Assessment ScoreCard – 31 Day

Aircraft Traffic Assessment: 31 Day Scorecard



The symbol indicates the measure is better than the average when compared with other assessed
UK postcodes. The ❌ represents the opposite. Assessed averages are shown in brackets.

See: for a full explanation about the Assessment scorecard.

Assessment Scorecard headlines

All Assessments are based on an ambient background noise of 40 decibels i.e. a quiet residential area. If your property is located near to a busy road i.e. 70-75 decibels, the noise impact from aircraft will be significantly reduced, whilst the road remains busy.

Note: Airborne aircraft noise is typically in the range of 45dB - 65dB for heights below 26,000 feet and for a duration of 30-50 seconds. Whereas the average car, bus or HGV the duration is only a few seconds.

Date of survey

01/07/2023 09:20:19

UK Postcode

SOUTH-HACKNEY , LONDON , E9 7AH

Baseline geo-coordinates

51.5436 , -0.04451

Survey type

31 days prior to: 01-Jul-2023 @07:58:52

Assessment band

HIGH

Assessment actual value

18.75

Assessment description

Sound equates to a busy "A" road or Dual Carriageway i.e. regular traffic that will be noticeable at peak times which includes evenings and weekends. Location is on a primary flight corridor or busy flight route or in a flight holding stack area. At times there will be multiple flight occurrences within the same hour, typically between 4-15. Some of the flights will be below 7000 feet.

Band range

Lower: 16.0 --> Upper: 20.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

3,088 / 99.6 / 5.9

Flights above 26k feet.

693 / 22.4 / 1.3

Flights between 16k and 26k feet

262 / 8.5 / 0.5

Flights between 13k and 15k feet

118 / 3.8 / 0.2

Flights between 7k and 12k feet

133 / 4.3 / 0.3

Flights between 6k and 7k feet

264 / 8.5 / 0.5 (155)

Flights between 5k and 6k feet

862 / 27.8 / 1.6 (227)

Flights between 4k and 5k feet

481 / 15.5 / 0.9 (274)

Flights between 3k and 4k feet

72 / 2.3 / 0.1

Flights below 3k feet

203 / 6.5 / 0.4

4 or more flights per hour

194 / 6.3

9 or more flights per hour

126 / 4.1 (78)

Departures between 1.5k and 15k feet

190 / 6.1 / 0.4

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

25 / 0.8

Between 1am and 2am

24 / 0.8

Between 2am and 3am

10 / 0.3

Between 3am and 4am

17 / 0.5

Between 4am and 5am

13 / 0.4

Between 5am and 6am

44 / 1.4

Between 6am and 7am

129 / 4.2

Between 7am and 8am

188 / 6.1

Between 8am and 9pm

2,482 / 80.1 / 5.7

Between 10pm and 11pm

58 / 1.9

Between 11pm and Midnight

55 / 1.8

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

20

Percentage of overflying occuring Out-Of-Hours and at Weekends

37

Minimum avg. distance in miles

0.49

Number of possible disruptions by; day / out-of-hours / hour

68.0 / 25.0 / 3.6

Flight holding stack identified?

No

Altitude for all flights

13,213 (17,466)

Altitude of departures between 1.5k and 15k feet

5,902 (8,466)

Altitude of flights below 20k feet

6,757 (8,790)

Busiest times of day
(Distruption: 0 - low, 25+ high)

Day of week, time, frequency and number of flight events.

12.25

Fridays between 15:00 and 16:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

11.13

Thursdays between 19:00 and 20:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

10.63

Fridays between 13:00 and 14:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

9.25

Tuesdays between 21:00 and 22:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

6.13

Fridays between 14:00 and 15:00 - 4 time(s) in 4 weeks. Approx:4 flight events.

26.67

Fridays between 11:00 and 12:00 - 3 time(s) in 4 weeks. Approx:15 flight events.

20.83

Sundays between 15:00 and 16:00 - 3 time(s) in 4 weeks. Approx:11 flight events.

19.67

Fridays between 9:00 and 10:00- 3 time(s) in 4 weeks. Approx:11 flight events.

Our scorecard is designed to provide a greater understanding how the assessment was reached for your selected UK post code. To enable you to validate our assessment we also provide up to 10 occurrences when we believe the disruption will be at its highest.

For those that would like to perform their own analysis we can also provide the low level flight data that includes the length of time a plane existed inside your select airspace bubble.



Evidence by associated Airport – indicative only: SOUTH-HACKNEY

UK Airport Count of Flights Percentage of Total
LONDON HEATHROW AIRPORT150248.6
NON UK AIRPORT32810.6
LONDON CITY AIRPORT1605.2
LONDON GATWICK AIRPORT1404.5
BRISTOL AIRPORT1193.9
MANCHESTER AIRPORT1003.2
BIRMINGHAM INTERNATIONAL AIRPORT963.1
MINOR UK AIRPORT?872.8
LONDON STANSTED AIRPORT722.3
EAST MIDLANDS AIRPORT581.9
FARNBOROUGH AIRPORT481.6
EDINBURGH AIRPORT451.5
GLASGOW INTERNATIONAL AIRPORT351.1
GEORGE BEST BELFAST CITY AIRPORT341.1
TRANSATLANTIC FLIGHT?331.1