CS HPT-DSN.F.600 Helicopter air taxiway markings and markers

(a)Applicability:

(1)The specifications for runway-holding position markings defined in CS ADR-DSN.L.575 and intermediate holding position marking defined in CS ADR-DSN.L.580 are equally applicable to taxiways intended for air taxiing of helicopters.

(2)The centre line of a helicopter air taxiway or, if not self-evident, the edges of a helicopter air taxiway, should be identified with markers or markings.

(b)Location:

(1)A helicopter air taxiway centre line marking or flush in-ground centre line marker should be located along the centre line of the helicopter air taxiway.

(2)Helicopter air taxiway edge markings should be located along the edges of a helicopter air taxiway.

(3)Helicopter air taxiway edge markers should be located at a distance of 1 m to 3 m beyond the edge of the helicopter air taxiway.

(c)Characteristics:

(1)A helicopter air taxiway centre line should be marked with a continuous yellow line 15 cm in width, when on a paved surface.

(2)The edges of a helicopter air taxiway, when on a paved surface, should be marked with continuous double yellow lines each 15 cm in width, and spaced 15 cm apart (nearest edge to nearest edge).

(3)Where a helicopter air taxiway is located on an unpaved surface and painted markings of a helicopter air taxiway centre line cannot be provided, it should be marked with flush in-ground 15 cm wide and approximately 1.5 m in length yellow markers, spaced at intervals of not more than 30 m on straight sections and not more than 15 m on curves, with a minimum of four equally spaced markers per section.

(4)Helicopter air taxiway edge markers, where provided, should be spaced at intervals of not more than 30 m on each side of straight sections and not more than 15 m on each side of curves, with a minimum of four equally spaced markers per section.

(5)Helicopter air taxiway edge markers should be frangible.

(6)Helicopter air taxiway edge markers should not penetrate a plane originating at a height of 25 cm above the plane of the helicopter air taxiway, at a distance of 1 m from the edge of the helicopter air taxiway and sloping upwards and outwards at a gradient of 5 per cent to a distance of 3 m beyond the edge of the helicopter air taxiway.

(7)A helicopter air taxiway edge marker should be of a colour (or colours) that contrasts (contrast) effectively against the operating background. The red colour should not be used for markers.

(8)If the helicopter air taxiway is to be used at night, helicopter air taxiway edge markers should be either internally illuminated or retro-reflective.