Rules of the Road · Narrow Channels & TSS
Under Rule 10, a vessel using a traffic separation scheme shall normally proceed in:
- AThe lane that places her on the starboard side of the traffic flow
- BThe appropriate traffic lane in the general direction of traffic flow for that lane✓ Correct
- CThe center of the separation zone to maintain maximum clearance from traffic
- DEither lane, choosing the lane that offers the greatest underkeel clearance
Explanation
Rule 10(b)(i) requires a vessel using a TSS to proceed in the appropriate traffic lane in the general direction of traffic flow. The separation zone — not the center — provides the buffer between opposing traffic streams, and vessels must stay within their designated lane.
Authority: 72 COLREGS Rule 10(b)(i)
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