommendation
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Dr. Junji Fukuto
National Maritime Research Institute
fukuto@nmri.or.jp
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Links digital and visual information.
Include future trajectory of target ships and collision danger area.
Reduced cluttering by split display.
Possibility to use enhanced night vision.
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Limited use for collision avoidance and planned route.
Need to conduct a cognitive analysis on the effect of using two split screens, simultaneously.
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Additional 'e-Nav' display may be needed.
Stabilization of video image is necessary.
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#
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Name
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Description
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Function
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Example
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4
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Scheduled route based collision danger area display
(Scheduled route and collision danger zone)
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Display of collision threat areas as a radar overlay on scheduled route.
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Reference doc
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WG6/ Tokyo
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Contacts
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Advantage
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Disadvantage
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Recommendation
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Visualize collision danger area.
From a portrayal point of view similar to the Sperry introduced PAD.
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Too much information on the radar.
Radar display limits the ability of displaying additional data.
It clutters the radar, especially if larger or overlapping danger areas are to be displayed.
It is difficult to link danger area to target ship in the portrayal.
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It may be beneficial to add data layers on radar, but this needs to be carefully selected.
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#
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Name
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Description
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Function
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Example
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5
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Display for automatic collision avoidance system
(recommended collision avoidance route)
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Provide recommended collision avoidance route on ECDIS.
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Reference doc
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WG6/ Tokyo
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Contacts
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Advantage
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Disadvantage
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Recommendation
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Provides an alternative option for decision support.
Displayed on the primary navigation tool.
Easy to understand and includes track control portrayal.
Takes in account navigational significant object.
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Potential of “overcrowding” the primary navigation display.
Potential for distraction of navigator due to focus of display on collision avoidance.
Difficult to communicate new route to potential target ships in condensed areas.
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Use of different colour for scheduled, recommended and accepted (for tracking) route.
Ensure recommended route does not overlay important information (e.g. transparency)
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