Assessment ScoreCard – 31 Day

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 ❌ (3,226)

Flights above 26k feet.

958 / 30.9 / 1.8 ❌ (753)

Flights between 16k and 26k feet

821 / 26.5 / 1.6 ❌ (352)

Flights between 13k and 15k feet

112 / 3.6 / 0.2 ✔

Flights between 7k and 12k feet

1,848 / 59.6 / 3.5 ❌ (558)

Flights between 6k and 7k feet

190 / 6.1 / 0.4 ❌ (156)

Flights between 5k and 6k feet

158 / 5.1 / 0.3 ✔

Flights between 4k and 5k feet

666 / 21.5 / 1.3 ❌ (272)

Flights between 3k and 4k feet

212 / 6.8 / 0.4 ❌ (190)

Flights below 3k feet

31 / 1.0 / 0.1 ✔

4 or more flights per hour

409 / 13.2 ❌ (207)

9 or more flights per hour

181 / 5.8 ❌ (78)

Departures between 1.5k and 15k feet

1,151 / 37.1 / 2.2 ❌ (413)

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 ❌ (17,441)

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.