CS ADR-DSN.L.525 Runway designation marking
ED Decision 2016/027/R
(a) Applicability: A runway designation marking should be provided at the thresholds of a runway.
(b) Location and positioning: A runway designation marking should be located at a threshold as shown in Figure L-1 as appropriate.
(c) Characteristics:
(1) A runway designation marking should consist of a two-digit number and on parallel runways should be supplemented with a letter.
(i) On a single runway, dual parallel runways and triple parallel runways, the two-digit number should be the whole number nearest the one-tenth of the magnetic North when viewed from the direction of approach.
(ii) On four or more parallel runways, one set of adjacent runways should be numbered to the nearest one-tenth magnetic azimuth and the other set of adjacent runways numbered to the next nearest one-tenth of the magnetic azimuth.
(iii) When a runway designation marking consists of a single digit number, it should be preceded by a zero.
(2) In the case of parallel runways, each runway designation number should be supplemented by a letter as follows, in the order shown from left to right when viewed from the direction of approach:
(i) for two parallel runways: ‘L’ ‘R’;
(ii) for three parallel runways: ‘L’ ‘C’ ‘R’;
(iii) for four parallel runways: ‘L’ ‘R’ ‘L’ ‘R’;
(iv) for five parallel runways: ‘L’ ‘C’ ‘R’ ‘L’ ‘R’ or
‘L’ ‘R’ ‘L’ ‘C’ ‘R’; and
(v) for six parallel runways: ‘L’ ‘C’ ‘R’ ‘L’ ‘C’ ‘R’.
(3) The numbers and letters should be in the form and proportion shown in Figure L-2. The dimensions should be not less than those shown in Figure L-2. Where the numbers are incorporated in the threshold marking, larger dimensions should be used in order to fill adequately the gap between the stripes of the threshold marking.
Figure L-1. Runway designation, centre line and threshold markings
Figure L-2. Form and proportions of numbers and letters for runway designation markings
[Issue: ADR-DSN/3]