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

17/10/2024 16:21:53

UK Postcode

WIVELSFIELD-GREEN , EAST SUSSEX , RH17 7PZ

Baseline geo-coordinates

50.9666 , -0.090048

Survey type

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

Assessment band

FREQUENT

Assessment actual value

12.17

Assessment description

Likely to encounter both night-time and day-time noise disturbances that are caused by high volumes of planes flying at at low altitude. Also expect a visual impact too.

Band range

Lower: 12.0 --> Upper: 16.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

4,261 / 137.5 / 8.1 ❌ (3,399)

Flights above 26k feet.

739 / 23.8 / 1.4 ❌ (719)

Flights between 16k and 26k feet

155 / 5.0 / 0.3 ✔

Flights between 13k and 15k feet

22 / 0.7 / 0.0 ✔

Flights between 7k and 12k feet

3,071 / 99.1 / 5.8 ❌ (490)

Flights between 6k and 7k feet

198 / 6.4 / 0.4 ❌ (166)

Flights between 5k and 6k feet

17 / 0.5 / 0.0 ✔

Flights between 4k and 5k feet

0 ✔

Flights between 3k and 4k feet

0 ✔

Flights below 3k feet

59 / 1.9 / 0.1 ✔

4 or more flights per hour

391 / 12.6 ❌ (217)

9 or more flights per hour

157 / 5.1 ❌ (90)

Departures between 1.5k and 15k feet

39 / 1.3 / 0.1 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

54 / 1.7

1 AM

24 / 0.8

2 AM

14 / 0.5

3 AM

3 / 0.1

4 AM

3 / 0.1

5 AM

20 / 0.6

6 AM

108 / 3.5

7 AM

261 / 8.4

8 AM to 9 PM

3,465 / 111.8 / 8.0

10 PM

152 / 4.9

11 PM

146 / 4.7

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

30 ❌ (23)

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

41 ✔

Minimum avg. distance in miles

0.33

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

106.0 / 43.0 / 5.6 ❌ (77)

Flight holding stack identified?

Yes ❌

Altitude for all flights

13,669 ❌ (16,269)

Altitude of departures between 1.5k and 15k feet

9,476 ✔

Altitude of flights below 20k feet

9,000 ✔

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

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

16.70

Tuesday @ 8:00 - 4 time(s) in 4 weeks. Approx:12 flight events.

15.30

Monday @ 16:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

14.70

Monday @ 14:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

14.60

Wednesday @ 8:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

14.10

Wednesday @ 15:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

13.90

Monday @ 15:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

13.30

Monday @ 12:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

13.10

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