ICAO DOC 8168
NOISE PREFERENTIAL RUNWAYS AND ROUTES
2.1 NOISE PREFERENTIAL RUNWAYS

2.1.1 Preferred runway directions for take-off and landing, appropriate to the operation, are nominated for noise abatement puposes, the objective being to utilize whenever possible those rnnways that permit aeroplanes to avoid noise-sensitive areas during the initial departure and final approach phases of flight.

2.1.2 Runways should not normally he selected for preferential use for landing unless they are equipped with suitable glide path guidance, e.g. ILS, or a visual approach slope indicator system for operations in visual meteorological conditions.

2.1.3 Noise abatement should not be the determining factor in runway nomination under the following circumstances:

a) if the runway surface conditions are adversely affected (e.g. by snow, slush, ice or water, mud, rubber, oil or other substances);
b) for landing in conditions when the ceiling is lower than 150 m (500 ft) above aerodrome elevation, or for takeoff and landing when the horizontal visibility is less than 1.9 km (1 NM);
c) when the crosswind component, including gusts, exceeds 28 kmh (15 kt);
d) when the tailwind component, including gusts, exceeds 9 kmih (5 kt); and
e) when wind shear has been reported or forecast or when adverse weather conditions, e.g. thunderstorms, are expected to affect the approach or departure.

NOTE: 2.1.3 b) Cloud ceiling is only a factor for landing, NOT for departure