What is the purpose of using hand signals during roadway work?

Using hand signals during roadway work serves the essential purpose of simplifying communication in areas with low visibility. In situations where it may be difficult for workers to hear or understand verbal instructions—such as in noisy environments or when visibility is compromised—hand signals provide a clear and immediate way to convey directions or instructions. This is particularly crucial for maintaining safety, ensuring that all workers are aware of their surroundings, and can respond promptly to changes or hazards.

While directing non-railroad vehicles and guiding traffic away from work zones are important aspects of managing roadway safety, these tasks typically involve additional methods such as signage or communication with traffic control personnel, rather than relying primarily on hand signals. Avoiding unnecessary radio use can be a consideration in some cases, but the primary intent of hand signals is fundamentally about facilitating effective communication in challenging conditions.