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

06/08/2024 16:51:25

UK Postcode

SHAD-THAMES-0823 , LONDON , SE1 2BB

Baseline geo-coordinates

51.5019 , -0.071178

Survey type

31 days prior to: 01-Sep-2023 @00:32:35

Assessment band

HIGH

Assessment actual value

17.38

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

4,629 / 149.3 / 8.8 ❌ (3,156)

Flights above 26k feet.

594 / 19.2 / 1.1 ✔

Flights between 16k and 26k feet

260 / 8.4 / 0.5 ✔

Flights between 13k and 15k feet

109 / 3.5 / 0.2 ✔

Flights between 7k and 12k feet

15 / 0.5 / 0.0 ✔

Flights between 6k and 7k feet

14 / 0.5 / 0.0 ✔

Flights between 5k and 6k feet

403 / 13.0 / 0.8 ❌ (212)

Flights between 4k and 5k feet

2,453 / 79.1 / 4.7 ❌ (235)

Flights between 3k and 4k feet

371 / 12.0 / 0.7 ❌ (191)

Flights below 3k feet

410 / 13.2 / 0.8 ✔

4 or more flights per hour

425 / 13.7 ❌ (201)

9 or more flights per hour

199 / 6.4 ❌ (75)

Departures between 1.5k and 15k feet

19 / 0.6 / 0.0 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

23 / 0.7

Between 1am and 2am

18 / 0.6

Between 2am and 3am

15 / 0.5

Between 3am and 4am

4 / 0.1

Between 4am and 5am

13 / 0.4

Between 5am and 6am

31 / 1.0

Between 6am and 7am

242 / 7.8

Between 7am and 8am

237 / 7.6

Between 8am and 9pm

3,867 / 124.7 / 8.9

Between 10pm and 11pm

97 / 3.1

Between 11pm and Midnight

60 / 1.9

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

26 ✔

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

43 ✔

Minimum avg. distance in miles

0.49

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

124.0 / 54.0 / 6.5 ❌ (67)

Flight holding stack identified?

No

Altitude for all flights

9,088 ❌ (17,559)

Altitude of departures between 1.5k and 15k feet

12,642 ✔

Altitude of flights below 20k feet

5,063 ❌ (8,838)

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

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

24.00

Thursdays between 18:00 and 19:00 - 4 time(s) in 4 weeks. Approx:13 flight events.

20.70

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

18.90

Wednesdays between 19:00 and 20:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

18.50

Thursdays between 19:00 and 20:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

18.40

Mondays between 12:00 and 13:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

18.30

Tuesdays between 21:00 and 22:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

17.90

Mondays between 13:00 and 14:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

17.70

Thursdays between 20:00 and 21:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

17.00

Thursdays between 17:00 and 18:00 - 4 time(s) in 4 weeks. Approx:9 flight events.