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

25/01/2022 10:57:48

UK Postcode

CHAILEY , EAST SUSSEX , BN8 4DA

Baseline geo-coordinates

50.9563 , -0.024492

Survey type

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

Assessment band

MINIMAL

Assessment actual value

3.42

Assessment description

Sound equates to a quiet country lane i.e. irregular and low volume traffic. However, occasionally some of the flights could be below 7000 feet and could occur at evenings and weekends.

Band range

Lower: 0.0 --> Upper: 4.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

352 / 11.4 / 0.7 ✔

Flights above 26k feet.

83 / 2.7 / 0.2 ✔

Flights between 16k and 26k feet

21 / 0.7 / 0.0 ✔

Flights between 13k and 15k feet

5 / 0.2 / 0.0 ✔

Flights between 7k and 12k feet

144 / 4.6 / 0.3 ✔

Flights between 6k and 7k feet

67 / 2.2 / 0.1 ✔

Flights between 5k and 6k feet

8 / 0.3 / 0.0 ✔

Flights between 4k and 5k feet

1 / 0.0 / 0.0 ✔

Flights between 3k and 4k feet

0 ✔

Flights below 3k feet

23 / 0.7 / 0.0 ✔

4 or more flights per hour

2 / 0.1 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

22 / 0.7 / 0.0 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

11 / 0.4

1 AM

2 / 0.1

2 AM

1 / 0.0

3 AM

3 / 0.1

4 AM

5 AM

6 / 0.2

6 AM

17 / 0.5

7 AM

31 / 1.0

8 AM to 9 PM

233 / 7.5 / 0.5

10 PM

24 / 0.8

11 PM

18 / 0.6

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

59 ❌ (43)

Minimum avg. distance in miles

0.47

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

4.0 / 2.0 / 0.2 ✔

Flight holding stack identified?

No

Altitude for all flights

15,002 ❌ (16,202)

Altitude of departures between 1.5k and 15k feet

11,049 ✔

Altitude of flights below 20k feet

7,667 ❌ (8,007)

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

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

2.83

Monday @ 22:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

3.75

Sunday @ 23:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.50

Saturday @ 8:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.25

Monday @ 12:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.00

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

2.75

Saturday @ 6:00 - 2 time(s) in 4 weeks. Approx:2 flight events.

7.00

Sunday @ 13:00 - 1 time(s) in 4 weeks. Approx:4 flight events.