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

30/04/2024 07:12:25

UK Postcode

CROWBOROUGH , EAST SUSSEX , TN6 1AS

Baseline geo-coordinates

51.0602 , 0.159817

Survey type

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

Assessment band

FREQUENT

Assessment actual value

13.41

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

3,061 / 98.7 / 5.8 ✔

Flights above 26k feet.

409 / 13.2 / 0.8 ✔

Flights between 16k and 26k feet

31 / 1.0 / 0.1 ✔

Flights between 13k and 15k feet

53 / 1.7 / 0.1 ✔

Flights between 7k and 12k feet

199 / 6.4 / 0.4 ✔

Flights between 6k and 7k feet

549 / 17.7 / 1.0 ❌ (166)

Flights between 5k and 6k feet

1,127 / 36.4 / 2.1 ❌ (263)

Flights between 4k and 5k feet

584 / 18.8 / 1.1 ❌ (319)

Flights between 3k and 4k feet

60 / 1.9 / 0.1 ✔

Flights below 3k feet

49 / 1.6 / 0.1 ✔

4 or more flights per hour

318 / 10.3 ❌ (217)

9 or more flights per hour

98 / 3.2 ❌ (90)

Departures between 1.5k and 15k feet

6 / 0.2 / 0.0 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

28 / 0.9

1 AM

21 / 0.7

2 AM

8 / 0.3

3 AM

7 / 0.2

4 AM

7 / 0.2

5 AM

20 / 0.6

6 AM

78 / 2.5

7 AM

137 / 4.4

8 AM to 9 PM

2,443 / 78.8 / 5.6

10 PM

190 / 6.1

11 PM

105 / 3.4

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

20 ✔

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

48 ❌ (43)

Minimum avg. distance in miles

0.47

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

82.0 / 39.0 / 4.3 ❌ (77)

Flight holding stack identified?

No

Altitude for all flights

9,922 ❌ (16,276)

Altitude of departures between 1.5k and 15k feet

13,012 ✔

Altitude of flights below 20k feet

5,902 ❌ (8,043)

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

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

11.90

Saturday @ 14:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

10.70

Monday @ 19:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

22.13

Thursday @ 15:00 - 4 time(s) in 4 weeks. Approx:12 flight events.

22.00

Thursday @ 14:00 - 4 time(s) in 4 weeks. Approx:12 flight events.

19.00

Thursday @ 16:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

17.38

Sunday @ 12:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

17.25

Thursday @ 22:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

16.13

Sunday @ 19:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

16.00

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