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

26/09/2022 09:46:17

UK Postcode

LITTLE-VENICE , LONDON , W9 1SQ

Baseline geo-coordinates

51.5265 , -0.179603

Survey type

31 days from the 1st date shown in the Evidence table below .

Assessment band

OCCASIONAL

Assessment actual value

4.79

Assessment description

Sound equates to a "C" road or an active country lane i.e. irregular traffic volumes. Location is on a flight route as opposed to a flight corridor. Some of the flights will be below 7000 feet and could occur at evenings and weekends.

Band range

Lower: 4.0 --> Upper: 7.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

1,282 / 41.4 / 2.4 ✔

Flights above 26k feet.

763 / 24.6 / 1.4 ❌ (630)

Flights between 16k and 26k feet

187 / 6.0 / 0.4 ✔

Flights between 13k and 15k feet

134 / 4.3 / 0.3 ✔

Flights between 7k and 12k feet

85 / 2.7 / 0.2 ✔

Flights between 6k and 7k feet

41 / 1.3 / 0.1 ✔

Flights between 5k and 6k feet

24 / 0.8 / 0.0 ✔

Flights between 4k and 5k feet

22 / 0.7 / 0.0 ✔

Flights between 3k and 4k feet

24 / 0.8 / 0.0 ✔

Flights below 3k feet

2 / 0.1 / 0.0 ✔

4 or more flights per hour

16 / 0.5 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

84 / 2.7 / 0.2 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

30 / 1.0

1 AM

25 / 0.8

2 AM

23 / 0.7

3 AM

12 / 0.4

4 AM

13 / 0.4

5 AM

31 / 1.0

6 AM

38 / 1.2

7 AM

66 / 2.1

8 AM to 9 PM

906 / 29.2 / 2.1

10 PM

51 / 1.6

11 PM

49 / 1.6

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

14 ✔

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

48 ❌ (42)

Minimum avg. distance in miles

0.45

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

7.0 / 3.0 / 0.4 ✔

Flight holding stack identified?

No

Altitude for all flights

25,483 ✔

Altitude of departures between 1.5k and 15k feet

6,935 ❌ (7,646)

Altitude of flights below 20k feet

11,941 ✔

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

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

5.17

Wednesday @ 11:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

6.75

Friday @ 15:00 - 2 time(s) in 4 weeks. Approx:4 flight events.

5.75

Monday @ 11:00 - 2 time(s) in 4 weeks. Approx:4 flight events.

5.50

Friday @ 18:00 - 2 time(s) in 4 weeks. Approx:4 flight events.

5.25

Thursday @ 20:00 - 2 time(s) in 4 weeks. Approx:4 flight events.

5.00

Saturday @ 11:00 - 2 time(s) in 4 weeks. Approx:4 flight events.

3.50

Thursday @ 21:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.25

Wednesday @ 13:00 - 2 time(s) in 4 weeks. Approx:3 flight events.