How is a displaced threshold depicted on a runway?

A displaced threshold on a runway is an area where the landing portion of the runway is shifted further down the runway, allowing for the use of a portion of the runway for takeoff but not for landing. This is important for safety and operational reasons, especially in cases where obstacles might be present at the beginning of the runway.

The correct representation of a displaced threshold is through the use of white arrows or arrowheads. These markings are painted on the runway surface to indicate to pilots where the actual landing zone begins, which is further along the runway than the threshold itself. By showing white arrows leading into the solid white line of the threshold, pilots can understand precisely where they should begin their landing approach while still having a portion of the runway available for takeoffs.

In comparison, other options like red and white cones may be used to denote other types of restrictions or areas on the airport surface, green markers usually indicate taxiways or specific guidance, and a solid white line could be confused with regular runway divisions. Hence, utilizing white arrows/arrowheads specifically communicates the operational distinctions of a displaced threshold effectively to pilots.