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The aviation industry is using satellite navigation technology to introduce SMART Approaches at Auckland Airport. SMART approaches enable aircraft to burn less fuel, emit less carbon dioxide and fly more quietly.
Aircraft manufacturers are also working on reducing the environmental impacts of air travel, by building quieter, more fuel efficient planes.
Auckland Airport, Airways New Zealand and the Board of Airline Representatives New Zealand (BARNZ) have been working together to trial new flight paths, called SMART approaches, into the airport.
The SMART Approaches use satellite-based navigation and enable aircraft to burn less fuel, emit less carbon dioxide and fly more quietly. They contribute to international aviation carbon dioxide-emission reduction proposals and are aligned with the Government’s National Airspace and Air Navigation Plan.
The SMART Approaches help Auckland to be better connected to the rest of New Zealand and the world. They are in line with global developments and safely enable the growth of Auckland Airport, which is vital to New Zealand’s economy.
Three new SMART Approaches to Auckland Airport (two from the north and one from the south) were trialled in 2012 and 2013, and subjected to rigorous analysis and noise measurement. A draft report on the trial was published in May 2014 and Aucklanders were invited to provide feedback on it. A series of consultation forums were held to receive submissions and a final report on the trial was published in December 2014.
As a direct result of feedback from the trial and public consultation, the two trial SMART Approaches from the North, known as ‘Green X23’ and ‘Blue X23’, were modified to a higher altitude and a wider approach curve – to reduce aircraft noise, use even less fuel and increase efficiencies – before they came into permanent operation on 28 May 2015. The SMART Approach from the South, known as ‘Red Y23’, has continued to be flown since the trial’s conclusion and was approved for use between 7am and 10pm in the trial’s final report in December 2014.
Airways New Zealand, Auckland Airport and BARNZ also agreed in the final report to investigate whether it is possible to design an additional SMART flight path for trial from the South, and to trial a new SMART flight path from the North. The trial of the new SMART flight path from the North, known as ‘Yellow U23’, commenced on 1 September 2015 and concluded on 31 August 2016. The Yellow U23 trial flight path was used between 7am and 10pm by up to 10 aircraft per day. Aircraft have now stopped using the Yellow U23 trial flight path and a draft report on the trial will be prepared and published for public consultation. The draft report will evaluate aircraft performance; airspace management; operational benefits ̶ including time, distance, fuel and carbon emission savings; noise monitor results; and public feedback.
The Yellow U23 trial flight path was higher and its approach curve wider than the SMART flight paths that were trialled in Auckland in 2012 and 2013. These two changes meant the trial flight path would reduce aircraft noise, use even less fuel and deliver benefits for the environment. The trial flight path also enabled Airways New Zealand to distribute air traffic across a variety of inbound routes.