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

13/02/2025 19:50:58

UK Postcode

ESHER , SURREY , KT10 9PG

Baseline geo-coordinates

51.3722 , -0.357635

Survey type

31 days prior to: 01-Sep-2024 @00:57:43

Assessment band

HIGH

Assessment actual value

19.56

Assessment description

Likely to encounter both night-time and day-time noise disturbances that are caused by high volumes of planes flying at at low altitude. Also expect a visual impact too.

Band range

Lower: 16.0 --> Upper: 20.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

4,996 / 161.2 / 9.5 (3,220)

Flights above 26k feet.

958 / 30.9 / 1.8 (755)

Flights between 16k and 26k feet

821 / 26.5 / 1.6 (350)

Flights between 13k and 15k feet

112 / 3.6 / 0.2

Flights between 7k and 12k feet

1,848 / 59.6 / 3.5 (547)

Flights between 6k and 7k feet

190 / 6.1 / 0.4 (155)

Flights between 5k and 6k feet

158 / 5.1 / 0.3

Flights between 4k and 5k feet

666 / 21.5 / 1.3 (274)

Flights between 3k and 4k feet

212 / 6.8 / 0.4 (191)

Flights below 3k feet

31 / 1.0 / 0.1

4 or more flights per hour

409 / 13.2 (206)

9 or more flights per hour

181 / 5.8 (78)

Departures between 1.5k and 15k feet

1,151 / 37.1 / 2.2 (399)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

80 / 2.6

Between 1am and 2am

46 / 1.5

Between 2am and 3am

21 / 0.7

Between 3am and 4am

21 / 0.7

Between 4am and 5am

22 / 0.7

Between 5am and 6am

104 / 3.4

Between 6am and 7am

257 / 8.3

Between 7am and 8am

308 / 9.9

Between 8am and 9pm

3,785 / 122.1 / 8.7

Between 10pm and 11pm

189 / 6.1

Between 11pm and Midnight

127 / 4.1

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

61 (30)

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

48 (43)

Minimum avg. distance in miles

0.49

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

124.0 / 60.0 / 6.5 (69)

Flight holding stack identified?

Yes

Altitude for all flights

14,325 (17,466)

Altitude of departures between 1.5k and 15k feet

4,740 (8,466)

Altitude of flights below 20k feet

9,360

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

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

21.70

Wednesdays between 9:00 and 10:00- 4 time(s) in 4 weeks. Approx:13 flight events.

21.00

Wednesdays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:12 flight events.

20.60

Thursdays between 9:00 and 10:00- 4 time(s) in 4 weeks. Approx:13 flight events.

20.30

Fridays between 9:00 and 10:00- 4 time(s) in 4 weeks. Approx:13 flight events.

19.30

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

19.00

Thursdays between 8:00 and 9:00- 4 time(s) in 4 weeks. Approx:11 flight events.

18.50

Saturdays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:12 flight events.

18.40

Wednesdays between 12:00 and 13:00 - 4 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: ESHER

UK Airport Count of Flights Percentage of Total
LONDON HEATHROW AIRPORT304861.0
TRANSATLANTIC FLIGHT?68113.6
LONDON STANSTED AIRPORT58711.8
LONDON LUTON AIRPORT2464.9
BRISTOL AIRPORT1853.7