Runway Markings

Threshold Marking

Application

9.2.2.4.1   A threshold marking shall be provided at the threshold of a paved instrument runway, and of a paved non-instrument runway where the code number is 3 or 4 and the runway is intended for use by international commercial air transport.

9.2.2.4.2   Recommendation

9.2.2.4.3   Recommendation

Note — The ICAO Aerodrome Design Manual, Part 4, shows a form of marking which has been found satisfactory for the marking of downward slopes immediately before the threshold.

Location

9.2.2.4.4   The stripes of the threshold marking shall commence 6 m from the threshold.

Characteristics

9.2.2.4.5   A runway threshold marking shall consist of a pattern of longitudinal stripes of uniform dimensions disposed symmetrically about the centre line of a runway as shown in ICAO Annex 14 Vol. I, Figure 5-2 (A) and (B) for a runway width of 45 m. The number of stripes shall be in accordance with the runway width as follows:

Runway Width Number Of Stripes
18m 4
23m 6
30m 8
45m 12
60m 16

except that on non-precision approach and non-instrument runways 45 m or greater in width, they may be as shown in ICAO Annex 14 Vol. I, Figure 5-2 (C). 9.2.2.4.6 The stripes shall extend laterally to within 3 m of the edge of a runway or to a distance of 27 m on either side of a runway centre line, whichever results in the smaller lateral distance. Where a runway designation marking is placed within a threshold marking there shall be a minimum of three stripes on each side of the centre line of the runway. Where a runway designation marking is placed above a threshold marking, the stripes shall be continued across the runway. The stripes shall be at least 30 m long and approximately 1.80 m wide with spacings of approximately 1.80 m between them except that, where the stripes are continued across a runway, a double spacing shall be used to separate the two stripes nearest the centre line of the runway, and in the case where the designation marking is included within the threshold marking this spacing shall be 22.5 m.