KUP 13 Have thorough knowledge of the Principles to be observed in keeping a navigational watch
This learning objective includes being aware of the duties of the officer of the watch (OOW), the importance of maintaining situational awareness, and the need for effective communication and teamwork on the bridge.
Fatigue is a significant risk factor in navigation, and it is crucial to ensure that watchkeepers are adequately rested and alert. The officer of the watch must be vigilant for signs of fatigue in themselves and others, and take steps to mitigate its effects, such as ensuring proper rest periods and, when necessary, calling for additional assistance.
Read more about fatigue:
https://journals.viamedica.pl/international_maritime_health/article/view/IMH.2015.0024/28876
The officer of the watch must continuously monitor the ship’s position, course, speed, and proximity to other vessels and hazards. This involves the use of navigational tools and techniques, such as radar, GPS, ECDIS, and visual bearings, to ensure the ship remains on a safe course and to detect any potential dangers in time to take appropriate action.
Dr. Mica Endsley, a leading expert in the field, developed a widely recognized model of situational awareness (show above) that breaks down the concept into three distinct levels: perception, comprehension, and projection.
The first level, perception of the elements in the environment, involves the initial detection and recognition of relevant information in the surroundings. This includes noticing key factors such as other vessels, navigational hazards, weather conditions, and the ship’s own operational status. It’s about being aware of all the sensory inputs and data available from instruments and the environment.
The second level, comprehension of the current situation, goes beyond mere perception by interpreting the significance of the information gathered. This involves integrating various pieces of data to form a coherent understanding of the situation. For example, it means understanding how the distance, speed, and direction of an approaching vessel might indicate a potential collision risk, or how current weather conditions could affect the ship’s navigation. This level requires a deeper awareness of how different factors interact and what they mean for the current situation.
The third level, projection of future status, involves using the understanding gained in the previous levels to anticipate future events or outcomes. This level of situational awareness allows for predicting how the situation is likely to evolve if no changes are made and what the consequences of current actions might be. For example, it involves anticipating the future position of another vessel based on its current course and speed, or predicting how worsening weather conditions might impact the ship’s safety. This foresight is crucial for proactive decision-making and preventing potential accidents.