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

07/02/2025 13:22:58

UK Postcode

ALFRISTON , EAST SUSSEX , BN26 5TD

Baseline geo-coordinates

50.8064 , 0.156348

Survey type

31 days prior to: 31-Aug-2024 @19:58:57

Assessment band

MINIMAL

Assessment actual value

3.98

Assessment description

Might encounter some day-time irregular noise disturbances that are caused by the volumes of planes overflying.

Band range

Lower: 0.5 --> Upper: 4.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

333 / 10.7 / 0.6 ✔

Flights above 26k feet.

83 / 2.7 / 0.2 ✔

Flights between 16k and 26k feet

91 / 2.9 / 0.2 ✔

Flights between 13k and 15k feet

12 / 0.4 / 0.0 ✔

Flights between 7k and 12k feet

39 / 1.3 / 0.1 ✔

Flights between 6k and 7k feet

0 ✔

Flights between 5k and 6k feet

1 / 0.0 / 0.0 ✔

Flights between 4k and 5k feet

11 / 0.4 / 0.0 ✔

Flights between 3k and 4k feet

16 / 0.5 / 0.0 ✔

Flights below 3k feet

80 / 2.6 / 0.2 ✔

4 or more flights per hour

3 / 0.1 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

13 / 0.4 / 0.0 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

12 / 0.4

Between 1am and 2am

15 / 0.5

Between 2am and 3am

11 / 0.4

Between 3am and 4am

15 / 0.5

Between 4am and 5am

3 / 0.1

Between 5am and 6am

1 / 0.0

Between 6am and 7am

6 / 0.2

Between 7am and 8am

11 / 0.4

Between 8am and 9pm

242 / 7.8 / 0.6

Between 10pm and 11pm

6 / 0.2

Between 11pm and Midnight

5 / 0.2

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

45 ❌ (29)

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

58 ❌ (44)

Minimum avg. distance in miles

0.46

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

2.0 / 1.0 / 0.1 ✔

Flight holding stack identified?

No

Altitude for all flights

17,298 ❌ (17,495)

Altitude of departures between 1.5k and 15k feet

7,301 ❌ (8,558)

Altitude of flights below 20k feet

6,518 ❌ (8,850)

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

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

3.75

Sundays between 11:00 and 12:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

8.00

Saturdays between 1:00 and 2:00- 1 time(s) in 4 weeks. Approx:6 flight events.

6.00

Mondays between 3:00 and 4:00- 1 time(s) in 4 weeks. Approx:4 flight events.

5.50

Mondays between 13:00 and 14:00 - 1 time(s) in 4 weeks. Approx:4 flight events.

3.50

Mondays between 10:00 and 11:00 - 1 time(s) in 4 weeks. Approx:2 flight events.

3.00

Saturdays between 18:00 and 19:00 - 1 time(s) in 4 weeks. Approx:2 flight events.