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Public-images-osm logo.svg runway = displaced_threshold
Suburban Airport Displaced Threshold.JPG
Section of a runway from the runway end to the displaced threshold, used for taxiing, take-off, and landing rollout, but not for touchdown.
Group: aeroways
Used on these elements
should not be used on nodesmay be used on waysshould not be used on areasshould not be used on relations (except multipolygon relations)
Useful combination
Status: de factoPage for proposal

A section of a aeroway=runway tagged with runway=displaced_threshold marks the area behind a displaced threshold, which is the part of runway that may be used for taxiing, take-off, and landing rollout, but not for touchdown. Displaced threshold is part of the aviation vocabulary​ indicating a runway threshold located at a point other than the physical beginning or end of the runway. It is indicated by a wide white line on the right edge of the highlighted section of the runway in the diagram below:

Runway diagram, Displaced threshold.png

The area behind a displaced threshold is a runway section which has the same quality as the runway and is usually marked with arrows instead of a straight centreline. These sections, if present, can occur on one or both ends of the runway proper. It is distinct from aeroway=stopway.

How to map

Draw a line way extending the runway — or split an existing runway at the displaced threshold if the runway already covers the area behind the displaced threshold — and add:

Usually this line way will sit exactly along the middle of the section(s) of the runway marked with arrows.

Additionally, on the node node where the runway=displaced_threshold section of the runway ends and the normal runway commences, aeroway=threshold can be tagged.

Mapping runway=displaced_threshold in JOSM (the red higlighted line). Note the arrows on the physical runway.

Tags to use in combination

See also