Which of the following best describes the recommended action if an obstruction is detected in the crane operating envelope?

• A. Notify the operator and proceed with caution
• B. Ignore and proceed
• C. Immediately stop all work and evacuate
• D. Increase speed to reduce time near obstruction

Answer: (A)

Communicate with the crane operator and move with deliberate caution when an obstruction appears in the crane’s operating envelope. Notifying the operator lets them assess the obstruction in real time, adjust the lift plan, and ensure clearances are maintained, possibly stopping the motion or changing direction if needed. Proceeding with caution preserves safe control of the lift while keeping productivity, rather than stopping work entirely unless the risk is immediate. Ignoring the obstruction is dangerous, stopping all work and evacuating is only necessary for imminent, unavoidable danger, and speeding up toward the obstruction greatly increases the chance of collision.