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

28/08/2024 09:42:02

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

INTERMITTENT

Assessment actual value

4.74

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

1,788 / 57.7 / 3.4 ✔

Flights above 26k feet.

1,186 / 38.3 / 2.3 ❌ (716)

Flights between 16k and 26k feet

248 / 8.0 / 0.5 ✔

Flights between 13k and 15k feet

43 / 1.4 / 0.1 ✔

Flights between 7k and 12k feet

165 / 5.3 / 0.3 ✔

Flights between 6k and 7k feet

73 / 2.4 / 0.1 ✔

Flights between 5k and 6k feet

30 / 1.0 / 0.1 ✔

Flights between 4k and 5k feet

13 / 0.4 / 0.0 ✔

Flights between 3k and 4k feet

6 / 0.2 / 0.0 ✔

Flights below 3k feet

24 / 0.8 / 0.0 ✔

4 or more flights per hour

14 / 0.5 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

139 / 4.5 / 0.3 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

24 / 0.8

1 AM

9 / 0.3

2 AM

8 / 0.3

3 AM

5 / 0.2

4 AM

19 / 0.6

5 AM

34 / 1.1

6 AM

94 / 3.0

7 AM

110 / 3.5

8 AM to 9 PM

1,382 / 44.6 / 3.2

10 PM

46 / 1.5

11 PM

24 / 0.8

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

51 ❌ (43)

Minimum avg. distance in miles

0.37

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

8.0 / 4.0 / 0.4 ✔

Flight holding stack identified?

No

Altitude for all flights

26,993 ✔

Altitude of departures between 1.5k and 15k feet

7,942 ✔

Altitude of flights below 20k feet

10,572 ✔

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

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

5.50

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

4.50

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

3.83

Saturday @ 16:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

3.67

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

3.50

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

3.17

Monday @ 19:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

2.83

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

6.00

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

5.25

Monday @ 12:00 - 2 time(s) in 4 weeks. Approx:4 flight events.