Question 22 ONC05 - Master or Mate of LT 200 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 TSZ is the area within a Traffic Separation Scheme (TSS) that is specifically designated to separate the traffic lanes (or traffic paths) that are carrying vessels proceeding in opposing directions. Its primary function is to minimize the risk of head-on collisions by creating a buffer zone. **Explanation of Incorrect Options:** * **Option B (is located between the scheme and the nearest land):** This describes a **Coastal Traffic Zone** (or in some contexts, an Inshore Traffic Zone, though the latter is not always present and is not a required part of the definition of the TSZ). The Traffic Separation Zone itself is the dividing area within the scheme, not necessarily the zone between the scheme and the coast. * **Option C (is designated as an anchorage area):** This is incorrect. Traffic Separation Schemes, including the TSZ, are typically areas to be avoided for anchoring, except in emergencies. Dedicated anchorage areas are designated separately and usually outside the main flow of traffic. * **Option D (contains all the traffic moving in the same direction):** This describes a **Traffic Lane** (or traffic path) within the TSS, not the Traffic Separation Zone. The Traffic Separation Zone separates these lanes, but does not contain the main flow of traffic itself. Vessels are generally required to avoid navigating within the TSZ, except for specific, necessary maneuvers (like crossing or joining/leaving the scheme).