Question 22 ONC04 - Mate of LT 500-1600 GRT

The Correct Answer is A **Explanation for Option A (Correct Answer):** Option A ("separates traffic proceeding in one direction from traffic proceeding in the opposite direction") is the correct definition of a Traffic Separation Zone (TSZ). According to both the International Regulations for Preventing Collisions at Sea (COLREGs) and Inland rules where applicable, a Traffic Separation Scheme (TSS) is designed to organize maritime traffic flow. The TSZ (or 'separation line' or 'separation zone') is the area specifically designated within the TSS to separate the lanes (traffic lanes) used by vessels proceeding in opposite or nearly opposite directions, minimizing the risk of head-on collisions. **Explanation of Incorrect Options:** * **Option B (is located between the scheme and the nearest land):** This describes a **Coastal Traffic Zone** or an inshore traffic zone (ITZ) – an area that is usually *not* part of the TSS itself and is generally reserved for local traffic, fishing vessels, and vessels crossing or joining the TSS. It is not the definition of a separation zone. * **Option C (is designated as an anchorage area):** Anchorage areas are specifically designated zones (often depicted on charts) where vessels can safely anchor. They are distinct from, and not the purpose of, a traffic separation zone. * **Option D (contains all the traffic moving in the same direction):** This describes a **Traffic Lane** (or Traffic Separation Lane) within the scheme, not the Traffic Separation Zone. The traffic lane is the area where vessels proceed in the same direction; the separation zone separates two opposing traffic lanes.