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

07/07/2025 09:51:42

UK Postcode

WOOLWICH-SOUTH-0625 , LONDON , SE18 6UF

Baseline geo-coordinates

51.483 , 0.066849

Survey type

31 days prior to: 06-Jun-2025 @23:26:34

Assessment band

INTERMITTENT

Assessment actual value

6.38

Assessment description

Will encounter some day-time noise disturbances that are caused by the volumes of planes overflying Also expect a possible visual impact too.

Band range

Lower: 4.0 --> Upper: 7.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

1,396 / 45.0 / 2.6 ✔

Flights above 26k feet.

721 / 23.3 / 1.4 ✔

Flights between 16k and 26k feet

139 / 4.5 / 0.3 ✔

Flights between 13k and 15k feet

52 / 1.7 / 0.1 ✔

Flights between 7k and 12k feet

15 / 0.5 / 0.0 ✔

Flights between 6k and 7k feet

83 / 2.7 / 0.2 ✔

Flights between 5k and 6k feet

256 / 8.3 / 0.5 ❌ (230)

Flights between 4k and 5k feet

98 / 3.2 / 0.2 ✔

Flights between 3k and 4k feet

9 / 0.3 / 0.0 ✔

Flights below 3k feet

23 / 0.7 / 0.0 ✔

4 or more flights per hour

48 / 1.5 ✔

9 or more flights per hour

2 / 0.1 ✔

Departures between 1.5k and 15k feet

30 / 1.0 / 0.1 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

22 / 0.7

Between 1am and 2am

15 / 0.5

Between 2am and 3am

9 / 0.3

Between 3am and 4am

15 / 0.5

Between 4am and 5am

30 / 1.0

Between 5am and 6am

62 / 2.0

Between 6am and 7am

94 / 3.0

Between 7am and 8am

77 / 2.5

Between 8am and 9pm

940 / 30.3 / 2.2

Between 10pm and 11pm

62 / 2.0

Between 11pm and Midnight

35 / 1.1

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

19 ✔

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

62 ❌ (44)

Minimum avg. distance in miles

0.49

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

14.0 / 9.0 / 0.7 ✔

Flight holding stack identified?

No

Altitude for all flights

22,431 ✔

Altitude of departures between 1.5k and 15k feet

13,112 ✔

Altitude of flights below 20k feet

8,072 ❌ (8,780)

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

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

8.50

Mondays between 22:00 and 23:00 - 3 time(s) in 4 weeks. Approx:4 flight events.

4.17

Wednesdays between 8:00 and 9:00- 3 time(s) in 4 weeks. Approx:2 flight events.

15.75

Tuesdays between 6:00 and 7:00- 2 time(s) in 4 weeks. Approx:9 flight events.

9.50

Sundays between 5:00 and 6:00- 2 time(s) in 4 weeks. Approx:5 flight events.

8.00

Fridays between 9:00 and 10:00- 2 time(s) in 4 weeks. Approx:4 flight events.

7.75

Tuesdays between 19:00 and 20:00 - 2 time(s) in 4 weeks. Approx:5 flight events.