If ARPA shows a high ROC with a target on crossing, what action should you take?

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Multiple Choice

If ARPA shows a high ROC with a target on crossing, what action should you take?

A high rate of closure on a target that is crossing your path signals an imminent collision risk, so you must act under the COLREGS to avoid it. The goal is to use early, decisive maneuvering to increase the distance or the time until you would meet the other vessel (increase CPA and/or TCPA) while complying with the give-way/stand-on rules. Determine which vessel has the obligation to give way and execute a safe course or speed change to pass well clear. This proactive action is essential because simply continuing on the present track or ignoring the threat won’t reduce the risk, and turning off ARPA or ignoring the target would jeopardize safety.

A high rate of closure on a target that is crossing your path signals an imminent collision risk, so you must act under the COLREGS to avoid it. The goal is to use early, decisive maneuvering to increase the distance or the time until you would meet the other vessel (increase CPA and/or TCPA) while complying with the give-way/stand-on rules. Determine which vessel has the obligation to give way and execute a safe course or speed change to pass well clear. This proactive action is essential because simply continuing on the present track or ignoring the threat won’t reduce the risk, and turning off ARPA or ignoring the target would jeopardize safety.

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