ANEF charts are contour maps that show a forecast of aircraft noise levels that are expected to exist in the future. ANEFs are primarily used by state, territory and local government planning agencies for land use zoning purposes. They are prepared for all of the major and regional airports, and most of the minor aerodromes that have a large number of annual movements. Section 5 of the Commonwealth Airports Act 1996 defines an ANEF for an airport to mean an ‘ANEF endorsed in the manner approved by the Minister’. Section 71(2)(d) of the Act outlines the contents of airport Master Plans and stipulates that an ANEF forms part of these contents.
The Master Plan and ANEF cycle is currently 5 years for Sydney (Kingsford-Smith) Airport, Melbourne (Tullamarine) Airport, Brisbane Airport and Perth Airport. Any other federally leased airport will be required to compile a Master Plan and ANEF every 8 years. Other non-federally leased airports are also able to develop Master Plans and ANEFs. However, they do not have time restrictions placed upon them. As per Appendix B1 of Australian Standard 2021:2015 – Acoustics – Aircraft noise intrusion – Building siting and construction, these non-federally leased aerodromes can still use an ANEF to assist in identifying areas where noise sensitive development should be controlled, and to help to ensure the long term development and sustainability of airport operations.
The figure below shows the recently endorsed ANEF for Sydney Airport for 2039.
ANEI charts are contour maps that show actual, historical aircraft noise levels over a given period of time, where the specific numbers and types of aircraft that operated at the aerodrome are known. An ANEI shows the average daily aircraft noise exposure index around the aerodrome for that year (AS2021:2015, Appendix A3). Airservices has historically completed the quarterly and annual ANEI charts and associated reports for Sydney Airport, which are available on the Australian Noise Exposure Index Reports page.
Technical endorsement of ANEFs and ANEIs by Airservices
Consistent with part (x) of Ministerial Direction M37/99, Airservices is responsible for endorsing the technical accuracy of ANEFs and ANEIs for all Australian airports.
Manner of endorsement
Airservices Airport and Environmental Assurance (AEA) Team considers a number of assumptions and inputs when conducting technical endorsements of ANEFs. These assumptions and inputs can be found in the updated ‘manner of endorsement’ document approved by the former Minister Infrastructure and Transport in April 2017.
Airservices (‘the endorser’) must be satisfied with the following assumptions and inputs when deciding whether to endorse an ANEF, (as per the ‘manner of endorsement’ document above):
- that the appropriate selection of aircraft types for the airport have been used as input data;
- that the runway usage and flight path data used as an input to the model are ‘operationally suitable for the airport’ (this is usually confirmed in writing by Airservices air traffic control staff familiar with that airport);
- that the forecast numbers of aircraft movements, operating times and the aircraft types carrying out operations are not greater than the physical ultimate capacity of the existing or proposed runway/s, using accepted and published methodologies;
- that the contours have been modelled correctly;
- that the proponent has demonstrated they have paid ‘due regard’ to all issues raised by state and local government authorities in relation to the ANEF; and
- any other matter the endorser considers relevant in deciding whether to endorse the ANEF.
Data requests for ANEF preparation
In order to begin the ANEF preparation process, airports and their consultants usually request recent sets of aircraft movement data for their airport from Airservices Noise and Flight Path Monitoring System (NFPMS). In order to request this data, please complete and submit a tailored data order form via the Airservices website.
Please note that sufficient time should be allowed for the data request process (eg. 4-6 weeks), prior to commencing preparation of an ANEF. This is to ensure that a standard Airservices data licence (legal agreement) is completed between Airservices and the airport. The data requested will then be compiled by Airservices AEA Team and sent by email to the airport (or their consultant).
Airservices strongly recommends that airports/consultants notify Airservices AEA Team via email NoiseEnviroTeam@AirservicesAustralia.com, 1-2 months prior to submitting an ANEF information package for endorsement, to identify any issues early on and ensure that proposed timelines can be agreed and met.
ANEF Submission Readiness Checklist
Airservices has developed an ANEF Submission Readiness Checklist which provides guidance to airport and their consultants on the particular aspects of ANEFs that Airservices reviews when conducting its technical endorsement. Please ensure that this checklist has been reviewed and completed prior to submitting an ANEF package to Airservices for endorsement. At a minimum, Airservices requires the following information to be submitted as part of an ANEF information package for technical endorsement:
- A complete copy of the ANEF noise study modelling files,
- An ANEF technical report and appendices.
All ANEF technical endorsement submissions and queries should be sent to NoiseEnviroTeam@AirservicesAustralia.com. Email attachment size restriction is 20MB, please compress larger files or send files in multiple emails with the same subject line.
Timing of ANEF technical endorsement
Allow 10-12 weeks for the ANEF technical endorsement process. This time frame starts only when the full ANEF information package is submitted by an airport (or their consultant) for technical endorsement. If Airservices finds any issue with the ANEF information package that needs further clarification, this time frame will be paused until that information is received by Airservices.
Signature of final ANEF charts by Airservices Manager
In order to complete the ANEF chart endorsement process, Airservices AEA team will provide airports (or their consultants) with electronic copies of the relevant Airservices signature block for inclusion on the electronic version of the chart. The airport/consultant will then be responsible for printing out three physical copies of the chart (usually as A1 size), and delivering them to the appropriate Airservices location for physical signature by the relevant Airservices manager. The AEA Team can advise the airport/consultant who the relevant manager is, on an airport by airport basis. Ensure you leave 1-2 days for this process at the end of your ANEF preparation schedule.
Transition from INM to AEDT software
Airservices is planning to transition from using the US Federal Aviation Administration’s (US FAA’s) Integrated Noise Model (INM) to the Aviation Environmental Design Tool (AEDT) as its preferred software for noise modelling in the near future. Visit the Federal Aviation Administration website for more information on AEDT.
More information on this transition period will be provided on this website and directly to key stakeholders shortly.