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 15:48:39

UK Postcode

CUCKFIELD , WEST SUSSEX , RH17 5JX

Baseline geo-coordinates

51.0061 , -0.142392

Survey type

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

Assessment band

HIGH

Assessment actual value

18.51

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: 16.0 --> Upper: 20.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

4,373 / 141.1 / 8.3 ❌ (3,428)

Flights above 26k feet.

732 / 23.6 / 1.4 ❌ (724)

Flights between 16k and 26k feet

161 / 5.2 / 0.3 ✔

Flights between 13k and 15k feet

26 / 0.8 / 0.0 ✔

Flights between 7k and 12k feet

1,708 / 55.1 / 3.2 ❌ (500)

Flights between 6k and 7k feet

1,508 / 48.6 / 2.9 ❌ (169)

Flights between 5k and 6k feet

195 / 6.3 / 0.4 ✔

Flights between 4k and 5k feet

10 / 0.3 / 0.0 ✔

Flights between 3k and 4k feet

7 / 0.2 / 0.0 ✔

Flights below 3k feet

26 / 0.8 / 0.0 ✔

4 or more flights per hour

338 / 10.9 ❌ (218)

9 or more flights per hour

169 / 5.5 ❌ (91)

Departures between 1.5k and 15k feet

20 / 0.6 / 0.0 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

50 / 1.6

1 AM

30 / 1.0

2 AM

8 / 0.3

3 AM

4 / 0.1

4 AM

2 / 0.1

5 AM

16 / 0.5

6 AM

147 / 4.7

7 AM

226 / 7.3

8 AM to 9 PM

3,558 / 114.8 / 8.2

10 PM

176 / 5.7

11 PM

138 / 4.5

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

19 ✔

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

49 ❌ (43)

Minimum avg. distance in miles

0.44

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

110.0 / 54.0 / 5.8 ❌ (78)

Flight holding stack identified?

No

Altitude for all flights

12,242 ❌ (16,286)

Altitude of departures between 1.5k and 15k feet

10,737 ✔

Altitude of flights below 20k feet

7,360 ❌ (8,018)

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

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

19.80

Monday @ 19:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

19.00

Monday @ 15:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

17.50

Monday @ 17:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

13.50

Wednesday @ 13:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

11.50

Tuesday @ 12:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

11.30

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

11.10

Tuesday @ 16:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

10.70

Monday @ 11:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

10.60

Monday @ 10:00 - 4 time(s) in 4 weeks. Approx:6 flight events.