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

06/02/2025 08:07:07

UK Postcode

RUDGWICK , WEST SUSSEX , RH12 3AA

Baseline geo-coordinates

51.1086 , -0.442857

Survey type

31 days prior to: 01-Sep-2024 @00:59:57

Assessment band

EXTREMELY HIGH

Assessment actual value

30.85

Assessment description

Highly 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: 30.0 --> Upper: 1000.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

8,896 / 287.0 / 16.9 ❌ (3,220)

Flights above 26k feet.

658 / 21.2 / 1.2 ✔

Flights between 16k and 26k feet

247 / 8.0 / 0.5 ✔

Flights between 13k and 15k feet

353 / 11.4 / 0.7 ❌ (179)

Flights between 7k and 12k feet

1,479 / 47.7 / 2.8 ❌ (547)

Flights between 6k and 7k feet

1,261 / 40.7 / 2.4 ❌ (155)

Flights between 5k and 6k feet

1,394 / 45.0 / 2.6 ❌ (227)

Flights between 4k and 5k feet

957 / 30.9 / 1.8 ❌ (274)

Flights between 3k and 4k feet

1,327 / 42.8 / 2.5 ❌ (191)

Flights below 3k feet

1,220 / 39.4 / 2.3 ❌ (584)

4 or more flights per hour

587 / 18.9 ❌ (206)

9 or more flights per hour

487 / 15.7 ❌ (78)

Departures between 1.5k and 15k feet

5,066 / 163.4 / 9.6 ❌ (399)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

122 / 3.9

Between 1am and 2am

88 / 2.8

Between 2am and 3am

58 / 1.9

Between 3am and 4am

45 / 1.5

Between 4am and 5am

18 / 0.6

Between 5am and 6am

139 / 4.5

Between 6am and 7am

365 / 11.8

Between 7am and 8am

613 / 19.8

Between 8am and 9pm

6,972 / 224.9 / 16.1

Between 10pm and 11pm

246 / 7.9

Between 11pm and Midnight

191 / 6.2

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

32 ❌ (30)

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

48 ❌ (43)

Minimum avg. distance in miles

0.32

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

261.0 / 126.0 / 13.7 ❌ (69)

Flight holding stack identified?

Yes ❌

Altitude for all flights

8,225 ❌ (17,466)

Altitude of departures between 1.5k and 15k feet

6,538 ❌ (8,466)

Altitude of flights below 20k feet

5,918 ❌ (8,790)

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

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

32.70

Wednesdays between 7:00 and 8:00- 4 time(s) in 4 weeks. Approx:18 flight events.

32.50

Wednesdays between 11:00 and 12:00 - 4 time(s) in 4 weeks. Approx:18 flight events.

32.00

Thursdays between 11:00 and 12:00 - 4 time(s) in 4 weeks. Approx:17 flight events.

31.90

Wednesdays between 12:00 and 13:00 - 4 time(s) in 4 weeks. Approx:18 flight events.

31.80

Thursdays between 17:00 and 18:00 - 4 time(s) in 4 weeks. Approx:18 flight events.

31.40

Fridays between 12:00 and 13:00 - 4 time(s) in 4 weeks. Approx:17 flight events.

30.20

Thursdays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:16 flight events.