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

03/06/2025 15:29:28

UK Postcode

BECKENHAM-EAST-KELSEY-PARK , LONDON , BR3 6ND

Baseline geo-coordinates

51.4025 , -0.020847

Survey type

31 days prior to: 03-Jun-2025 @00:44:17

Assessment band

HIGH

Assessment actual value

17.53

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

5,737 / 185.1 / 10.9 ❌ (3,218)

Flights above 26k feet.

749 / 24.2 / 1.4 ✔

Flights between 16k and 26k feet

209 / 6.7 / 0.4 ✔

Flights between 13k and 15k feet

91 / 2.9 / 0.2 ✔

Flights between 7k and 12k feet

1,453 / 46.9 / 2.8 ❌ (547)

Flights between 6k and 7k feet

848 / 27.4 / 1.6 ❌ (155)

Flights between 5k and 6k feet

1,999 / 64.5 / 3.8 ❌ (227)

Flights between 4k and 5k feet

309 / 10.0 / 0.6 ❌ (274)

Flights between 3k and 4k feet

17 / 0.5 / 0.0 ✔

Flights below 3k feet

62 / 2.0 / 0.1 ✔

4 or more flights per hour

511 / 16.5 ❌ (206)

9 or more flights per hour

285 / 9.2 ❌ (78)

Departures between 1.5k and 15k feet

1,882 / 60.7 / 3.6 ❌ (399)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

25 / 0.8

Between 1am and 2am

15 / 0.5

Between 2am and 3am

9 / 0.3

Between 3am and 4am

8 / 0.3

Between 4am and 5am

17 / 0.5

Between 5am and 6am

62 / 2.0

Between 6am and 7am

218 / 7.0

Between 7am and 8am

304 / 9.8

Between 8am and 9pm

4,605 / 148.5 / 10.6

Between 10pm and 11pm

329 / 10.6

Between 11pm and Midnight

119 / 3.8

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

22 ✔

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

55 ❌ (43)

Minimum avg. distance in miles

0.53

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

157.0 / 88.0 / 8.3 ❌ (69)

Flight holding stack identified?

No

Altitude for all flights

10,883 ❌ (17,462)

Altitude of departures between 1.5k and 15k feet

8,421 ❌ (8,468)

Altitude of flights below 20k feet

7,252 ❌ (8,793)

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

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

22.20

Sundays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:13 flight events.

20.90

Sundays between 21:00 and 22:00 - 4 time(s) in 4 weeks. Approx:12 flight events.

20.40

Sundays between 20:00 and 21:00 - 4 time(s) in 4 weeks. Approx:12 flight events.

20.20

Sundays between 19:00 and 20:00 - 4 time(s) in 4 weeks. Approx:12 flight events.

19.90

Sundays between 8:00 and 9:00- 4 time(s) in 4 weeks. Approx:12 flight events.

19.70

Sundays between 9:00 and 10:00- 4 time(s) in 4 weeks. Approx:12 flight events.

18.90

Saturdays between 14:00 and 15:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

18.80

Saturdays between 21:00 and 22:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

18.70

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