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

04/02/2025 13:51:06

UK Postcode

STEYNING , WEST SUSSEX , BN44 3PL

Baseline geo-coordinates

50.8819 , -0.33353

Survey type

31 days prior to: 01-Sep-2024 @00:06:53

Assessment band

INTERMITTENT

Assessment actual value

5.89

Assessment description

Will encounter some day-time noise disturbances that are caused by the volumes of planes overflying Also expect a possible visual impact too.

Band range

Lower: 4.0 --> Upper: 7.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

2,224 / 71.7 / 4.2 ✔

Flights above 26k feet.

617 / 19.9 / 1.2 ✔

Flights between 16k and 26k feet

500 / 16.1 / 0.9 ❌ (355)

Flights between 13k and 15k feet

279 / 9.0 / 0.5 ❌ (179)

Flights between 7k and 12k feet

723 / 23.3 / 1.4 ❌ (544)

Flights between 6k and 7k feet

6 / 0.2 / 0.0 ✔

Flights between 5k and 6k feet

0 ✔

Flights between 4k and 5k feet

1 / 0.0 / 0.0 ✔

Flights between 3k and 4k feet

9 / 0.3 / 0.0 ✔

Flights below 3k feet

89 / 2.9 / 0.2 ✔

4 or more flights per hour

164 / 5.3 ✔

9 or more flights per hour

1 / 0.0 ✔

Departures between 1.5k and 15k feet

380 / 12.3 / 0.7 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

30 / 1.0

Between 1am and 2am

9 / 0.3

Between 2am and 3am

6 / 0.2

Between 3am and 4am

5 / 0.2

Between 4am and 5am

7 / 0.2

Between 5am and 6am

33 / 1.1

Between 6am and 7am

158 / 5.1

Between 7am and 8am

160 / 5.2

Between 8am and 9pm

1,641 / 52.9 / 3.8

Between 10pm and 11pm

88 / 2.8

Between 11pm and Midnight

58 / 1.9

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

20 ✔

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

47 ❌ (43)

Minimum avg. distance in miles

0.48

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

36.0 / 17.0 / 1.9 ✔

Flight holding stack identified?

No

Altitude for all flights

19,160 ✔

Altitude of departures between 1.5k and 15k feet

12,685 ✔

Altitude of flights below 20k feet

12,703 ✔

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

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

5.10

Wednesdays between 9:00 and 10:00- 4 time(s) in 4 weeks. Approx:4 flight events.

6.63

Fridays between 8:00 and 9:00- 4 time(s) in 4 weeks. Approx:5 flight events.

6.13

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

6.00

Fridays between 6:00 and 7:00- 4 time(s) in 4 weeks. Approx:5 flight events.

5.63

Wednesdays between 15:00 and 16:00 - 4 time(s) in 4 weeks. Approx:4 flight events.

5.50

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

5.38

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

5.25

Fridays between 9:00 and 10:00- 4 time(s) in 4 weeks. Approx:4 flight events.