Where should the wind indicating device be located when a crane is hoisting an occupied personnel platform?

The wind indicating device should be located at the boom point when a crane is hoisting an occupied personnel platform for several important reasons. Placing the device at the boom point allows for the most accurate measurement of wind conditions at the height where the personnel are working. Wind effects can vary significantly with altitude and distance from the ground; thus, positioning the device at the boom point ensures that the operator can assess how wind conditions may impact both the stability of the crane and the safety of the personnel on the platform.

Furthermore, the boom point is where the forces caused by wind can influence the load most directly, affecting the crane's performance during operation. If the wind is strong enough to cause sway or instability, the operator can make informed decisions about whether to continue the lift or take other precautions. This proactive approach to safety is crucial when operating in environments where personnel are elevated and at risk.

Having the wind indicating device in locations such as the base of the crane or the operator’s control panel would not provide useful data about the actual wind conditions experienced by the hoisted platform. This could lead to the operator misjudging safety risks, potentially endangering the personnel onboard.