Consultation by NATS

Relevant parts of the consultation document

Areas of interest

This location falls within the airspace used by flights to/from London City Airport  where we are proposing changes between 4,000ft and 7,000ft. Select the next tab to learn more about today’s air traffic patterns.

Today's flights

The map below shows where today’s air traffic flies. Click the options above to see maps showing London City Airport (LCY) flight paths or flight paths to/from all airports. You can also highlight the boundaries of National Parks and Areas of Outstanding Natural Beauty (AONB). Select the next tab to see our consultation swathes.

This figure illustrates all today’s flight paths from a normal week; the coloured shading indicate the average number of flights.   The figure shows flight paths for all the flights in the region, including those to/from Heathrow, Gatwick, Stansted and Luton airports, all of which are significantly busier than London City; we have provided this information because this other traffic may be noticed, and so that you can understand the overall traffic pattern.  You will see that no overland areas in the region are completely free of aircraft flying overhead.

These plots show all flights, not just those between 4,000ft and 7,000ft.  We have not limited the altitude because aircraft above/below this altitude band may be noticed in and around the area of interest, and because we want to give you a sense of the overall traffic pattern – where flights are going to and coming from.

Today's flights

The map below shows where today’s air traffic flies. Click the options above to see maps showing London City Airport (LCY) flight paths or flight paths to/from all airports. You can also highlight the boundaries of National Parks and Areas of Outstanding Natural Beauty (AONB). Select the next tab to see our consultation swathes.

This figure illustrates all today’s flight paths from a normal week; the coloured shading indicate the average number of flights.   The figure shows flight paths for all the flights in the region, including those to/from Heathrow, Gatwick, Stansted and Luton airports, all of which are significantly busier than London City; we have provided this information because this other traffic may be noticed, and so that you can understand the overall traffic pattern.  You will see that no overland areas in the region are completely free of aircraft flying overhead.

These plots show all flights, not just those between 4,000ft and 7,000ft.  We have not limited the altitude because aircraft above/below this altitude band may be noticed in and around the area of interest, and because we want to give you a sense of the overall traffic pattern – where flights are going to and coming from.

Today's flights

The map below shows where today’s air traffic flies. Click the options above to see maps showing London City Airport (LCY) flight paths or flight paths to/from all airports. You can also highlight the boundaries of National Parks and Areas of Outstanding Natural Beauty (AONB). Select the next tab to see our consultation swathes.

This figure illustrates today’s London City and London Biggin Hill flight paths from a normal week; the coloured shading indicate the average number of flights.

The arrows illustrate the general direction of the predominant air traffic flows; black arrows show London City Departures to the south and white arrows show London City and Biggin Hill Arrivals from all directions. The location of the arrows broadly indicates the portion of the routes where aircraft are typically between 4,000ft and 7,000ft, although aircraft can be at 7,000ft earlier or later depending on traffic conditions and aircraft performance.
These plots show all flights, not just those between 4,000ft and 7,000ft. We have not limited the altitude because aircraft above/below this altitude band may be noticed in and around the area of interest, and because we want to give you a sense of the overall traffic pattern – where flights are going to and coming from.

Today's flights

The map below shows where today’s air traffic flies. Click the options above to see maps showing London City Airport (LCY) flight paths or flight paths to/from all airports.  This map shows  the boundaries of National Parks and Areas of Outstanding Natural Beauty (AONB). Select the next tab to see our consultation swathes.

This figure illustrates today’s London City and London Biggin Hill flight paths from a normal week; the coloured shading indicate the average number of flights.

The arrows illustrate the general direction of the predominant air traffic flows; black arrows show London City Departures to the south and white arrows show London City and Biggin Hill Arrivals from all directions. The location of the arrows broadly indicates the portion of the routes where aircraft are typically between 4,000ft and 7,000ft, although aircraft can be at 7,000ft earlier or later depending on traffic conditions and aircraft performance.
These plots show all flights, not just those between 4,000ft and 7,000ft. We have not limited the altitude because aircraft above/below this altitude band may be noticed in and around the area of interest, and because we want to give you a sense of the overall traffic pattern – where flights are going to and coming from.

Consultation swathes

This map shows the arrivals for London City Airport between 4,000ft and 7,000ft. You can see the departures for London City Airport by selecting the toggle above.

The coloured areas show the swathes within which we need to position a route. You can zoom in on specific areas by clicking on the map. More information can be found in the additional notes box. Select the next tab for information on aircraft noise, or click the links to the consultation document above for more detail.

Additional notes

The coloured shading on the map denote the consultation swathe for positioning the London City and London Biggin Hill arrivals between 4,000 and 7,000ft.

The final positions of the routes within these areas will be determined after consultation feedback has been analysed.  The position of the routes will determine how areas within the shaded regions are impacted; areas beneath the final routes would expect more overflights than today, and areas away from the routes would expect fewer.

Table E1 shows the potential number of flights that could pass directly overhead if the route was positioned overhead.  This is a pessimistic prediction as it assumes all aircraft are kept on the route in question rather than being vectored off it by air traffic control, which in reality would occur some of the time.

 

Route

2016

2020

2025

Arrival day time
(0620-2200)

10

11

11

Arrival night time
(2200-0620)

closed

Table E1: Forecast for route usage (London City and London Biggin Hill)

Numbers are hourly averages.

See paragraph 4.13 for discussion of opening times and Appendix H for a more detailed traffic breakdown

 

Table E2 provides Lmax noise information for the typical and noisiest aircraft regularly flying to/from London City.  More noise information can be found in Appendix J.  Lmax is the maximum noise at ground level from an aircraft flying directly overhead.  The Lmax values may be compared to Table E3 for everyday equivalents.  Additional overflight videos are provided on the webpage to help stakeholders understand what aircraft at various altitudes may look and sound like.

 

Aircraft type

% of flights

4,000-5,000ft

5,000-6,000ft

6,000-7,000ft

Typical
E190/E170[1]

46

56-57 dBA

55-56 dBA

<55dBA

Noisiest
A318

1.4

59-61 dBA

57-59 dBA

56-57 dBA

Table E2: Typical Noise (Lmax) (Arrivals) at various heights[2]

 

 

Noise

Noise level (dBA)

Chainsaw, 1m distance

110

Disco, 1m from speaker

100

Diesel truck pass-by, 10m away

90

Kerbside of busy road, 5m away

80

Vacuum cleaner, distance 1m

70

Conversational speech, 1m

60

Quiet office

50

Room in quiet, suburban area

40

Table E3: Tables of Lmax Equivalents

 

Source: Airports Commission, based substantially on www.sengpielaudio.com/TableOfSoundPressureLevels.htm



[1] Includes the following aircraft types: Embraer 170/175/190/195 (Ancon category, 70-90 seat regional jet)

[2] This table shows Lmax at a height above ground level.  Local elevation should be taken into account. See footnote 21 on page E24

Consultation swathes

This map shows the departures for London City Airport between 4,000ft and 7,000ft. You can see the arrivals for London City Airport by selecting the toggle above.

The coloured areas show the swathes within which we need to position a route. You can zoom in on specific areas by clicking on the map. More information can be found in the additional notes box. Select the next tab for information on aircraft noise, or click the links to the consultation document above for more detail.

Additional notes

The coloured shading on the map denote the consultation swathe for positioning the London City departures between 4,000 and 7,000ft.

The final positions of the routes within these areas will be determined after consultation feedback has been analysed.  The position of the routes will determine how areas within the shaded regions are impacted; areas beneath the final routes would expect more overflights than today, and areas away from the routes would expect fewer.

Table E4 shows the potential number of flights that could pass directly overhead if the route was positioned overhead.  This is a pessimistic prediction as  it assumes all aircraft are kept on the route in question rather than being vectored off it by air traffic control; which in reality would occur some of the time.

Route 2016 2020 2025
S’bound departure day time
(0630-2210)

4

5

5

S’bound departure night time
(2210-0630)

closed

Table E4: Forecast for route usage (London City) – Numbers are hourly averages - see paragraph 4.13 for discussion of opening times – see Appendix H for a more detailed traffic breakdown

Table E5 provides Lmax noise information for the typical and noisiest aircraft regularly flying to/from London City.  More noise information can be found in Appendix J.  Lmax is the maximum noise at ground level from an aircraft flying directly overhead.  The Lmax values may be compared to Table E6 for everyday equivalents.  Additional overflight videos are provided on the webpage to help stakeholders understand what aircraft at various altitudes may look and sound like.

Aircraft type

%

4,000-5,000ft

5,000-6,000ft

6,000-7,000ft

TypicalE190/E170[1]

46

61-64 dBA

58-61 dBA

56-58 dBA

NoisiestA318

1.4

63-66  dBA

60-63  dBA

59-60  dBA

Table E5: Typical Noise (Lmax) (Departures) at various heights[2]

Noise

Noise level (dBA)

Chainsaw, 1m distance

110

Disco, 1m from speaker

100

Diesel truck pass-by, 10m away

90

Kerbside of busy road, 5m away

80

Vacuum cleaner, distance 1m

70

Conversational speech, 1m

60

Quiet office

50

Room in quiet, suburban area

40

Quiet library

30

Table E6: Tables of Lmax Equivalents based on

Source: Airports Commission, based substantially on www.sengpielaudio.com/TableOfSoundPressureLevels.htm


[1] Includes the following aircraft types: Embraer 170/175/190/195 (Ancon category, 70-90 seat regional jet)

[2] This table shows Lmax at a height above ground level.  Local elevation should be taken into account.

Noise

We have provided videos that aim to illustrate aircraft flying overhead at various altitudes; these include a range of aircraft types. For detailed noise tables see Appendix J of the consultation document or click the links to the consultation document above for more detail on the proposal.

Noise

We have provided videos that aim to illustrate aircraft flying overhead at various altitudes; these include a range of aircraft types. For detailed noise tables see Appendix J of the consultation document or click the links to the consultation document above for more detail on the proposal.

Noise

We have provided videos that aim to illustrate aircraft flying overhead at various altitudes; these include a range of aircraft types. For detailed noise tables see Appendix J of the consultation document or click the links to the consultation document above for more detail on the proposal.

Noise

We have provided videos that aim to illustrate aircraft flying overhead at various altitudes; these include a range of aircraft types. For detailed noise tables see Appendix J of the consultation document or click the links to the consultation document above for more detail on the proposal.

Noise

We have provided videos that aim to illustrate aircraft flying overhead at various altitudes; these include a range of aircraft types. For detailed noise tables see Appendix J of the consultation document or click the links to the consultation document above for more detail on the proposal.