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

18/08/2024 19:30:25

UK Postcode

ASHINGTON , WEST SUSSEX , RH20 3DD

Baseline geo-coordinates

50.93 , -0.390753

Survey type

31 days prior to: 17-Aug-2024 @23:50:23

Assessment band

INTERMITTENT

Assessment actual value

5.57

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

1,702 / 54.9 / 3.2 ✔

Flights above 26k feet.

620 / 20.0 / 1.2 ✔

Flights between 16k and 26k feet

420 / 13.5 / 0.8 ❌ (355)

Flights between 13k and 15k feet

202 / 6.5 / 0.4 ❌ (179)

Flights between 7k and 12k feet

381 / 12.3 / 0.7 ✔

Flights between 6k and 7k feet

28 / 0.9 / 0.1 ✔

Flights between 5k and 6k feet

4 / 0.1 / 0.0 ✔

Flights between 4k and 5k feet

0 ✔

Flights between 3k and 4k feet

4 / 0.1 / 0.0 ✔

Flights below 3k feet

43 / 1.4 / 0.1 ✔

4 or more flights per hour

80 / 2.6 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

391 / 12.6 / 0.7 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

12 / 0.4

Between 1am and 2am

12 / 0.4

Between 2am and 3am

7 / 0.2

Between 3am and 4am

7 / 0.2

Between 4am and 5am

8 / 0.3

Between 5am and 6am

16 / 0.5

Between 6am and 7am

125 / 4.0

Between 7am and 8am

129 / 4.2

Between 8am and 9pm

1,268 / 40.9 / 2.9

Between 10pm and 11pm

59 / 1.9

Between 11pm and Midnight

36 / 1.2

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

15 ✔

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

45 ❌ (43)

Minimum avg. distance in miles

0.43

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

19.0 / 9.0 / 1.0 ✔

Flight holding stack identified?

No

Altitude for all flights

21,367 ✔

Altitude of departures between 1.5k and 15k feet

12,192 ✔

Altitude of flights below 20k feet

13,410 ✔

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

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

7.50

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

5.25

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

4.75

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

7.00

Tuesdays between 11:00 and 12:00 - 3 time(s) in 4 weeks. Approx:5 flight events.

6.00

Thursdays between 21:00 and 22:00 - 3 time(s) in 4 weeks. Approx:4 flight events.

5.83

Fridays between 8:00 and 9:00- 3 time(s) in 4 weeks. Approx:4 flight events.

5.33

Saturdays between 7:00 and 8:00- 3 time(s) in 4 weeks. Approx:4 flight events.

5.00

Mondays between 17:00 and 18:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

4.83

Sundays between 16:00 and 17:00 - 3 time(s) in 4 weeks. Approx:3 flight events.