Passage Planning Flashcards
When Passage Planning on an ECDIS the OOW should:
When planning a passage on ECDIS, the OOW should:
• Be aware that the charted objects on an ENC are not more accurate or precisely
plotted than charted objects on the corresponding RNC or paper chart
• Make sure that there is enough of a safety margin between charted hazards and the
ship’s intended route to allow for the accuracy and precision of charts.
Depending on the ship’s certification, ECDIS may be the primary tool for passage planning on board. Effective use of route planning tools, voyage notes and action points contribute to a comprehensive passage plan.
When using ECDIS for passage planning, the following factors should be considered:
• Availability of and access to the required up-to-date ENCs and RNCs for the intended passage.
• This should include identification of areas where ECDIS may need to be in raster chart display system (RCDS) mode and where paper charts might therefore be required MGN 285
• If reusing a previous passage plan, the need to recheck the route to confirm that it remains safe and no changes are necessary
• An appropriate large scale ENC or RNC should be used when planning a route
• Making sure that any old or previous routes are removed from the display
• The need to select chart symbols (pick report) on ENCs to get additional detailed
safety and navigational information
• Applying a maximum acceptable cross track distance (XTD) to each leg of a route.
This should comply with any requirements in the SMS and be appropriate for the area
• Calculating safety depths and safety contours and setting them up in line with the
under keel clearance (UKC) requirements in the SMS;
• Setting estimated time of arrival (ETA) information manually or using route planning
tools. If this is set incorrectly, it may affect tidal data and time dependent information
for the route
• Applying current and tidal data, if integrated with ECDIS and up to date, to the route
Checking information about the vessel’s characteristics and confirming it as correct. This includes details about draught (including any allowance for squat or additional safety margins, turn radius and vessel dimensions.
The passage plan should be saved, backed up and locked to prevent unauthorized editing.
ECDIS safety settings
Before departure, the OOW should make sure that the correct safety settings are entered into the ECDIS for the ship’s static and dynamic data.
Factors to consider when passage planning on an ECDIS MGN 285
Safety Depth
Safety Contour
CATZOC
Route Checking Monitoring on an ECDIS
Principles of Passage Planning
The purpose of passage planning is to develop a comprehensive navigation plan for the safe conduct of the ship from berth to berth.’
The plan for the intended passage should identify a route that:
• Recognises hazards and assesses associated risks and decision points
• Ensures that sufficient sea room and depth of water is available
• Includes appropriate position fixing opportunities and intervals
• Complies with relevant reporting requirements and routeing measures for
ships
• Considers anticipated traffic and weather conditions
• Complies with all applicable environmental protection measures.
Regulation 34
Solas Regulation 34
Safe navigation and avoidance of dangerous situations
Prior to proceeding to sea, the master shall ensure that the intended voyage has been planned using the appropriate nautical charts and nautical publications for the area concerned, taking into account the guidelines and recommendations developed by the Organization.
The voyage plan shall identify a route which:
• Takes into account any relevant ships’ routeing systems;
• Ensures sufficient sea room for the safe passage of the ship throughout the
voyage;
• Anticipates all known navigational hazards and adverse weather conditions;
and
• Takes into account the marine environmental protection measures that apply,
and avoids, as far as possible, actions and activities which could cause damage to the environment.
APEM
Explain the Appraisal stage
Publications - Sailing Directions, NTMs, ocean passage/routing charts and guides, port guides, list of lights, list of radio signals, tide tables and tidal stream atlas, load line charts, maritime security charts
Explain the Planning Stage
Explain the Execution stage
Having finalised the voyage or passage plan, as soon as time of departure and estimated time of arrival can be determined with reasonable accuracy. The voyage or passage should be executed.
Consider
• The reliability and condition of the vessel’s navigational equipment
• Estimated times of arrival at critical points for tide heights and flow
• Daytime versus night-time passing of danger points, and any effect this may
have on position fixing accuracy
• Traffic conditions, especially at navigational focal points
• Meteorological conditions, (particularly in areas known to be affected by
frequent periods of low visibility) as well as weather routeing information
Monitoring a passage plan
Compliance with the passage plan should be closely monitored by the OOW:
• To check that the ship’s position is maintained within an authorised cross track
error, including following alterations of course to avoid a collision or
waypoints
• By fixing the ship’s position at a frequency based on existing conditions and
the proximity of navigational hazards
• By cross-checking the ship’s position using all appropriate means, including:
• By visual and/or radar fixing techniques using ranges and bearing of charted
objects
• By echo sounder to monitor charted depths and contours
• By monitoring the integrity of information displayed on navigational
equipment
Monitoring should be undertaken using appropriately prepared electronic or paper charts.
Passage Plan checklists
5 C’s of Seaworthiness
5 C’s of Seaworthy
1. Compliance - with Flag state & International codes & Conventions
2. Certification - current & Valid (The VSL meets the requirements to be certified)
3. Condition of ship is ready for voyage (Completed PM/LSA/WT integrity/Loadline)
4. Crew -Min Safe Manning/Experience/Drills/Training/Fit for Duty
5. Conduct – Operating VSL safely & proper voyage planning
a. Safe Working Environment / PPE / Safety Training / Safety Officials
