Who can assign additional members to the crane team?

The correct answer is that the supervisor can assign additional members to the crane team as required. This is rooted in the structured hierarchy and safety protocols inherent in crane operations. The supervisor is responsible for overseeing the safe and efficient operations of the crane team. They possess the authority and responsibility to evaluate the situation and determine if additional resources or personnel are needed to ensure safety and operational efficiency.

Assigning team members is a crucial part of operational management, ensuring that the right skills are available for the task at hand and that safety standards are maintained. The supervisor's ability to delegate roles helps adapt the team structure to the specific demands of each lifting operation.

Other choices do not align with the established procedures. While the crane operator and rigger-in-charge play critical roles, they do not have the same level of authority as the supervisor when it comes to team assembly and resource allocation. These roles focus more on executing the tasks rather than managing team composition. Also, allowing any team member to assign roles could lead to inconsistencies and safety hazards, as the authority and judgment required for such decisions are held by the supervisor.