What term describes the individual responsible for controlling ride operations?

The term that describes the individual responsible for controlling ride operations is "Operator." In the context of amusement rides, the operator plays a crucial role in ensuring that the ride functions safely and efficiently. This person is trained to monitor the ride's operation, enforce safety protocols, and manage the loading and unloading of passengers. The operator must be knowledgeable about the ride's mechanisms and emergency procedures, making them essential to maintaining a safe environment for all riders.

In contrast, the other choices refer to different roles. A participant typically refers to someone engaging with the ride but does not have control over its operation. A rider is simply a patron who experiences the ride, while a restraint system pertains to the safety features used to secure passengers during the ride. Each of these options lacks the directive authority that the operator holds, highlighting the specific responsibilities that the operator possesses in managing the ride operations.