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Wednesday, 22 August 1984
Page: 191

(Question No. 860)


Senator Macklin asked the Minister representing the Minister for Aviation, upon notice, on 1 May 1984:

(1) What are the designated flight paths for Brisbane Airport.

(2) Have there been any reported incidents of aircraft deviating from these designated paths.

(3) What are the proposed flight paths for the new Brisbane Airport.

(4) Has any noise testing been conducted on existing and/or proposed flight paths; if not, why not; if so, what were the results.

(5) Are there any routes which would drop noise over the Sandgate, Deagon and Shorncliffe areas.


Senator Gietzelt —The Minister for Aviation has provided the following answers to the honourable senator's questions:

(1) Flight paths for departing instrument flight rules category aircraft are designated in the aeronautical information publication, 'Terminal Area Procedures', in the form of Standard Instrument Departures (SID). A total of 63 SID are provided for various destinations and are allocated initially by air traffic control as part of an airways clearance for each departing aircraft in this category.

Arriving aircraft may be on either of four main trunk routes or nine other routes. Aircraft which are above 5,700 kilograms maximum take-off weight or are jet engined, are radar vectored, weather and traffic permitting, in accordance with preferred noise abatement routes which are also specified in the aeronautical information publication.

(2) Weather conditions or traffic complexity and the over-riding consideration of safety on some occasions necessitate the use of other than the preferred routes for both arriving and departing aircraft.

(3) Work is shortly to commence on drafting the flight paths for the redeveloped airport, following finalisation of land acquisition for the siting of navigation aids.

(4) Sound level monitoring has been conducted on an ad hoc basis at the existing airport. A recent example is the tests which were carried out when the A300 Airbus commenced operations to Brisbane Airport. The results of these tests were as follows:

Measured Noise Levels at the Nearest Residences to Brisbane Airport

Noise Level, maximum decibels (on the 'A' weighted scale) on the general aviation parking area near the south western boundary of the airport

Average noise level corrected to location of nearest residence

Airbus Operation

Landing

RWY 22 69, 62,

67

Take-off

RWY 04 85, 79,

83

Other Aircraft Types

Landing

B737 74

72

Take-off

B727 101

99

B737 102

100

DC9 96

94

(5) Overflights of the Sandgate, Deagon and Shorncliffe areas do occur, but the small number of noise complaints recorded indicates that the use of special routes to avoid them would not be justified at present. The situation may need to be reviewed when operations commence from the redeveloped airport.