Save Search

Note: Where available, the PDF/Word icon below is provided to view the complete and fully formatted document
 Download Current HansardDownload Current Hansard   

Previous Fragment    Next Fragment
Tuesday, 23 September 1997
Page: 8248

(Question No. 1665)


Mr Kelvin Thomson asked the Minister for Transport and Regional Development, upon notice, on 13 May 1997:

Have changes been made to flight paths in the vicinity of (a) Tullamarine and (b) Essendon Airports since 1 January 1997; if so, (i) what are the details and (ii) why.


Mr Sharp —The answer to the honourable member's question is as follows:

I am advised by Airservices Australia that no changes have been made to flight paths for aircraft departing from and arriving at Essendon Airport this year.

I am also advised by Airservices Australia that a number of modifications were made on 24 April 1997 to flight paths for aircraft departing from and arriving at Tullamarine Airport for safety and operational reasons. Details of the changes, and the reasons for them, are as follows.

(1) Standard Instrument Departure (SID) for aircraft departing to the north from Runway 34 for Perth:

Aircraft departing on this SID now turn left one nautical mile, rather than the previous five nautical miles, north of Tullamarine Airport and track south, rather than north, of Sunbury. The modification to the track was made for operational reasons to improve air traffic control coordination.

(2) Standard Instrument Departure for aircraft departing to the north from Runway 34 for destinations to the north-east and south-east:

From 24 April 1997 aircraft departing on this SID turned 30 to the right after passing 1,500 feet on climb and after passing the northern end of the runway. These aircraft previously maintained runway heading until approximately six nautical miles north of the airport. The modification to the track was made to enhance safety by minimising the potential for conflict between departing and arriving aircraft. A secondary benefit flowing from this change is an increase in the traffic handling capacity of the runway by allowing less distance between some consecutive departures.

Airservices Australia has since introduced a further minor modification to this track to avoid overflight of Oaklands Junction by departing aircraft. Aircraft are now required to maintain runway heading until two nautical miles north of the airport before commencing the turn.

(3) Standard Terminal Arrival Route (STAR) for aircraft arriving from the north to land from the east on Runway 27:

Aircraft arriving from the north on this STAR now turn onto an easterly heading approximately six nautical miles north of Tullamarine Airport. Previously aircraft arriving on this STAR turned onto a south-easterly heading approximately ten nautical miles north of the airport. The modification to the track was made to enhance safety by minimising the potential for conflict between aircraft tracking to join the final approach to runway 27 and aircraft already on the final landing approach.

(4) Standard Terminal Arrival Route for aircraft arriving from the west to land from the east on Runway 27:

Aircraft arriving from the west on this STAR previously took up an easterly heading from overhead Essendon Airport before turning left to intercept the approach path to runway 27. The modified track takes aircraft approximately 1.5 nautical miles south of Essendon Airport on an easterly heading before turning left onto a longer track to join the final landing approach to runway 27. The modification was made to allow aircraft to intercept the final approach path on a normal rate of turn compared with the previous, tighter turn.