What is a displaced threshold in aviation?

A displaced threshold is a threshold located at a point on the runway other than the designated beginning of the runway. Displacement of a threshold reduces the length of runway available for landings. White arrows are located along the centerline in the area between the beginning of the runway and displaced threshold.

What operations are permitted on a displaced threshold?

A displaced threshold is available for taxing, landing rollout, and takeoff, but not landing.

How is a displaced threshold marked?

Ground Marking and Lights A displaced threshold is marked by: A stripe showing the displaced threshold. Arrows along the centre line. Arrowheads across the width of the runway just prior the stripe in case of temporary displaced threshold.

What is the length of the displaced threshold for runway 22?

What is the length of the displaced threshold for runway 22 at Toledo (TDZ)? 380 feet.

Where is the displaced threshold on a runway?

A displaced threshold is a threshold located at a point on the runway other than the designated beginning of the runway. Displacement of a threshold reduces the length of the runway available for landings. [ ICAO Annex 14 Vol 1, Definitions] A threshold not located at the extremity of a runway.

What does ICAO Annex 14 vol 1 attachment a mean?

[ ICAO Annex 14 Vol 1 Attachment A §3.3] Where a runway is provided with a clearway (CWY), then the TODA will include the length of clearway. [ ICAO Annex 14 Vol 1 Attachment A §3.4] Where a runway is provided with a stopway (SWY), then the ASDA will include the length of stopway.

How is the displacement of a threshold declared?

A threshold displacement is declared from the physical start of the runway direction. The position of the displaced threshold is encoded as a RunwayCentrelinePoint with the role equal-to ‘ DISTHR ‘ (see page Basic Data for Runway Direction (FATO Direction) ).

What does ICAO mean by runway declared distance?

Displaced threshold – A threshold not located at the extremity of a runway. The definitions of each declared distance, also defined by ICAO, are presented below: TORA – The length of runway declared available and suitable for the ground run of an aircraft taking off. TODA – The length of TORA plus length of the CWY, if provided.