What is the primary role of warning lines in construction safety?

The primary role of warning lines in construction safety is to indicate hazardous zones. These lines serve as a visual cue to workers and visitors on a construction site, helping to delineate areas that may pose a risk for falls or other accidents. The presence of warning lines signifies that caution is necessary and that individuals should avoid crossing into those marked areas unless they are properly equipped and prepared for the associated hazards.

By clearly marking off dangerous zones, warning lines help enhance awareness and facilitate safer movement around the construction site. This is especially important in environments where there are elevated surfaces or areas where equipment is operating, as it helps to prevent accidental falls and injuries.

While other options touch on important aspects of safety or construction, they do not capture the specific function of warning lines, which is to protect individuals by clearly indicating where caution should be exercised.