EANAB Summary of To70 Report April 2019 Summary During - PowerPoint PPT Presentation

EANAB Summary of To70 Report April 2019

Summary • During Consultation for an Airspace Change Proposal from Edinburgh Airport Ltd in 2016? Some Communities had reported increased noise over their areas and asked “What has Changed” • To70 indicated there was a 15% increase in traffic and a gradual switch in use between GOSAM and TALLA. EANAB add that there has also been a 52% increase in passenger numbers and a resulting 33% increase in plane load Also that on runway 06 departures flights have slowed between 2012 and 2018 • To70 indicated that there were large consistent departures from published SID routes below 7000ft –SID routes which were used in the ACP to produce the presented noise maps • To70 also indicated that flight profiles of speed and altitude used in ANCON noise modelling differ from actual aircraft profiles

Background • To70 were given flight statistics and radar data from 2011 to 2018 by EAL and some noise footprints used by EAL in the ACP • No further noise modelling has as yet been undertaken however in CAP1736 ERCD drew the following conclusion “Any airport, where noise is an issue or which is contemplating making an airspace change where noise will be a consideration, should satisfy themselves, using a qualified external party if required, about the validity and reliability of their noise data and input data for noise modelling and create a reliable baseline before starting any process and should note that such considerations and validations will form part of the CAA’s airspace change decision making analysis.”

Flight Paths in 2015

Comparison of Jet and Turbo departures shows later turns and a shift by jets to a more direct route after initial turn

GOSAM1D 06 runway radar measured average track flown assumed SID

GOSAM1D 06 runway individual flight tracks

GOSAM1D 06 runway SEL noise footprint

TALLA6C runway 24 radar measured average track flown assumed SID

TALLA6C runway 24 individual flight tracks

TALLA6C runway 024 SEL noise footprint

To70 data shows profile differences between individual SID routes

EANAB advises that new noise modelling should take all these observations into account. Assumed track position and assumed vertical profiles of speed and height must be representative of actual operations on all SIDs.

Progress on Community Concerns around Aircraft Noise (June 2019) • Following the rejection of Edinburgh Airport’s last ACP application for more and different flightpaths in 2018 the following is a summary of some ongoing work. • Edinburgh have initiated a new ACP application. • Following concerns and confusion from communities on noise maps (ACP, NAP) EANAB found problems with assumptions used to describe how aircraft fly. • In response to EANAB’s initial study CAA recommended “Any airport, where noise is an issue or which is contemplating making an airspace change where noise will be a consideration, should satisfy themselves, using a qualified • external party if required, about the validity and reliability of their noise data and input data for noise modelling and create a reliable baseline before starting any process and should note that such considerations and validations will form part of the CAA’s airspace change decision making analysis.” • An Independent Study was then commissioned by EANAB funded by Edinburgh Airport which found that yes, some of the concerns were justified. • New noise maps are yet to be made and the CAA has yet to respond to the independent findings. EAL have however committed to using radar track data from Edinburgh airport for future mapping and EANAB is working to ensure that the maps presented are as meaningful as possible to the communities. • The current 3-way conversation (ERCD+EANAB+EAL) about the updated noise modelling is one of EANAB’s key contributions to its role as EAL’s adviser.

Improving the noise maps • Previously Gatwick airport was used as the model for Edinburgh • EAL have now committed to using radar track data from Edinburgh airport for future mapping and • NEW maps have been commissioned by EAL of average noise (Laeq) from all of the different aircraft events over the summer • EANAB have further suggested that members of the public find averages very difficult to relate to and have requested that single event footprint maps for each major aircraft type on each flight path be prepared and supplied to the public. This would allow a more direct understanding of noise from each aircraft type in each area. Note: the average maps are built from adding and averaging all the single event footprint maps.

Reports For more detail please read the full To70 Independent Study Available on the EANAB website http://www.eanab.org.uk/