쉐도잉 연습: Passage Planning: The Four Stages of Voyage Planning Explained - 영상으로 영어 말하기 배우기
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A passage plan, or voyage plan,
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is a detailed, systematic, and comprehensive plan prepared to ensure the safe navigation of a vessel from birth to birth.
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It covers every stage of the voyage, from departure, through coastal and ocean passages, up to the final approach and berthing at the destination port.
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Its purpose is essential to promote safety of navigation, compliance with regulations, and efficient voyage management.
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The responsible officer in charge of making the passage plan is the master, but on most merchant vessels,
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the preparation is normally delegated to the second officer.
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The master must review and improve the plan before departure.
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Today's video covers the four stages of passage planning.
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Appraisal, Planning, Execution and Monitoring.
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The appraisal stage is the foundation of the entire passage plan.
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At this stage, the navigator collects, reviews and evaluates all relevant information needed for the intended voyage.
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identifying navigational hazards and other factors that may affect the ship's safety.
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We can refer to the Bridge Team Management Manual or to the passage planning guidelines provided on board for detailed procedures.
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However, it is important to check the company's SMS for any specific instructions
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or additional guidelines regarding the preparation of a passage plan.
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If we take a look at the Bridge Team Management Manual Table of Contents,
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we can see that Chapter 2 lists the sources of information used in the appraisal stage, which can be found on page 9.
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It is stated that such appraisal should be made by considering information from a variety of sources, including, but not limited to, the following.
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Not all of these sources will be necessary for every passage or voyage,
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but this list serves as a comprehensive checklist to ensure that all essential information is considered before planning the route.
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Let's have a brief discussion on the following sources of information listed, starting from the chart catalog.
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This publication lists all available navigational charts and their limits, scales, and additions.
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It helps the navigator select the correct charts for the entire voyage.
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Second is the navigational charts.
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These are the primary tools for planning and conducting navigation.
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They show coastlines, depths, dangers, aids to navigation, and other essential details.
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Third, ocean passages for the world.
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A publication provided recommended ocean routes, distances, and seasonal weather patterns for long ocean passages.
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Fourth is the routing charts or pilot charts.
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These show average meteorological and oceanographic conditions such as prevailing winds, currents, and storm tracks for each month of the year.
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Fifth is sailing directions and pilot books.
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This publication offers detailed information on coasts, ports, anchorages, pilotage procedures, and local regulations.
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Sixth is Light Lists.
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This publication lists all lighthouses, lightships, and major buoys, including their characteristics, ranges, and positions.
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Seventh, Tide Tables.
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These provide predicted times and heights of high and low tides at standard and secondary ports.
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Eight, Tidal Stream Atlases.
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This shows the direction and rate of tidal streams at hourly intervals over a given area.
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Ninth, notices to mariners.
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Weekly or periodic updates issued by hydrographic offices to correct charts and publications to the latest information.
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Tenth, routing information.
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Contains details about traffic separation schemes, deep water routes and other mandatory or recommended routing systems.
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Next, radio signal information, including VTS and pilot services.
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Lists maritime radio services, such as vessels traffic services stations, pilot boarding frequencies, weather podcasts, and distress communication details.
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Next, climatic information.
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Provides long -term data on wind visibility, fog, temperature, and sea conditions to support safe route planning.
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Next, load line chart indicates zones and seasonal areas affecting the vessel's permitted graft and load line marks.
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Next, distance tables.
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Provide distances between major ports and waypoints, useful for voyage estimation and fuel planning.
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Next, electronic navigational systems information.
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Includes data on GPS, ECDIS, AIS, and other electronic systems used for position fixing and route monitoring.
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Next, radio and local navigational warnings.
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Broadcasts issued to warn mariners of temporary hazards such as drifting objects, military exercises or navigation light failures.
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Next, draught of vessel.
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The ship's draft affects route selection, under keel clearance and title considerations along the passage.
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Next, Navigational Terms ensures consistency and understanding of symbols,
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abbreviations, and terminology used in charts and publications.
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Owners and Other Unpublished Sources These are supplementary information from the vessel's owner, charterers, agents, and port authority.
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Personal Experience It's about the navigator's own knowledge or prior experience in the area, which adds valuable practical insight.
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The Mariner's Handbook, a reference manual containing general information about navigation, chart usage, tides, currents, and meteorology.
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Guide to Port Entry, provides detailed port information including pilot boarding positions, depths, berthing facilities, and local regulations.
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Nautical Almanac, necessary for determining times of sunset and sunrise, and and assists in position fixing when electronic system fails.
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Additional information not listed in the Bridge Team Management Manual includes the Emission Control Area and High Risk Area.
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Emission Control Areas are specific sea regions established by the IMO
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where stricter environmental regulations are applied to minimize air pollution from ships.
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Within these zones, vessels are required to use low -sulfur fuel or other clean energy alternatives to reduce harmful emissions,
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such as sulfur oxides, nitrogen oxides, and particulate matter.
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High -risk areas, on the other hand, are sea regions identified as having a high threat of piracy or armed robbery against ships.
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These areas are designated by international maritime bodies, such as the IMO and BIMCO,
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and are often located around regions like the Gulf of Aden, the Arabian Sea, and parts of the West African coast.
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It may seem that these sources of information are quite extensive,
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but remember that most vessels today are equipped with digital nautical publications and electronic navigational charts.
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These tools make it much easier for mariners to access and compile the necessary information efficiently.
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I'll be creating a separate video in the future
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that will explain in detail how to gather
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and organize the sources of information based on the voyage instructions provided by the Trotterer.
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Now, if all the necessary information has been collected and appraised, the next step is the planning stage,
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where the actual voyage plan begins to take shape.
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In this stage, the navigator uses the gathered data to lay down the ship's intended track on the chart, ensuring that the route is safe,
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efficient, and compliant with all navigational requirements and company procedures.
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Once all navigational charts are gathered and arranged in the correct order, they must be carefully examined,
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and no -go areas should be highlighted or cross -hatched.
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Before marking the tracks, margins of safety must be determined to establish safe water.
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Ocean
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and open water tracks can be drawn first on a small -scale chart according to the decisions made during the appraisal stage.
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Any chart change should be clearly indicated showing the number of the next chart to be used.
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When navigating close to danger, track consideration must be applied,
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ensuring that minimum safety rules are followed to keep the vessel within safe water
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and that a proper distance off danger is maintained.
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Regulations concerning offshore distances must also be observed.
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If there is any deviation from tracks, the ship must still remain within safe waters.
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Under Kiel Clearance should be taken into account when operating in areas of limited depth.
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The title window must be checked to confirm that the required UKC is attainable.
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If not, the area should be marked as a no -go area.
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and tidal streams should also be considered.
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Several other factors must be included when laying tracks and appropriately marked on the charts.
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These include course alteration and wheel over point, parallel indexing, wait points, abort point and point of no return,
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contingency anchorage, position fixing, primary and secondary precision fixing,
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fixed frequency, radar conspicuous objects and visual navigational aids,
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landfall lights, radar targets, buoys, reporting points, anchor clearance, pilot boarding area,
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traffic areas, transit or ranges, leading lines, clearing marks, head mark,
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clearing bearings, range of lights, and parallel indexing among others.
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To explain this in greater detail, I will be creating a separate video in the future
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that focuses solely on the planning stage based on the voyage instructions provided by the charter.
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Once the planning stage has been completed, with all charts prepared, tracks laid, and safety margins clearly defined,
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the next step is the execution stage.
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Execution stage begins once the plan has been fully prepared, checked, and approved.
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This stage involves putting a plan into action,
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ensuring that every element of the voyage is carried out safely and efficiently according to the established procedures.
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During execution, the bridge team must implement the tactics and timings decided in the planning stage,
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such as the expected times of arrival for tides and daylight,
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tidal stream information, traffic conditions, and destination ETA.
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The plan may be adjusted as needed to reflect real -time conditions like weather, current, or traffic.
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Any modification should still ensure that the ship remains within safe water and complies with company and international regulations.
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Before departure, A bridge team briefing must be conducted.
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This is an essential step to ensure that every team member understands the passage plan and their individual responsibilities.
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Now, monitoring stage is the final and continuous phase of passage planning.
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Monitoring involves ensuring that the ship is following the predetermined passage plan and remains within safe waters at all times.
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It is the primary responsibility of the officer of the watch to verify that the ship's progress aligns with the planned route,
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making timely adjustments whenever necessary to maintain safety and efficiency.
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Effective monitoring consists of performing a series of navigational checks, analyzing the results, and taking appropriate action based on that analysis.
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This includes the use of fixing methods, maintaining regularity in position fixing,
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verifying estimated positions, taking visual bearings and soundings, and monitoring cross -track error.
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Other important factors such as compliance with the international regulations for the prevention of collision at sea,
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managing non -navigational emergencies, ensuring proper time management,
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maintaining an effective lookout, monitoring underkeel clearance,
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verifying waypoints, and checking GPS fixes must also be continuously observed.
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Through effective monitoring,
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the navigator ensures that the vessel safely follows the intended passage while promptly responding to any deviations or unexpected conditions.
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That's all for now.
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I hope you found this video helpful.
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See you next time.
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Thank you for watching.
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Bye.
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배경 및 맥락
이 비디오는 선박의 안전한 항해를 위한 '항로 계획'에 대해 설명합니다. 항로 계획은 출발부터 도착까지의 모든 단계를 포괄하며, 4가지 단계(평가, 계획, 실행, 모니터링)로 이루어집니다. 특히 평가 단계에서는 해도, 조석표, 기상 정보 등 다양한 자료를 수집하고 분석하는 과정이 중요합니다. 이런 전문적인 주제의 영상은 영어 듣기와 발음 연습에 좋은 자료로, 영상 영어 공부에 적합합니다.
일상 대화에 유용한 상위 5개 표현
- comprehensive plan: 포괄적인 계획. "항로 계획은 포괄적인 계획입니다"처럼 사용.
- navigational hazards: 항행 위험. "항행 위험을 식별해야 합니다"에서 활용.
- compliance with regulations: 규정 준수. "규정 준수가 중요합니다"로 표현.
- mandatory routing systems: 의무 항로 시스템. "의무 항로 시스템을 따라야 합니다"에서 사용.
- fuel planning: 연료 계획. "연료 계획을 위해 거리표를 참고합니다"처럼 활용.
단계별 쉐도잉 가이드
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이 영상의 문법
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| 문형 | 영상 속 표현 |
|---|---|
| 수동태 be + 과거분사 — 누가 하는지보다 무슨 일이 일어나는지에 초점 | can be found · is stated · is considered |
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