GM1 ADR.OPS.B.071(a)(2) Closed runways and taxiways, or parts thereof

• ED Decision 2024/004/R found in: Aerodromes (139/2014) Part-ADR.AR Part-ADR.OR Part-ADR.OPS CS-ADR-DSN CS-HPT-DSN (Dec 2024)

GM1 ADR.OPS.B.071(a)(2) Closed runways and taxiways, or parts thereof ED Decision 2024/004/R CLOSED RUNWAY AND TAXIWAY MARKINGS — AVOIDING THE LACK OF CONTRAST (a) In certain circumstances, e.g. due to the colour of the material used during construction works, there may be insufficient contrast between the colour of the surface of the runway or taxiway and the colour of the respective closed runway or taxiway marking, even though the latter conforms to the applicable specifications. This may result in the closed runway or taxiway markings not fulfilling their purpose. To avoid the lack of contrast, the closed runway or taxiway markings need to be included in an appropriate border, whose colour is black. (b) At aerodromes where operations take place at night, the closed runway or taxiway markings would be made with reflective materials designed to enhance their visibility. Guidance on reflective materials is given in Part 4 ‘Visual Aids’ of ICAO Doc 9157 ‘Aerodrome Design Manual’. *[applicable from 24 May 2025 – ED Decision 2024/004/R]* ##### GM1 ADR.OPS.B.071(a)(2) Closed runways and taxiways, or parts thereof *ED Decision 2024/004/R* **CLOSED RUNWAY AND TAXIWAY MARKINGS — AVOIDING THE LACK OF CONTRAST** (a) In certain circumstances, e.g. due to the colour of the material used during construction works, there may be insufficient contrast between the colour of the surface of the runway or taxiway and the colour of the respective closed runway or taxiway marking, even though the latter conforms to the applicable specifications. This may result in the closed runway or taxiway markings not fulfilling their purpose. To avoid the lack of contrast, the closed runway or taxiway markings need to be included in an appropriate border, whose colour is black. (b) At aerodromes where operations take place at night, the closed runway or taxiway markings would be made with reflective materials designed to enhance their visibility. Guidance on reflective materials is given in Part 4 ‘Visual Aids’ of ICAO Doc 9157 ‘Aerodrome Design Manual’.