What personal protective equipment (PPE) is essential for workers in a traffic control zone?

High-visibility clothing, hard hats, and safety footwear are essential components of personal protective equipment (PPE) for workers in a traffic control zone. The high-visibility clothing is crucial because it ensures that workers are easily seen by both drivers and other personnel, reducing the risk of accidents. Hard hats are necessary to protect against head injuries from falling objects, which are common hazards in areas where construction or road work is taking place. Safety footwear is also vital, as it protects workers' feet from heavy equipment, sharp objects, and other potential hazards present in a traffic work zone. These specific items of PPE are designed to maximize safety and visibility in potentially dangerous environments, making them the most appropriate choice for this context.