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

17/10/2024 07:08:49

UK Postcode

WINCHESTER-SPARSHOLT-3M , HAMPSHIRE , SO21 2QH

Baseline geo-coordinates

51.0776 , -1.3783

Survey type

31 days prior to: 02-Sep-2024 @00:17:16

Assessment band

INTERMITTENT

Assessment actual value

5.66

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

3,887 / 125.4 / 7.4 ❌ (3,375)

Flights above 26k feet.

2,506 / 80.8 / 4.8 ❌ (714)

Flights between 16k and 26k feet

567 / 18.3 / 1.1 ❌ (338)

Flights between 13k and 15k feet

89 / 2.9 / 0.2 ✔

Flights between 7k and 12k feet

321 / 10.4 / 0.6 ✔

Flights between 6k and 7k feet

148 / 4.8 / 0.3 ✔

Flights between 5k and 6k feet

60 / 1.9 / 0.1 ✔

Flights between 4k and 5k feet

21 / 0.7 / 0.0 ✔

Flights between 3k and 4k feet

37 / 1.2 / 0.1 ✔

Flights below 3k feet

138 / 4.5 / 0.3 ✔

4 or more flights per hour

137 / 4.4 ✔

9 or more flights per hour

3 / 0.1 ✔

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

51 / 1.6

Between 1am and 2am

25 / 0.8

Between 2am and 3am

18 / 0.6

Between 3am and 4am

16 / 0.5

Between 4am and 5am

32 / 1.0

Between 5am and 6am

79 / 2.5

Between 6am and 7am

206 / 6.6

Between 7am and 8am

286 / 9.2

Between 8am and 9pm

2,954 / 95.3 / 6.8

Between 10pm and 11pm

79 / 2.5

Between 11pm and Midnight

38 / 1.2

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

44 ❌ (23)

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

44 ❌ (43)

Minimum avg. distance in miles

1.52

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

29.0 / 13.0 / 1.5 ✔

Flight holding stack identified?

Yes ❌

Altitude for all flights

26,550 ✔

Altitude of departures between 1.5k and 15k feet

7,941 ❌ (8,025)

Altitude of flights below 20k feet

10,114 ✔

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

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

8.00

Fridays between 16:00 and 17:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

5.40

Thursdays between 19:00 and 20:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

5.30

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

5.20

Saturdays between 13:00 and 14:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

5.10

Fridays between 19:00 and 20:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

3.90

Thursdays between 20:00 and 21:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

3.80

Fridays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

3.40

Saturdays between 15:00 and 16:00 - 4 time(s) in 4 weeks. Approx:2 flight events.