When should a signal person opt for verbal signals?

Choosing verbal signals during crane operations is essential in situations of limited visibility or when operations are complex and require constant updates. In these scenarios, non-verbal signals, such as hand signals, can be less effective due to visibility challenges or the dynamic nature of the task.

When visibility is limited—due to weather conditions, obstructions, or the layout of the site—visual signals may not be noticed or correctly interpreted by the operator. Verbal communication can provide clear, immediate instructions that ensure safe operation.

Similarly, for complex operations that involve multiple movements or when the load is moving through various hazards, constant updates via verbal signals help in maintaining safety and coordination. This real-time communication aids in the quick dissemination of vital information about changes in the environment, load status, or operational adjustments that need to be communicated promptly to prevent accidents.

In contrast, clear visibility and simple operations may not necessitate the use of verbal signals, as hand signals can be sufficient. Relying solely on the experience of operators for decision-making may overlook the need for proactive communication in varying circumstances. Lastly, a crane operator's preferences should always be balanced with the situational demands, which may call for adapting communication methods for optimal safety and effectiveness.