Markings for paved runways and taxiways
58.—(1) Two or more white crosses, as illustrated in this paragraph,
displayed on a runway or taxiway, with each arm of each cross at an angle of 45° to the centre line of the runway, at intervals of not more than 300 metres signify that the section of the runway or taxiway marked by them is unfit for the movement of aircraft.
(2) Subject to paragraph (3), two yellow broken lines and two continuous lines, as illustrated
in this paragraph, signify the designated visual holding position associated with a runway beyond which no part of a flying machine or vehicle shall project in the direction of the runway without permission from the air traffic control unit at the aerodrome during the notified hours of watch of that unit.
(3) Outside the notified hours of watch of that unit or where there is no air traffic control unit at the aerodrome the markings referred to in paragraph (2) signify the position closest to the runway beyond which no part of a flying machine or vehicle shall project in the direction of the runway when the flying machine or vehicle is required by virtue of rule 42(3) to give way to aircraft which are taking off from or landing on that runway.
Subject to paragraph (5), a yellow marking, as illustrated in this paragraph,
signifies a holding position other than that closest to the runway beyond which no part of a flying machine or vehicle shall project in the direction of the runway without permission from the air traffic control unit at the aerodrome during the notified hours of watch of that unit.
(4) Outside the notified hours of watch of that unit or where there is no air traffic control unit at the aerodrome the marking referred to in paragraph (4) may be disregarded.
(5) Orange and white markers, as illustrated in this paragraph,
spaced no more than 15 metres apart, signify the boundary of that part of a paved runway, taxiway or apron which is unfit for the movement of aircraft.