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

10/09/2025 10:13:31

UK Postcode Area

BROCKENHURST-EAST-3M-0824, HAMPSHIRE, SO42 7XG

Baseline geo-coordinates

50.7831 , -1.41612

Survey type

31 days prior to: 31-Aug-2024 @23:37:01

Assessment band

REGULAR

Assessment actual value

8.75

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

4,708 / 151.9 / 8.9 ❌ (3,204)

Flights above 26k feet.

1,296 / 41.8 / 2.5 ❌ (760)

Flights between 16k and 26k feet

2,172 / 70.1 / 4.1 ❌ (354)

Flights between 13k and 15k feet

135 / 4.4 / 0.3 ✔

Flights between 7k and 12k feet

261 / 8.4 / 0.5 ✔

Flights between 6k and 7k feet

99 / 3.2 / 0.2 ✔

Flights between 5k and 6k feet

105 / 3.4 / 0.2 ✔

Flights between 4k and 5k feet

93 / 3.0 / 0.2 ✔

Flights between 3k and 4k feet

67 / 2.2 / 0.1 ✔

Flights below 3k feet

480 / 15.5 / 0.9 ✔

4 or more flights per hour

431 / 13.9 ❌ (209)

9 or more flights per hour

94 / 3.0 ❌ (78)

Departures between 1.5k and 15k feet

266 / 8.6 / 0.5 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

41 / 1.3

Between 1am and 2am

22 / 0.7

Between 2am and 3am

10 / 0.3

Between 3am and 4am

8 / 0.3

Between 4am and 5am

14 / 0.5

Between 5am and 6am

67 / 2.2

Between 6am and 7am

279 / 9.0

Between 7am and 8am

386 / 12.5

Between 8am and 9pm

3,678 / 118.6 / 8.5

Between 10pm and 11pm

60 / 1.9

Between 11pm and Midnight

59 / 1.9

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

57 ❌ (30)

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

40 ✔

Minimum avg. distance in miles

1.65

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

63.0 / 26.0 / 3.3 ✔

Flight holding stack identified?

No

Altitude for all flights

20,767 ✔

Altitude of departures between 1.5k and 15k feet

7,177 ❌ (8,519)

Altitude of flights below 20k feet

11,244 ✔

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

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

14.80

Fridays between 11:00 and 12:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

13.60

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

12.00

Fridays between 16:00 and 17:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

11.20

Saturdays between 13:00 and 14:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

11.00

Wednesdays between 11:00 and 12:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

10.20

Fridays between 9:00 and 10:00- 4 time(s) in 4 weeks. Approx:6 flight events.

10.00

Saturdays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

9.80

Thursdays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

9.70

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