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What is the colour of a runway closed marking?
  • A
    White when displayed on a runway and yellow when displayed on a taxiway which is closed to the use of aircraft with a MTOM of more than 5700 kg.
  • B
    Yellow when displayed on a runway and white when displayed on a taxiway which is temporarily closed to aircraft with a MTOM of more than 5700 kg.
  • C
    Red when displayed on a runway or a taxiway which is permanently closed to the use of all aircraft.
  • D
    White when displayed on a runway and yellow when displayed on a taxiway which is permanently closed to the use of all aircraft.

Refer to figure.

ICAO Annex 14
Chapter 7. Visual Aids for Denoting Restricted Use Areas
7.1 Closed runways and taxiways, or parts thereof

Characteristics
7.1.4 The closed marking shall be of the form and proportions as detailed in Figure 7-1, Illustration a), when displayed on a runway, and shall be of the form and proportions as detailed in Figure 7-1, Illustration b), when displayed on a taxiway. The marking shall be white when displayed on a runway and shall be yellow when displayed on a taxiway.

Note.— When an area is temporarily closed, frangible barriers or markings utilizing materials other than paint or other suitable means may be used to identify the closed area.

7.1.5 When a runway or taxiway or portion thereof is permanently closed, all normal runway and taxiway markings shall be obliterated.

7.1.6 Lighting on a closed runway or taxiway or portion thereof shall not be operated, except as required for maintenance purposes.

7.1.7 In addition to closed markings, when the runway or taxiway or portion thereof closed is intercepted by a usable runway or taxiway which is used at night, unserviceability lights shall be placed across the entrance to the closed area at intervals not exceeding 3 m (see 7.4.4).

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