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

10/02/2025 19:46:09

UK Postcode

EASTLEIGH , HAMPSHIRE , SO50 9FJ

Baseline geo-coordinates

50.9696 , -1.35051

Survey type

31 days prior to: 01-Sep-2024 @00:59:53

Assessment band

INTERMITTENT

Assessment actual value

6.75

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

3,516 / 113.4 / 6.7 ❌ (3,212)

Flights above 26k feet.

1,237 / 39.9 / 2.3 ❌ (753)

Flights between 16k and 26k feet

1,004 / 32.4 / 1.9 ❌ (350)

Flights between 13k and 15k feet

248 / 8.0 / 0.5 ❌ (178)

Flights between 7k and 12k feet

147 / 4.7 / 0.3 ✔

Flights between 6k and 7k feet

19 / 0.6 / 0.0 ✔

Flights between 5k and 6k feet

29 / 0.9 / 0.1 ✔

Flights between 4k and 5k feet

9 / 0.3 / 0.0 ✔

Flights between 3k and 4k feet

20 / 0.6 / 0.0 ✔

Flights below 3k feet

803 / 25.9 / 1.5 ❌ (577)

4 or more flights per hour

191 / 6.2 ✔

9 or more flights per hour

10 / 0.3 ✔

Departures between 1.5k and 15k feet

265 / 8.5 / 0.5 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

19 / 0.6

Between 1am and 2am

11 / 0.4

Between 2am and 3am

4 / 0.1

Between 3am and 4am

4 / 0.1

Between 4am and 5am

11 / 0.4

Between 5am and 6am

22 / 0.7

Between 6am and 7am

155 / 5.0

Between 7am and 8am

235 / 7.6

Between 8am and 9pm

2,327 / 75.1 / 5.4

Between 10pm and 11pm

47 / 1.5

Between 11pm and Midnight

23 / 0.7

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

24 ✔

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

37 ✔

Minimum avg. distance in miles

0.47

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

52.0 / 20.0 / 2.7 ✔

Flight holding stack identified?

No

Altitude for all flights

22,914 ✔

Altitude of departures between 1.5k and 15k feet

7,685 ❌ (8,506)

Altitude of flights below 20k feet

13,442 ✔

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

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

11.60

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

11.00

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

10.20

Fridays between 12:00 and 13:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

9.10

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

8.90

Fridays between 19:00 and 20:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

8.60

Fridays between 15:00 and 16:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

8.00

Saturdays between 14:00 and 15:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

7.80

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

7.60

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