Which item is crucial for visibility during airside operations?

Reflective vests are crucial for visibility during airside operations because they enhance the visibility of personnel in a busy and dynamic environment. The airport area often involves numerous vehicles, equipment, and personnel, and the reflective material of these vests ensures that individuals are seen clearly, especially in low-light conditions or at night. This heightened visibility is essential for maintaining safety and preventing accidents, as airside operations can involve high-speed movement and various hazards.

While standard uniforms, extra headlights, and brightly colored vehicles contribute to safety and visibility in their own ways, reflective vests specifically address the need for clear visibility of workers on foot, making them an indispensable part of safety gear in areas where there is a mix of vehicle and pedestrian traffic.