If an AIS target is indicated to be stationary, what does this mean for the vessel?

If an AIS target is indicated to be stationary, what does this mean for the vessel?

• A. The vessel has stopped moving
• B. The AIS signal is lost
• C. The vessel is in a holding pattern
• D. The vessel is awaiting further instructions

Answer: (A)

When an AIS target is indicated to be stationary, it signifies that the vessel has stopped moving. This information is derived from the Automatic Identification System (AIS) data, which provides real-time information about vessel movements, including their speed and course. If a vessel’s AIS signal indicates that it is stationary, it typically means that it has come to a complete stop and is not currently navigating. Understanding this context is crucial for effective navigation and situational awareness. Although other options such as being in a holding pattern or awaiting further instructions may also describe scenarios where a vessel could appear stationary, the primary and direct interpretation from the AIS data indicates that the vessel has ceased movement. It is also important to note that while the AIS signal could potentially be lost, that would not specifically indicate the vessel is stationary; instead, it would suggest a problem with the data transmission.

When an AIS target is indicated to be stationary, it signifies that the vessel has stopped moving. This information is derived from the Automatic Identification System (AIS) data, which provides real-time information about vessel movements, including their speed and course. If a vessel’s AIS signal indicates that it is stationary, it typically means that it has come to a complete stop and is not currently navigating.

Understanding this context is crucial for effective navigation and situational awareness. Although other options such as being in a holding pattern or awaiting further instructions may also describe scenarios where a vessel could appear stationary, the primary and direct interpretation from the AIS data indicates that the vessel has ceased movement.

It is also important to note that while the AIS signal could potentially be lost, that would not specifically indicate the vessel is stationary; instead, it would suggest a problem with the data transmission.