Iala guideline No. #### On Harmonized Portrayal of e-Navigation-related Information Edition 1

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Formerly e-NAV12/output/31

IALA Guideline No. ####
Harmonized Portrayal of

e-Navigation-related Information

Edition 1

(June 2013)

10, rue des Gaudines

78100 Saint Germain en Laye, France

Telephone: +33 1 34 51 70 01 Fax: +33 1 34 51 82 05

e-mail: contact@iala-aism.org Internet: www.iala-aism.org

AISM Association Internationale de Signalisation Maritime IALA

International Association of Marine Aids to Navigation and Lighthouse Authorities

Document Revisions

Revisions to the IALA Document are to be noted in the table prior to the issue of a revised document.


Page / Section Revised

Requirement for Revision

Table of Contents

Table of Contents 3

Table of Contents 3

Harmonized Portrayal of e-navigation-related Information 10

Harmonized Portrayal of e-navigation-related Information 10

1Introduction 10

2Background 10

3Scope 10

3.1Core Objectives 11

facilitate safe and secure navigation of vessels having regard to hydrographic, meteorological and navigational information and risks; 11

facilitate vessel traffic observation and management from shore/coastal facilities, where appropriate; 11

facilitate communications, including data exchange, among ship to ship, ship to shore, shore to ship, shore to shore and other users; 11

provide opportunities for improving the efficiency of transport and logistics; 11

support the effective operation of contingency response, and search and rescue services; 11

demonstrate defined levels of accuracy, integrity and continuity appropriate to a safety-critical system; 11

integrate and present information on board and ashore through a human-machine interface which maximizes navigational safety benefits and minimizes any risks of confusion or misinterpretation on the part of the user; 11

integrate and present information onboard and ashore to manage the workload of the users, while also motivating and engaging the user and supporting decision-making; 11

incorporate training and familiarization requirements for the users throughout the development and implementation process; 11

facilitate global coverage, consistent standards and arrangements, and mutual compatibility and interoperability of equipment, systems, symbology and operational procedures, so as to avoid potential conflicts between users; and 11

support scalability, to facilitate use by all potential maritime users. 11

While these core objectives appear to be straight-forward, what constitutes e-navigation information and how this information should be portrayed is more subjective. As it pertains to this Guideline, the "e" in e-navigation refers to "...electronic means to enhance berth to berth navigation and related services." As such, the intent is to provide practical guidance on how to achieve a "harmonized presentation" of e-navigation information both aboard and ashore. 11

3.2Basic Premise and Caveats 11

4Definitions 12

5General references 15

General Requirements 15

Arrangement of information (e.g., use separate areas for operational display and menu/control functions) 15

Readability (for alphanumeric text and icons) 15

Colours and intensity 15

Symbols 15

Colour coding 15

Integrity marking 15

Alarms and indications (appropriate use of red, yellow, green colours) 15

Presentation modes 15

Presentation of Operational Information 15

Own ship 15

Charted information 15

Radar information 15

Target information (radar and AIS) 15

Graphical presentation 15

Operational alarms 15

Operational Displays 15

Multi-function display 15

Radar (including display of chart and maps on radar) 15

ECDIS (including display of radar and additional information) 16

User selected (task orientated) presentation 16

Physical Requirements 16

Display size 16

Screen size, resolution and viewing angle 16

Colours 16

Navigating and manoeuvring 16

Monitoring * 16

Manual steering (Helmsman's workstation) 16

Docking (bridge wing) 16

Planning and documentation * 16

Safety * 16

Communications * 16

Annex A - The symbols from SN/Circ.243 are reproduced and expanded upon. 17

Annex B - The terms and abbreviations from SN/Circ.243 are reproduced and expanded upon. 17

Annex C - Additional guidance on display and dialogue design from MSC/Circ.982 is provided. 17


6.1Voyage Requirements 17

Strategic overview is associated with maintaining overall situational awareness within the surrounding areas. This can include both monitoring and active engagement. 17

Tactical involves more direct action and decision-support within the immediate or designated area. 18

6.2Situation Needs 18

Current situation includes the various phases of navigation during a voyage or can be related to the prevailing conditions. Examples of different navigation phases include open-ocean, coastal, and approach. Prevailing conditions include, daytime vs. nightime transits, calm vs. stormy weather conditions, good vs. poor visibility, light vs. heavy vessel traffic, etc.) 18

Regardless of the current situation, the Task-at-Hand can be the determining factor in what information is crucial to making informed decisions. This includes time-critical information necessary for grounding avoidance, collision avoidance, or maintaining overall situational awareness. 18

6.3Shipborne-perspective 18

6.4Shore-based 18

6.5Levels of information 18


Radar 19

AIS 19

INS 19

GMDSS (or equivalent) 19

ACCSEAS (Accessibility for Shipping, Efficiency, Advantages and Sustainability) 19

BLAST (Bringing Land and Sea Together) 19

EfficienSea (Efficient, Safe and Sustainable Traffic at Sea) 19

MARNIS (Maritime Navigation and Information Services) 19

MONALISA Project (Motorways & electronic Navigation by Intelligence at Sea) 19

MEH (Marine Electronic Highway) 19

St. Lawrence River (Canada) e-Navigation Testbed 19

Non-compulsory purchase and use 19

Minimum statutory approval to show compliancy with the essential requirements of e-navigation and compatibility with other applications. 19

Allow innovation and fast evolution 19

Aimed at providing commercially-attractive packages 19

Fuel reduction 19

Navigational improvements 19

Improved company-level reporting 19

Dynamic under-keel clearance 19


7.1Six basic ways 20

alpha-numeric 20

graph 20

point, line or polygon 20

symbol 20

geo-spatial 20

imagery 20

7.1.1Alpha-numeric 20

7.1.2Graph 20

7.1.3Point, line, or polygon 20

7.1.4Symbol 20

Use consistent symbology across all displays 20

Uniqueness – only one possible meaning 20

Non-ambiguous – ability to determine differences (i.e. distinct) 20

Intuitively obvious – an easily recognized symbol, icon, or pattern 20

Have a basic symbol for different categories. Further attributes should be 20

enhancements (not changes) to the basic symbol. 20

7.1.5Geo-spatial 21

7.1.6Imagery 21

7.2Guiding Principles 21

The data content and format of e-navigation related data should be similar (e.g., GPS/DGPS, AIS ASMs, ENCs, etc.). However, how the data is displayed as ‘information’ depends on the particular tasks, function, and needs of the user. 21

There should be a means to achieve a similar portrayal of e-navigation information on key equipment/systems (e.g., ECDIS and radar). One possible means of achieving this is to have a default e-navigation portrayal mode that could be used to portray navigation-related information in a similar manner to that of shipborne displays. 21

The “portrayal of e-navigation information onboard ships or ashore does not necessarily have to be identical.” However, there is benefit to all users if information is displayed in a consistent and unambiguous manner. This includes the use of standard symbology, icons, and colour schemes. 21

With new types of e-navigation related information becoming available, there will a tendency to add more information to existing navigation displays (e.g., ECDIS and radar). Displaying too much supplemental information can obscure critical information or lead to confusion. 21


8.1ECDIS 21

Scope of ECDIS 22

Application of these standards 22

Definitions 22

Provision and updating of chart information 22

Display of SENC information 22

Scale 22

Display of other navigational information 22

Display mode and generation of the neighbouring area 22

Colours and symbols 22

Display requirements 22

Routing planning, monitoring and voyage recording 22

Calculations and accuracy 22

Performance tests, malfunctions alarms and indications 22

Back-up arrangements 22

Connections with other equipment 22

Power supply 22

the display is clear and unambiguous 22

there is no uncertainty over the meaning of colours and symbols on the display, [by] establishing an accepted pattern for ECDIS presentation that becomes familiar to mariners and so can be recognized instantly without confusion. 23

Main Document – This describes the Specifications for Chart Content and Display Aspects of ECDIS the in relatively general terms (i.e., methods and requirements). 23

Annex A – The Presentation Library is separate document (see further explanation below), and provides specifies the colours, symbols, symbolization instructions, etc. together with guidance on how an ENC should be displayed on ECDIS. This annex has several components: 23

Part I contains chart objects, and an addendum which is a paper-based description of the symbol library as graphics. 23

Part II contains [recommended] Mariner’s Navigational Objects (e.g.,. own ship symbol, tracks, waypoints, time tags, etc.) 23

The ECDIS Chart 1 is also included with the Presentation Library as a graphic file, and is also available as a collection of the varying objects contained in a special cell in S-57 format containing generic feature objects. 23

Annex B - Specifies procedures for initial colour calibration of displays and the verification of that calibration. 23

Annex C - Specifies a procedure for maintaining the calibration of displays. 23

8.2Radar 25

type of ship 26

frequency band in use 26

type of display 26

Section 3.4 – [ARPA] Display 26

Section 3.5 – Operational Warnings 27

Appendix 1 – Definitions of Terms to be used in Connection with ARPA Performance Standards 27

8.3AIS 27

in a ship-to-ship mode for collision avoidance; 27

as a means for littoral States to obtain information about a ship and its cargo; and 27

as a VTS tool, i.e. ship-to-shore (traffic management). 27

Presentation of information 27

Processing of information 27

Human interface 27

ships to report information to other ships and shore stations, 27

shore stations to report navigation information, conditions and warnings, and simplified ship reporting. 28

8.4INS 28

route monitoring 28

collision avoidance 28

alert management 29

special manoeuvres 29

All essential information should be displayed clearly and continuously. 29

Additional navigational information may be displayed, but should not mask, obscure or degrade essential information required for the display by its primary task, as specified in this performance standards. 29

The INS should be capable of displaying data available from the sensors. 29

The information should be displayed together with the indication of its source (sensor data, result of calculation or manual input), unit of measurement and status, including mode. 29

Display and update of essential information available in the equipment as well as safety-related automatic functions should not be inhibited due to operation of the equipment. 29

Default display configurations and operational modes including user-defined display modes (i.e., pre-defined or user defined). 29

Mode and status awareness 29

Information display 29

Section 6.4 - Functional requirements for displays of INS 29

Section 6.5 - Human Machine Interface (HMI) 29

Section 7 (Module C) - Alert Management 29

Annex D – Display Default Configurations 29

_______________________________________ 29

Examples of New Applications or Systems that May be e-navigation Related 30

Examples of New Applications or Systems that May be e-navigation Related 30

Vessel surveillance equipment (Video image of target ship) 36

Energy Consumption Optimized System On Ship 37

Marine engine information display 37

Maritime Safety Information (EfficienSea Project) 38

Harmonized Portrayal of e-navigation-related Information

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Iala guideline No. #### On Harmonized Portrayal of e-Navigation-related Information Edition 1

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