What are the colors of the edge of the manoeuvring area?

The colors of the edge of the manoeuvring area are typically marked with a red and white checked pattern. This distinct marking serves a critical purpose in aviation, as it helps to clearly delineate the boundary of the active operational area where aircraft are allowed to taxi and maneuver. The use of red and white is standardized to enhance visibility for pilots and ground personnel, thereby improving safety by reducing the chances of incursions into restricted areas. The contrasting colors help ensure that operators can easily recognize the boundary from a distance, particularly in diverse weather conditions or low visibility.

The other color options do not correspond to standard markings for the manoeuvring area, which could lead to confusion and safety risks on the airfield. Each of those colors might have different designations in other contexts but is not used for the edge of the manoeuvring area in aviation.