Environment
- Environment Home
- E-Change Program
- Audit
- Aircraft Emissions
- Management of Aircraft on the Ground
- Predicting and Managing Delays
- Monitoring Australia's Airspace
- Continuous Descent Approaches
- Green Approaches
- Flextracks
- Computer Simulation
- Airspace Management from Gate to Gate
- The Benefits of Gate to Gate Management
- How Air Traffic Management has Traditionally Worked
- Some Causes for Airport Delays
- The Brisbane Green Project
- The Challenge of Growth
- What is RNP?
- Environmental Savings from the Brisbane Green Project
- Sequencing Efficiency
Green Approaches
Green Approaches allow aircraft to fly paths that are tailored to the performance of the aircraft.
Traditional approaches rely upon aircraft flying along straight paths between ground-based navigation beacons.
The high precision approaches use the sattellite navigation systems now being fitted to aircraft resulting in better fuel efficiency and lower emissions and noise levels.
Their precision means that there is less need to hold aircraft on arrival and wait for the weather to improve. The approaches also help aircraft avoid terrain and weather constraints.
Green Approaches have been trialled successfully at Brisbane Airport in 2007 (The Brisbane Green Project). The trial demonstrated a reduction in fuel use, emissions and noise. Estimated cumulative savings in flight times are 4200 minutes; achieved through a 173,000 nautical mile reduction in distance flown.