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

31/07/2022 17:51:38

UK Postcode

WINCHESTER-WEST-2019 , 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

MINIMAL

Assessment actual value

3.23

Assessment description

Sound equates to a quiet country lane i.e. irregular and low volume traffic. However, occasionally some of the flights could be below 7000 feet and could occur at evenings and weekends.

Band range

Lower: 0.0 --> Upper: 4.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

985 / 31.8 / 1.9 ✔

Flights above 26k feet.

655 / 21.1 / 1.2 ✔

Flights between 16k and 26k feet

205 / 6.6 / 0.4 ✔

Flights between 13k and 15k feet

21 / 0.7 / 0.0 ✔

Flights between 7k and 12k feet

51 / 1.6 / 0.1 ✔

Flights between 6k and 7k feet

33 / 1.1 / 0.1 ✔

Flights between 5k and 6k feet

9 / 0.3 / 0.0 ✔

Flights between 4k and 5k feet

4 / 0.1 / 0.0 ✔

Flights between 3k and 4k feet

4 / 0.1 / 0.0 ✔

Flights below 3k feet

3 / 0.1 / 0.0 ✔

4 or more flights per hour

4 / 0.1 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

32 / 1.0 / 0.1 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

11 / 0.4

1 AM

3 / 0.1

2 AM

3 / 0.1

3 AM

2 / 0.1

4 AM

7 / 0.2

5 AM

23 / 0.7

6 AM

62 / 2.0

7 AM

97 / 3.1

8 AM to 9 PM

746 / 24.1 / 1.7

10 PM

13 / 0.4

11 PM

11 / 0.4

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

14 ✔

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

37 ✔

Minimum avg. distance in miles

0.44

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

2.0 / 1.0 / 0.1 ✔

Flight holding stack identified?

No

Altitude for all flights

26,934 ✔

Altitude of departures between 1.5k and 15k feet

10,726 ✔

Altitude of flights below 20k feet

11,764 ✔

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

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

4.50

Saturday @ 14:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.00

Thursday @ 13:00 - 2 time(s) in 4 weeks. Approx:2 flight events.

2.50

Tuesday @ 18:00 - 2 time(s) in 4 weeks. Approx:2 flight events.

5.00

Thursday @ 15:00 - 1 time(s) in 4 weeks. Approx:2 flight events.

3.50

Monday @ 7:00 - 1 time(s) in 4 weeks. Approx:3 flight events.

3.00

Sunday @ 10:00 - 1 time(s) in 4 weeks. Approx:2 flight events.