Aircraft Noise over SE23 (2020/21)

Seasonal aircraft noise /flight path update Part 2- London City. City airport flies low over us in east wind conditions - such as the past 5 days or so, and frequency is well down on peak in 2019 for obvious reasons. But they expect to come back strongly.

The SE23 problem is that they fly a noisy single track and accurate line at 1600-2000 feet directly through SE23, over the same homes every time. They designed this arrivals path in 2015 against minimal protest, since they gave this concentration of flight paths minimal publicity.

As with Heathrow, London City now have to redesign all paths, both takeoffs and landings, and there is a chance that the SE23 situation will improve. These are the Design Principles agreed with the CAA. Forest Hill Society made strong representations into the Design Principles. We did not get everything we wanted agreed, but there are some hopeful points.

’Avoid overflying communities with multiple routes, including from other airports’ is key. Because we have something similar recently agreed by Heathrow. So in theory they must work together to stop SE23 being under both of their arrivals routes. We’ll see; this is going to take some time.

We did not persuade them to commit to a Continuous Descent Approach, ie stay much higher for much longer. This, we think , is because as their CEO said a couple of weeks ago ‘We need Heathrow to lift their lid’. That is bad news. Making altitude and noise improvement by City airport conditional on Heathrow flying higher is the start of an airport blame game we do not want to see.

One commitment in the Design Principles should bring respite for SE23. ’Provide predictable respite routes’. London City is ahead of Heathrow in the airspace design process, and I and their Consultative Committee have very recently had advance sight of some very early draft route designs. City are clearly considering a second flight path over SE London, which would enable their flights over SE23 to be alternated between two paths in some way - effectively halving their traffic for those living under the current path. Good news for some, but perhaps less so for others.

But if they can combine the extra paths with flying higher for longer and create air space where they do not cross flight paths with Heathrow over the same communities that would seem to me to be as good an outcome as we can get.

So campaigning wise, we don’t have anything to shout about at the moment, but I’m sure there will be a massive bunfight when all of this goes to public consultation! As I mentioned in my update for the Forest Hill Society, we should expect LB Lewisham to be helping to fight our corner when needed, as well as MPs Ellie Reeves and Janet Daby.

So seasonal greetings to everyone here who has taken an interest, it has been great to have occasional feedback, it is a slow process and we will continue with discussions in 2022 I’m sure.

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This seems at odds with one of the general principles of concentrated flightpaths, which seems to be that it’s better politically to annoy fewer people and load all the pain onto a smaller minority.

Nevertheless they have both agreed this principle.:man_shrugging:

Both airports aim to minimise the numbers of people ‘newly overflown’ as well. And both realise that sometimes Design Principles can oppose each other. So the process will involve judgements and compromises which ACOG and the CAA will oversee. Hence my reference to bunfights!

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If I am outside locally and planes are flying overhead, I take a noise measurement on my phone using the ExPlane App. I was reading notes about the App and I see that Rotterdam City Council has accepted the App as providing useful and objective data on aircraft disturbance. Is anyone aware of any similar arrangement in the UK? Does anyone know what data is used by Mayor Khan? As far as I am aware City Hall has no environmental officers of its own, and we know that Lewisham doesn’t take noise measurements, so it appears that organs or government would rely on data from the airports.

all airports have multiple fixed noise monitors set up around them and report in detail against their noise objectives, set by their local authority. They also use mobile monitors from time to time -eg I think you were involved when London City noise consultants set up a mobile monitor on the Dulwich/Forest Hill border a couple of years ago.

There was an interesting webinar by UECNA on what equipment you would need to do it yourself a month or so ago. UECNA.EU

ICCAN’s authoritative report on measurement of aviation noise and the metrics used is here. A review of aviation noise metrics and measurement - ICCAN