What distinguishes a red light from a green light at the airfield?

In the context of airfield operations, red and green lights serve crucial roles in ensuring safety and guiding drivers. A red light signifies that drivers must stop or are not allowed to enter a specific area. It serves as a clear warning that there is a potential hazard or restriction in place. Conversely, a green light indicates that it is safe to proceed, which means drivers can move forward with caution. This color coding is vital for maintaining safe traffic flows and preventing accidents on the airfield.

The distinction is important, as misunderstanding these signals could lead to dangerous situations. Red means there is a clear halt needed due to potential danger, whereas green provides the assurance that conditions are safe for movement. The clarity of this signaling system is essential for maintaining safety protocols in busy airfield environments.