Canberra, Australia: Green Operations
In Canberra, the community reported a 10 dba reduction in noise (this equates to approximately 50% reduction in perceived noise) due to the new curved RNP flight paths that guide the planes around the populated areas.
Problem
- Large noise abatement areas
- Military airspace restrictions
- Terrain obstacles in critical locations
- Runway construction made ILS unusable on RWY 35
Solution
- RNP procedures lowered decision heights
- RNP approach to RWY 35 compensated for construction displacement of runway threshold
- RNP procedures avoided physical and airspace obstacles
Technical Details
- Elevation: 1886 feet/575 meters
- Coordinates: 35° 18'25" S, 149° 11'42"E
- DA(H) for RWY 17
- before: VOR/NDB 1376' HAT
- after: RNP 0.1 250' HAT (1126' improvement)
- DA(H) for RWY 35
- before: ILS 230' HAT w/4.6% climb in missed approach
- after: RNP 0.1 441' HAT w/engine-out missed approach