What is the primary concern when coupling train cars?

The primary concern when coupling train cars is following proper safety protocols. Safety is paramount in train operations, and coupling involves a range of risks, including the potential for injury to personnel and damage to equipment. Proper safety protocols ensure that all operations are conducted in a controlled manner, which includes using appropriate equipment, inspecting couplers, and validating that the cars are securely coupled before proceeding. This helps to prevent accidents that can arise from improper coupling or failing to follow safety measures, such as ensuring that personnel are clear from the coupling area or verifying that the cars are properly aligned. Each safety protocol is designed to protect both the crew and the integrity of the train, making it essential during the coupling process.