What safety value is inputted by the navigator for route checking and monitoring in ECDIS?

What safety value is inputted by the navigator for route checking and monitoring in ECDIS?

• A. Safety Vessel Speed
• B. Safety Contour
• C. Safety Area Drawing
• D. Safety Turn Radius

Answer: (B)

The concept of safety contour in ECDIS plays a critical role in ensuring navigational safety. This value is defined as the depth contour that is used to indicate safe water areas on the electronic chart. By inputting a safety contour, the navigator establishes a threshold below which the ECDIS will highlight areas that may be unsafe due to shallow water, thereby facilitating route checking and monitoring. When the safety contour is set, it allows the system to visually display the safe and unsafe depths in real-time based on the vessel’s draft. This is crucial for the navigator to avoid underwater hazards that could threaten the vessel's safety during its journey. Other factors such as safety vessel speed, safety area drawing, and safety turn radius are important in the overall navigation strategy but do not specifically relate to the direct delineation of safe water depths in the manner that the safety contour does. Thus, while they are relevant in various navigational contexts, they do not serve the specific function of route monitoring and safety checking related to depth, which is the primary purpose of a safety contour.

The concept of safety contour in ECDIS plays a critical role in ensuring navigational safety. This value is defined as the depth contour that is used to indicate safe water areas on the electronic chart. By inputting a safety contour, the navigator establishes a threshold below which the ECDIS will highlight areas that may be unsafe due to shallow water, thereby facilitating route checking and monitoring.

When the safety contour is set, it allows the system to visually display the safe and unsafe depths in real-time based on the vessel’s draft. This is crucial for the navigator to avoid underwater hazards that could threaten the vessel's safety during its journey.

Other factors such as safety vessel speed, safety area drawing, and safety turn radius are important in the overall navigation strategy but do not specifically relate to the direct delineation of safe water depths in the manner that the safety contour does. Thus, while they are relevant in various navigational contexts, they do not serve the specific function of route monitoring and safety checking related to depth, which is the primary purpose of a safety contour.