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 07:57:00

UK Postcode

WINCHESTER-SPARSHOLT , HAMPSHIRE , SO21 2QH

Baseline geo-coordinates

51.0776 , -1.3783

Survey type

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

Assessment band

MINIMAL

Assessment actual value

3.49

Assessment description

Might encounter some day-time irregular noise disturbances that are caused by the volumes of planes overflying.

Band range

Lower: 0.5 --> Upper: 4.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

933 / 30.1 / 1.8 ✔

Flights above 26k feet.

575 / 18.5 / 1.1 ✔

Flights between 16k and 26k feet

144 / 4.6 / 0.3 ✔

Flights between 13k and 15k feet

15 / 0.5 / 0.0 ✔

Flights between 7k and 12k feet

117 / 3.8 / 0.2 ✔

Flights between 6k and 7k feet

35 / 1.1 / 0.1 ✔

Flights between 5k and 6k feet

11 / 0.4 / 0.0 ✔

Flights between 4k and 5k feet

10 / 0.3 / 0.0 ✔

Flights between 3k and 4k feet

16 / 0.5 / 0.0 ✔

Flights below 3k feet

10 / 0.3 / 0.0 ✔

4 or more flights per hour

5 / 0.2 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

101 / 3.3 / 0.2 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

9 / 0.3

1 AM

9 / 0.3

2 AM

3 / 0.1

3 AM

10 / 0.3

4 AM

12 / 0.4

5 AM

20 / 0.6

6 AM

43 / 1.4

7 AM

76 / 2.5

8 AM to 9 PM

713 / 23.0 / 1.6

10 PM

9 / 0.3

11 PM

7 / 0.2

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

15 ✔

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

34 ✔

Minimum avg. distance in miles

0.43

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

3.0 / 1.0 / 0.2 ✔

Flight holding stack identified?

No

Altitude for all flights

25,766 ✔

Altitude of departures between 1.5k and 15k feet

8,142 ✔

Altitude of flights below 20k feet

10,202 ✔

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

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

5.67

Monday @ 12:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

3.00

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

3.25

Monday @ 15:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.00

Wednesday @ 19:00 - 2 time(s) in 4 weeks. Approx:2 flight events.

2.50

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

6.50

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

4.50

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