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

30/05/2024 18:34:15

UK Postcode

HEATHFIELD , EAST SUSSEX , TN21 8JD

Baseline geo-coordinates

50.9674 , 0.22458

Survey type

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

Assessment band

REGULAR

Assessment actual value

9.91

Assessment description

Will encounter some 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: 7.0 --> Upper: 12.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

3,023 / 97.5 / 5.7 ✔

Flights above 26k feet.

159 / 5.1 / 0.3 ✔

Flights between 16k and 26k feet

319 / 10.3 / 0.6 ❌ (309)

Flights between 13k and 15k feet

87 / 2.8 / 0.2 ✔

Flights between 7k and 12k feet

2,313 / 74.6 / 4.4 ❌ (431)

Flights between 6k and 7k feet

87 / 2.8 / 0.2 ✔

Flights between 5k and 6k feet

6 / 0.2 / 0.0 ✔

Flights between 4k and 5k feet

3 / 0.1 / 0.0 ✔

Flights between 3k and 4k feet

2 / 0.1 / 0.0 ✔

Flights below 3k feet

47 / 1.5 / 0.1 ✔

4 or more flights per hour

329 / 10.6 ❌ (203)

9 or more flights per hour

94 / 3.0 ❌ (83)

Departures between 1.5k and 15k feet

10 / 0.3 / 0.0 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

33 / 1.1

1 AM

26 / 0.8

2 AM

8 / 0.3

3 AM

10 / 0.3

4 AM

4 / 0.1

5 AM

17 / 0.5

6 AM

59 / 1.9

7 AM

121 / 3.9

8 AM to 9 PM

2,443 / 78.8 / 5.6

10 PM

166 / 5.4

11 PM

134 / 4.3

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

24 ❌ (22)

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

49 ❌ (43)

Minimum avg. distance in miles

0.40

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

79.0 / 39.0 / 4.2 ❌ (72)

Flight holding stack identified?

Yes ❌

Altitude for all flights

11,775 ❌ (16,202)

Altitude of departures between 1.5k and 15k feet

6,219 ❌ (7,809)

Altitude of flights below 20k feet

9,449 ✔

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

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

14.70

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

12.60

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

12.00

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

10.30

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

10.10

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

9.20

Wednesday @ 14:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

8.60

Tuesday @ 14:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

8.50

Tuesday @ 17:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

8.00

Wednesday @ 18:00 - 4 time(s) in 4 weeks. Approx:6 flight events.