What should an ARPA do to improve the standard of collision avoidance at sea according to IMO performance standards?

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Multiple Choice

What should an ARPA do to improve the standard of collision avoidance at sea according to IMO performance standards?

ARPA should reduce the workload of the observer by automatically providing information. This is the idea behind the IMO performance standards: the system should lighten the navigator’s burden by presenting clear, timely data so decisions can be made quickly and safely. When ARPA automatically computes and displays essential details—target tracks, predicted paths, relative bearings and ranges, CPA and TCPA, rates of closure, and alerts—it frees the observer from manual plotting and calculation, letting them focus on how to maneuver to avoid collision. The goal is to enhance situational awareness and support sound decisions, not to replace the human in the loop. Increasing the number of targets tracked isn’t the core objective; more targets can add clutter and complexity without necessarily improving safety. Replacing all human decision making is not desired—the operator remains responsible for decisions, with ARPA acting as a powerful aid. Not displaying past positions would remove valuable historical context that helps interpret movements and predict future behavior, reducing the effectiveness of collision avoidance.

ARPA should reduce the workload of the observer by automatically providing information. This is the idea behind the IMO performance standards: the system should lighten the navigator’s burden by presenting clear, timely data so decisions can be made quickly and safely. When ARPA automatically computes and displays essential details—target tracks, predicted paths, relative bearings and ranges, CPA and TCPA, rates of closure, and alerts—it frees the observer from manual plotting and calculation, letting them focus on how to maneuver to avoid collision. The goal is to enhance situational awareness and support sound decisions, not to replace the human in the loop.

Increasing the number of targets tracked isn’t the core objective; more targets can add clutter and complexity without necessarily improving safety. Replacing all human decision making is not desired—the operator remains responsible for decisions, with ARPA acting as a powerful aid. Not displaying past positions would remove valuable historical context that helps interpret movements and predict future behavior, reducing the effectiveness of collision avoidance.

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