Assessment ScoreCard – 31 Day

Assessment Scorecard headlines

All Assessments are based on an ambient background noise of between 30 and 40 dBs i.e. a quiet residential area. Typically the noise from an overflying aircraft is between 50-65 dBs. If your property is located near to a busy road i.e. 70-75 dBs, the noise impact from aircraft will be significantly reduced, whilst the road remains busy.

Note: Overflying aircraft noise typically has a duration of 30-50 seconds, the higher the plane the longer the duration. Whereas the average car, bus or HGV the duration is only a few seconds.

Date of survey

11/09/2025 08:34:40

UK Postcode Area

BROCKENHURST-EAST-3M-0825, HAMPSHIRE, SO42 7XG

Baseline geo-coordinates

50.7831 , -1.41612

Survey type

31 days prior to: 31-Aug-2025 @23:40:00

Assessment band

REGULAR

Assessment actual value

9.70

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

5,084 / 164.0 / 9.6 ❌ (3,194)

Flights above 26k feet.

1,406 / 45.4 / 2.7 ❌ (763)

Flights between 16k and 26k feet

2,113 / 68.2 / 4.0 ❌ (351)

Flights between 13k and 15k feet

141 / 4.5 / 0.3 ✔

Flights between 7k and 12k feet

363 / 11.7 / 0.7 ✔

Flights between 6k and 7k feet

110 / 3.5 / 0.2 ✔

Flights between 5k and 6k feet

128 / 4.1 / 0.2 ✔

Flights between 4k and 5k feet

99 / 3.2 / 0.2 ✔

Flights between 3k and 4k feet

91 / 2.9 / 0.2 ✔

Flights below 3k feet

633 / 20.4 / 1.2 ❌ (549)

4 or more flights per hour

440 / 14.2 ❌ (208)

9 or more flights per hour

140 / 4.5 ❌ (78)

Departures between 1.5k and 15k feet

378 / 12.2 / 0.7 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

30 / 1.0

Between 1am and 2am

32 / 1.0

Between 2am and 3am

8 / 0.3

Between 3am and 4am

2 / 0.1

Between 4am and 5am

13 / 0.4

Between 5am and 6am

63 / 2.0

Between 6am and 7am

275 / 8.9

Between 7am and 8am

475 / 15.3

Between 8am and 9pm

4,012 / 129.4 / 9.2

Between 10pm and 11pm

45 / 1.5

Between 11pm and Midnight

40 / 1.3

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

56 ❌ (30)

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

43 ✔

Minimum avg. distance in miles

1.65

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

71.0 / 30.0 / 3.7 ❌ (67)

Flight holding stack identified?

No

Altitude for all flights

20,074 ✔

Altitude of departures between 1.5k and 15k feet

7,634 ❌ (8,559)

Altitude of flights below 20k feet

10,148 ✔

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

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

14.90

Thursdays between 14:00 and 15:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

14.10

Saturdays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

14.00

Saturdays between 7:00 and 8:00- 4 time(s) in 4 weeks. Approx:9 flight events.

13.50

Fridays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

13.40

Fridays between 16:00 and 17:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

12.80

Fridays between 15:00 and 16:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

12.60

Saturdays between 11:00 and 12:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

12.20

Fridays between 11:00 and 12:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

11.90

Fridays between 17:00 and 18:00 - 4 time(s) in 4 weeks. Approx:7 flight events.