In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so at as small an angle as possible.

In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so at as small an angle as possible.

• A. At 45 degrees
• B. A right angle
• C. As small as possible
• D. As large as possible

Answer: (C)

The key idea is to join a traffic separation scheme at the shallowest angle practicable. Merging with as small an angle as possible allows your vessel to blend smoothly into the lane’s traffic flow, minimizing disruption and the risk of crossing paths with vessels already proceeding within the scheme. Entering at a wider angle or perpendicularly would force you to cut across the stream of traffic, increasing the chance of a collision or near-miss and making your intentions harder to anticipate for others. So the safest and most compliant approach is to join at as small an angle as possible, given conditions and safety.

The key idea is to join a traffic separation scheme at the shallowest angle practicable. Merging with as small an angle as possible allows your vessel to blend smoothly into the lane’s traffic flow, minimizing disruption and the risk of crossing paths with vessels already proceeding within the scheme. Entering at a wider angle or perpendicularly would force you to cut across the stream of traffic, increasing the chance of a collision or near-miss and making your intentions harder to anticipate for others. So the safest and most compliant approach is to join at as small an angle as possible, given conditions and safety.