How should the aerodrome operator deduct these areas?
Answer
AMC1 ADR.OPS.B.005 aims that the aerodrome operator should ensure that assessment of the approach and departure areas is carried out which includes also cases when the aerodrome is located near a water/swampy area, or other difficult environment, or a significant portion of the approach/departure operations takes over these areas.
Within the 1 000 m, these areas should be defined considering the ‘obstacle limitation surfaces’ calculated according to the figures of ‘Divergence (each side)’ in CS ADR-DSN.J.480, Table J-1. ‘Dimensions and slopes of obstacle limitation surfaces — Approach runways’, adopting a trapezoidal shape with a 15-% angle for an instrument runway or a 10-% angle for a non‑instrument runway.
For a portion of approach or departure operations up to 8 km, these areas should be defined considering the protection envelopes of a published approach or departure procedure.