What is the primary role of a remote control operator during movements?

The primary role of a remote control operator during movements involves visually observing the direction of equipment movement. This responsibility is crucial as it ensures that the operator can monitor the train's progress and make informed decisions about any necessary adjustments. Observing the movement allows the operator to respond quickly to any potential hazards or issues that may arise, maintaining safety and efficiency during operations.

While communication with other crew members, initiating safety procedures, and riding the leading engine are important roles in various contexts, they do not encapsulate the core duty of the remote control operator in this scenario. The operator's focus on visual observation directly impacts the safe and effective management of train movements.