What color flags are used to indicate "stop" and "go" on construction sites?

The use of red flags to indicate "stop" and green flags for "go" aligns with universally recognized color codes in signaling and safety protocols, including those in construction and other industrial environments. Red is a standard color associated with caution or stopping, making it easily identifiable for workers needing to halt operations or movement. Green, on the other hand, signifies that it is safe to proceed. This color distinction is vital for maintaining clear communication and ensuring the safety of personnel on-site. Familiarity with these signals helps prevent accidents and misinterpretations, providing critical guidance in situations where clear visual cues are necessary for operational safety.

Understanding that these colors convey specific, widely accepted meanings helps enhance situational awareness among workers, thereby improving overall site safety management. The other options present alternative color interpretations that are not aligned with standard practices, potentially leading to confusion in a high-stakes environment like construction.