PHAK 14: Airport Operations Flashcards
Chevrons
Yellow markings aligned with the runway that show pavement areas that are unusable for landing, takeoff, and taxing.
Blast-Pad, Stop-Way, Overrun Area
Demarcation Bar
Yellow bar that delineates a runway with a displaced threshold from a blast pad, stop-way, or taxiway that precedes the runway.
Displaced Threshold
A threshold located at a point on the runway other than the designated beginning of the runway.
What does a Displaced Threshold reduce?
Reduces the runway length available for landings.
What can a Displaced Threshold be used for?
Takeoff.
Landings from the opposite direction.
Runway Threshold Bar
White bar that delineates the beginning of the runway that is available for landing when the threshold has been relocated or displaced.
What do Runway Threshold Markings identify?
The beginning of runway that is available for landing.
How many Runway Threshold Marking stripes are there?
What do Runway Threshold Markings look like?
Stripes of uniform dimensions.
The number of stripes is related to the width of the runway.
What are the dimensions of Runway Threshold Markings?
150 feet long and 5.75 feet wide
Runway Number and Designation
Determined from the approach direction.
White, whole number of the magnetic azimuth of the centerline of the runway clockwise from magnetic north.
The letter differentiates between left (L), right (R), or center (C) parallel runways, if applicable.
Runway Centerlines
Identifies the center of the runway with white lines and provides alignment guidance during takeoff and landings.
What do Runway Touchdown Zone Markings do?
Identifies the touchdown zone for aircraft.
Describe Runway Touchdown Zone Markings?
Groups of one, two, and three white rectangular bars symmetrically arranged in pairs about the runway centerline.
How far apart are Runway Touchdown Zone Markings spaced?
Spaced in 500 feet increments.