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

18/07/2024 12:58:48

UK Postcode

WINCHESTER-WEST , HAMPSHIRE , SO22 5FQ

Baseline geo-coordinates

51.076 , -1.34348

Survey type

31 days from the 1st date shown in the Evidence table below .

Assessment band

OCCASIONAL

Assessment actual value

4.54

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

1,781 / 57.5 / 3.4 ✔

Flights above 26k feet.

1,147 / 37.0 / 2.2 ❌ (634)

Flights between 16k and 26k feet

287 / 9.3 / 0.5 ✔

Flights between 13k and 15k feet

48 / 1.5 / 0.1 ✔

Flights between 7k and 12k feet

176 / 5.7 / 0.3 ✔

Flights between 6k and 7k feet

63 / 2.0 / 0.1 ✔

Flights between 5k and 6k feet

26 / 0.8 / 0.0 ✔

Flights between 4k and 5k feet

7 / 0.2 / 0.0 ✔

Flights between 3k and 4k feet

11 / 0.4 / 0.0 ✔

Flights below 3k feet

16 / 0.5 / 0.0 ✔

4 or more flights per hour

19 / 0.6 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

137 / 4.4 / 0.3 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

18 / 0.6

1 AM

20 / 0.6

2 AM

10 / 0.3

3 AM

6 / 0.2

4 AM

8 / 0.3

5 AM

23 / 0.7

6 AM

94 / 3.0

7 AM

95 / 3.1

8 AM to 9 PM

1,396 / 45.0 / 3.2

10 PM

43 / 1.4

11 PM

42 / 1.4

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

16 ✔

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

42 ✔

Minimum avg. distance in miles

0.38

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

8.0 / 3.0 / 0.4 ✔

Flight holding stack identified?

Yes ❌

Altitude for all flights

26,882 ✔

Altitude of departures between 1.5k and 15k feet

8,595 ✔

Altitude of flights below 20k feet

11,222 ✔

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

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

4.75

Thursday @ 15:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

3.13

Thursday @ 20:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

4.67

Sunday @ 9:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

3.50

Wednesday @ 9:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

3.33

Sunday @ 11:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

3.17

Monday @ 20:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

3.00

Thursday @ 11:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

2.67

Sunday @ 20:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

6.00

Monday @ 9:00 - 2 time(s) in 4 weeks. Approx:3 flight events.