IRImplementing rule
CS ADR-DSN.D.340Location of holding bays, runway-holding positions, intermediate holding positions, and road-holding positions
(a)The distance between a holding bay, runway-holding position established at a taxiway/runway intersection or road-holding position and the centre line of a runway should be in accordance with Table D-2 and such that a holding aircraft or vehicle should not interfere with the operation of radio navigation aids or penetrate the inner transitional surface.
(b)At elevations greater than 700 m the distance of 90 m specified in Table D-2 for a precision approach runway code number 4 should be increased as follows:
(1)up to an elevation of 2 000 m; 1 m for every 100 m in excess of 700 m;
(2)elevation in excess of 2 000 m and up to 4 000 m; 13 m plus 1.5 m for every 100 m in excess of 2 000 m; and
(3)elevation in excess of 4 000 m and up to 5 000 m; 43 m plus 2 m for every 100 m in excess of 4 000 m.
(c)The location of a runway-holding position established in accordance with CS ADR-DSN.D.335 should be such that a holding aircraft or vehicle will not infringe the obstacle-free zone, approach surface, take-off climb surface or ILS/MLS critical/sensitive area or interfere with the operation of radio navigation aids.
| Type of runway | Code numberd | |||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Non-instrument | 30 m | 40 m | 75 m | 75 m |
| Non-precision approach | 40 m | 40 m | 75 m | 75 m |
| Precision approach Category I | 60 mb | 60 mb | 90 ma,b | 90 ma,b,c |
| Precision approach Categories II and III | — | — | 90 ma,b | 90 ma,b,c |
| Take-off runway | 30 m | 40 m | 75 m | 75 m |
| a. If a holding bay, runway-holding position, or road-holding position is at a lower elevation compared to the threshold, the distance may be decreased 5 m for every metre the bay or holding position is lower than the threshold, contingent upon not infringing the inner transitional surface. b. This distance may need to be increased to avoid interference with radio navigation aids, particularly the glide path and localiser facilities (see CS ADR-DSN.D.340). Note 1: The distance of 90 m for code number 3 or 4 is based on an aircraft with a tail height of 20 m, a distance from the nose to the highest part of the tail of 52.7 m and a nose height of 10 m holding at an angle of 45° or more with respect to the runway centre line, being clear of the obstacle-free zone and not accountable for the calculation of OCA/H. Note 2: The distance of 60 m for code number 2 is based on an aircraft with a tail height of 8 m, a distance from the nose to the highest part of the tail of 24.6 m and a nose height of 5.2 m holding at an angle of 45° or more with respect to the runway centre line, being clear of the obstacle-free zone. c. Where the code letter is F, this distance should be at least 100 m. Note: The distance of 100 m for code number 4 where the code letter is F is based on an aircraft with a tail height of 24 m, a distance from the nose to the highest part of the tail of 62.2 m and a nose height of 10 m holding at an angle of 45° or more with respect to the runway centre line, being clear of the obstacle-free zone. d. Elevation of taxiway should be taken into account for possible increase of the distances indicated in this table. | ||||
Table D-2. Minimum distance from the runway centre line to a holding bay, runway-holding position, or road-holding position
[Issue: ADR-DSN/3]
[Issue: ADR-DSN/6]
IR · CS ADR-DSN.D.340 — Regulation (EU) No 139/2014 · ED Decision 2022/006/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026