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Navigation & chartwork

Which sequence best supports a radar-based decision in a developing traffic situation?

Short answer

Check, observe, cross-check, decide within limits and monitor

A radar conclusion needs a functioning picture, systematic observation and continued review. Stop the release loop whenever its evidence is inadequate. Revisit Safe Operating Mindset.

Sources and scope

Reviewed by Richard Moore on . This answer is scoped to international collision-avoidance and small-craft radar practice; check the current chart, publication, local rules and official operational guidance before acting afloat.

Quick check

Which sequence best supports a radar-based decision in a developing traffic situation?