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

14/09/2022 12:44:25

UK Postcode

FALLOW-CORNER , LONDON , N2 9DS

Baseline geo-coordinates

51.5936 , -0.161145

Survey type

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

Assessment band

FREQUENT

Assessment actual value

15.21

Assessment description

Sound equates to an "A" road or a busy "B" road i.e. regular traffic that will be noticeable at peak times which includes evenings and weekends. Location is on a primary flight corridor or flight route or in a flight holding stack area. At times there will be multiple flight occurrences within the same hour, typically between 4-10. Some of the flights will be below 7000 feet.

Band range

Lower: 12.0 --> Upper: 16.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

4,095 / 132.1 / 7.8 ❌ (3,251)

Flights above 26k feet.

728 / 23.5 / 1.4 ❌ (630)

Flights between 16k and 26k feet

300 / 9.7 / 0.6 ✔

Flights between 13k and 15k feet

205 / 6.6 / 0.4 ❌ (142)

Flights between 7k and 12k feet

715 / 23.1 / 1.4 ❌ (440)

Flights between 6k and 7k feet

1,117 / 36.0 / 2.1 ❌ (187)

Flights between 5k and 6k feet

897 / 28.9 / 1.7 ❌ (296)

Flights between 4k and 5k feet

114 / 3.7 / 0.2 ✔

Flights between 3k and 4k feet

9 / 0.3 / 0.0 ✔

Flights below 3k feet

10 / 0.3 / 0.0 ✔

4 or more flights per hour

356 / 11.5 ❌ (209)

9 or more flights per hour

154 / 5.0 ❌ (89)

Departures between 1.5k and 15k feet

299 / 9.6 / 0.6 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

23 / 0.7

1 AM

27 / 0.9

2 AM

20 / 0.6

3 AM

12 / 0.4

4 AM

6 / 0.2

5 AM

28 / 0.9

6 AM

203 / 6.5

7 AM

265 / 8.5

8 AM to 9 PM

3,355 / 108.2 / 7.7

10 PM

85 / 2.7

11 PM

60 / 1.9

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

18 ✔

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

41 ✔

Minimum avg. distance in miles

0.46

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

99.0 / 41.0 / 5.2 ❌ (77)

Flight holding stack identified?

No

Altitude for all flights

12,689 ❌ (15,914)

Altitude of departures between 1.5k and 15k feet

6,894 ❌ (7,646)

Altitude of flights below 20k feet

7,292 ❌ (7,967)

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

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

19.00

Monday @ 7:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

17.50

Monday @ 13:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

16.90

Tuesday @ 13:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

16.60

Monday @ 8:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

15.60

Monday @ 9:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

14.30

Monday @ 6:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

14.10

Monday @ 18:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

13.20

Tuesday @ 16:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

13.10

Tuesday @ 7:00 - 4 time(s) in 4 weeks. Approx:7 flight events.