Tag:aeroway=holding_position

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Public-images-osm logo.svg aeroway = holding_position
Taxiway 8253.JPG
Description
A point behind which aircraft are considered clear of a crossing way Edit or translate this description.
Group: Aeroways
Used on these elements
may be used on nodesmay be used on waysshould not be used on areasshould not be used on relations
Wikidata
Status: in use

A holding position is a location on the airport surface, marked by a painted surface markings and signage, which an aircraft may be instructed either to stop at or clear (as when exiting a runway). There are three types of holding position markings: runway, ILS critical area, and intermediate (or taxiway/taxiway). Though the terminology varies slightly, both the FAA and ICAO use all three types of holding position markings, and the symbology for each is the same.

Types of Holding Positions

Runway holding positions identify the runway safety area. At controlled airports, these markings - commonly called hold lines - indicate where an aircraft is to stop if the aircraft does not have permission to enter the runway. When exiting a runway, an aircraft is not considered clear of that runway until all parts of the aircraft have crossed the holding position. The runway holding position marking is painted across the runway or taxiway and consists of two solid lines on the taxiway side and two dashed lines on the side of the runway safety area.

ILS critical area holding positions are used to protect Instrument Landing System (ILS) signals. When necessary, Air Traffic Control will instruct an aircraft to hold short of the runway at the marking - or, when existing the runway, clear the ILS marking - to ensure the aircraft does not block or interfere with the ILS signals. The ILS surface marking consists of two lines painted across the taxiway, in between which are pairs of lines painted along the taxiway.

Intermediate, or taxiway/taxiway holding positions are located at the intersection of two taxiways. Intermediate holding positions are used to ensure adequate clearance from aircraft crossing on an intersecting taxiway. The surface marking is a single yellow broken line painted across the taxiway.

How to Map

Holding positions may be marked either with a node node at the intersection of the painted surface marking at the taxiway centerline, or with a way way drawn along the painted holding position surface marking. Where the holding position marking is not straight, is at the intersection of multiple taxiways, or is not orthogonal to the taxiway, a way is preferred to a node.

Each holding position marking is tagged with aeroway=holding_position. The type of holding position marking can optionally be included with the following tags:

Note

Not the same as a Holding pattern (a maneuver designed to delay an aircraft already in flight while keeping it within a specified airspace).

See also

  • Taxiway on Wikipedia with information on holding positions and other markings.
  • ICAO Annex 14 volume 1 - Aerodromes § 5.2.10 and 5.2.11 where can be found detailed documentation.