Rules of the Road · Narrow Channels & TSS
When joining or leaving a traffic lane in a TSS, Rule 10 requires a vessel to do so:
- AAt the designated inbound or outbound waypoints shown on the chart
- BAt as small an angle to the general direction of traffic flow as practicable✓ Correct
- CAfter broadcasting her intentions on VHF channel 16
- DOnly at the terminal ends of the scheme
Explanation
Rule 10(c) requires vessels to join or leave a traffic lane at as small an angle as practicable. A shallow joining angle minimizes the time the vessel spends cutting across traffic flow and reduces collision risk. There is no requirement to use specific waypoints or to broadcast on VHF.
Authority: 72 COLREGS Rule 10(c)
Practice the full Rules of the Road bank
Free spaced-repetition quizzing across 2190 USCG exam questions — it schedules your reviews so the ones you miss come back until they stick.
Related Rules of the Road questions
- Narrow Channels & TSS
Under Rule 9, a vessel proceeding along a narrow channel or fairway shall:
- Narrow Channels & TSS
Under Rule 9, a vessel less than 20 meters in length or a sailing vessel in a narrow channel:
- Narrow Channels & TSS
When overtaking is possible only if the vessel to be overtaken takes action to permit safe passing in a narrow channel, Rule 9(e) requires:
- Narrow Channels & TSS
Under Rule 9, a vessel shall not cross a narrow channel if such crossing:
- Narrow Channels & TSS
Under Rule 10, a vessel using a traffic separation scheme shall normally proceed in:
- Narrow Channels & TSS
A vessel less than 20 meters or a sailing vessel in a TSS: