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Representing rural residents in Banjup, Jandakot, and Treeby


Second Runway for Perth Airport

Posted by Ian Thurston on June 14, 2018 at 5:10 AM Comments comments (0)

Notice of Major Development Plan

A notice of public consultation about a proposed second runway for Perth Airport was delivered to post boxes in Banjup in the week of 11 June 2018; you can download a copy here.  Public comment on the proposal closes on 24 August 2018.

The second runway will run 2 km east of and parallel to the existing main runway, as shown in the project summary booklet:

Perth Airport expects the new runway will become operational some time between 2023 and 2025, depending on regulatory approval. The project summary booklet implies that Airservices Australia will begin design work on new flight paths for the runways in 2020.

For Banjup, Jandakot, and Treeby, the main consideration arising from the second runway will be its impacts on flight paths and the associated noise nuisance. Until Airservices publishes its proposals, say in 2021 or 2022, we can only guess at what the impacts might be. With that clearly in mind, what follows is possible:

When winds are blowing from the west, aircraft approach the main Perth airport runway from the north north east but when winds blow from the east aircraft approach from the south south west, which is why we see more aircraft over our area in the summer, when easterlies prevail.

Aircraft must approach Perth airport runways along fixed ‘glide paths’ that are 3° to the ground and in a direct line to the landing runway. Aircraft enter the glide path at an altitude of 1,000 metres, which implies they must be 19 km from touch down. In the south, this is at Hebe Road.

To line up to begin the glide path at Hebe Road, jets arriving from the east track along Gibbs Road and those from the west track along Russell Road before turning north over Banjup.

Perth airport’s second runway will be 2 km to the east of the existing main runway. If the glide path is similar to the current glide path, then it will be 2 km east of Hebe Road and begin about 2 km north of the intersection of Armadale and Nicholson Roads. Aircraft will likely approach over Rowley Road and turn north over Nicholson Road. The map below illustrates the possible flight paths over our area:

All this likely means that the noise nuisance from aircraft using the second runway will have little impact on our area.

However, the second runway could be of some benefit to our area. In 2017, there were 131,000 movements at Perth airport. By 2025, there will be 172,000 movements. If those movements are split evenly between the 2 main runways and their glide paths, then each would carry 86,000 movements. Hence, Banjup, Jandakot, and Treeby would have about a third less aircraft flying over us.

Your Committee welcomes your thoughts as to the implications for our area.

Aircraft Noise South of Armadale Road

Posted by Ian Thurston on March 24, 2012 at 12:30 PM Comments comments (1)

Banjup residents will have been disturbed by light aircraft flying south over the past few weeks. Sometimes noisy planes fly over south Banjup every minute or so at 1,000 feet.

Your Committee has contacted Jandakot Airport Operations and Air Services Australia(who run the control tower) to discover why there has been a dramatic increase in over-flights when there have been almost none before. Having rejected the drivel we received from Air Services Australia, we eventually received a plausible answer from Jandakot Operations:

“Our parallel [i.e. the main] runways 24/06are used 70% to 80% of the year and aircraft departing to the south track over Thomsons Lake. However, in summer and particularly over the last two months or so the easterly wind has been blowing almost everyday and our runway 12 has been in use. When this runway is in use, departing aircraft to the south do in fact depart over Banjup. They have departed in this manner for many years but perhaps because the easterly wind has blown so consistently of late it has been more noticeable. With the arrival of autumn, the easterlies should soon cease and I believe that the air traffic over Banjup will decrease accordingly.”

A check of the Bureau of Meteorology’s Jandakot weather observations here confirms that easterlies have been blowing most days in February and March.

It is unclear why pilots taking off from runway 12 cannot turn westwards north of Armadale Road and still track over Thomsons Lake as they do when westerlies are blowing. Your Committee will take this up with Air Services Australia through the ‘Community Aviation Consultative Group’ here that we hope to join soon.

Banjup residents can see real time and historical flights passing over Banjup from Jandakot Airport on the Web Trak facility at http://webtrak.bksv.com/per .

Aircraft Noise

Posted by Ian Thurston on June 4, 2011 at 12:32 AM Comments comments (3)

Members who attended the May General Meeting will recall that the meeting was informed that the increased commercial aircraft noise over Banjup was due to runway works at Perth airport that would be completed within a few weeks and that diverted aircraft would then return to their usual flights paths (ie not over Banjup). I must report that this is NOT the case.

The runway works at Perth airport completed on 4 June were never the cause of aircraft flying over Banjup. Air Services Australia in November 2008 permanently changed flight paths around Perth and one approach for arriving aircraft takes them directly over Banjup, typically tracking along the eastern end of Gibbs Road and then turning north to track along Boronia Road and thence directly to Perth airport.

Apparently, Air Services Australia conducted the Western Australia Route Review Project (WARRP) which was a comprehensive review of airspace use, flight routes, and aviation procedures across Western Australia. The review was undertaken between 2006 and 2008 and included public consultation. Changes were implemented in November 2008. You can find the report here.

The WARRP report tells how flight paths over Perth were changed because of increased traffic at Perth airport and to make flights safer, given the increased use of Jandakot airport and Pearce airbase. Diagrams of the changes are here. You will see that paths were added to bring arriving planes over Banjup. You can see months of real time aircraft movements using an application named Webtrak, which is here. If you set the calendar in the bottom left corner to, say, 30 May 11 at 0830, then you will see simulations of the flights into Perth airport at that time. Set the replay speed slider to 10 and zoom in on the map so that Banjup is in the middle and you can read the street names. You will see that many planes turn directly up Boronia Road. If you want to see what planes are going over you right now, then check the current flights box in the left corner panel.

The extent of public consultation afforded to Banjup residents in 2006 is not clear but it would have been best to have made our views known then. However, it is also not clear why aircraft turn right over Boronia Road when they could equally well turn right between Taylor and Nicholson Roads which is over pasture land and would disturb significantly fewer people. If you wish the Banjup Residents Group Committee to take this up with Air Services Australia, then please add your comments below on this page.