What do large yellow chevrons on a runway indicate?

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Large yellow chevrons on a runway are designed to indicate unusable portions of the runway. These markings are strategically placed to ensure pilots are aware that the section of the runway they are observing cannot be used for takeoffs or landings, either due to physical obstructions or because the surface is not safe to operate on.

The chevrons serve as visual guidance to promote safety and prevent accidents by clearly delineating areas that should not be utilized by aircraft. This is particularly important in situations where pilots may need to make critical decisions about their landing or takeoff paths. Understanding the significance of these markings is essential for maintaining awareness of runway conditions and ensuring smooth operations at an airport.