What is the standard hand signal for "Stop"?

The standard hand signal for "Stop" is represented by a raised hand. This signal is universally recognized in construction and rigging operations, as it is a clear and visible indication to halt all operations immediately. The raised hand effectively grabs attention and conveys the message that all activity should cease, ensuring the safety of personnel and equipment in potentially hazardous situations.

Using a raised hand is effective because it stands out against most backgrounds and is easy to discern from a distance, which is crucial in the noisy environments typical of construction sites. Proper understanding and use of hand signals, including the raised hand for stopping actions, are vital for maintaining communication and safety among team members during operations.