These signs provide information on locating terminals, runways, civil aviation areas and cargo areas. Destination Signs: Destination signs have a yellow background, black inscription and contain arrows.Location signs are black with yellow lettering, a yellow border and no arrows. Location Signs: These signs are used to pinpoint a taxiway or airport runway location, the boundary of the runway or an instrument landing system critical area.The black writing identifies the designation of the intersecting taxiway(s) leading out of an intersection. Direction Signs: Direction signs have a yellow background with black writing.They provide pilots with information on things that cannot be seen from the control tower, applicable radio frequencies and noise lessening procedures. Information Signs: Information signs have a yellow background with black writing.Mandatory Instruction Signs: These airport signs have a red background with white lettering and indicate an entrance to a runway, critical area or prohibited area.Looking at an airport runway, you’ll notice there are signs just about everywhere. While airport runway markings are painted on the surface of a runway, signs can either be vertical or painted on the surface as well. Holding position markings are placed on runways prior to the intersection with another runway, or another point. A sign with white lettering on a red background is placed adjacent to these holding position markings. Runway Holding Position Markings: These markings are used only if the runway is normally used by ATC for “land and hold short” or taxiing operations and are important for those operations.White arrowheads are situated across the width of the runway before the threshold bar. White arrows are located along the centerline in the area between the beginning of the runway and displaced threshold. Displaced Threshold: A displaced threshold is located at a point on the runway other than the beginning of the runway.These markings are either eight stripes placed symmetrically about the runway centerline, or the number of stripes is related to the runway’s width. Runway Threshold Markings: Runway threshold markings come in two layouts.This bar is 10 feet wide and extends across the runway’s width. Runway Threshold Bar: A threshold bar presents the beginning of the runway available for landing if the threshold has been relocated or displaced.This identifies pavement areas neighboring the runway side that are not intended for airplane use. Runway Shoulder Markings: Runway shoulder stripes may be used to supplement runway side stripes.Runway Side Stripe Marking: Runway side stripe markings are white markings outlining the edges of a runway.These markings are grouped into one, two and three rectangular bars arranged in pairs about the centerline. Runway Touchdown Zone Markers: These markings pinpoint the touchdown for landing operations and are coded to provide distance information.There are two rectangular markings with a large white stripe on either side of the runway centerline about 1,000 feet from the landing threshold. Runway Aiming Point Marking: The aiming point marking is used for a landing airplane. It consists of a line of 120-foot stripes and 80-foot gaps.
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