When in doubt about another flagger's message, what signal should be displayed?

In the context of flagging operations, when in doubt about another flagger's message, displaying a stop signal is critical for ensuring the safety of drivers and workers in the work zone. This response prevents vehicles from proceeding into potentially dangerous or unclear situations. Flaggers are responsible for controlling the flow of traffic, and a stop signal effectively communicates the need for vehicles to halt until clarity is established regarding the flagger's instruction.

Choosing to stop rather than to proceed, warn, or yield helps mitigate confusion and reduces the risk of accidents that can occur when drivers attempt to decipher unclear signals. The stop signal acts as a clear and definitive instruction, prioritizing safety over any other considerations. Therefore, maintaining a cautious approach by using a stop signal in times of uncertainty is the best practice in traffic control situations.