Which 10-CODE corresponds to the instruction 'Establish traffic at checkpoint'?

• A. 10-11
• B. 10-12
• C. 10-18
• D. 10-14

Answer: (D)

Establishing traffic at a checkpoint is a hands-on, on-scene operation that requires a quick, recognizable signal to other units. The 10-CODE used for traffic control at a location communicates that you are setting up and directing the flow of vehicles at that checkpoint, coordinating lanes, stops, and safety measures. This code helps supervisors and fellow responders understand that the primary task on scene is traffic management, so resources can be allocated and actions synchronized accordingly. Other codes describe different actions or statuses (like being in service, weather conditions, or standby) and don’t convey the specific traffic-control operation at a checkpoint.