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

13/08/2024 21:56:09

UK Postcode

WINCHESTER-EAST , HAMPSHIRE , SO23 0JP

Baseline geo-coordinates

51.061 , -1.29789

Survey type

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

Assessment band

INTERMITTENT

Assessment actual value

6.03

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

2,094 / 67.5 / 4.0 ✔

Flights above 26k feet.

774 / 25.0 / 1.5 ❌ (656)

Flights between 16k and 26k feet

435 / 14.0 / 0.8 ❌ (307)

Flights between 13k and 15k feet

161 / 5.2 / 0.3 ❌ (152)

Flights between 7k and 12k feet

101 / 3.3 / 0.2 ✔

Flights between 6k and 7k feet

12 / 0.4 / 0.0 ✔

Flights between 5k and 6k feet

9 / 0.3 / 0.0 ✔

Flights between 4k and 5k feet

49 / 1.6 / 0.1 ✔

Flights between 3k and 4k feet

182 / 5.9 / 0.3 ✔

Flights below 3k feet

371 / 12.0 / 0.7 ✔

4 or more flights per hour

140 / 4.5 ✔

9 or more flights per hour

2 / 0.1 ✔

Departures between 1.5k and 15k feet

96 / 3.1 / 0.2 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

9 / 0.3

1 AM

11 / 0.4

2 AM

9 / 0.3

3 AM

1 / 0.0

4 AM

13 / 0.4

5 AM

17 / 0.5

6 AM

86 / 2.8

7 AM

207 / 6.7

8 AM to 9 PM

1,655 / 53.4 / 3.8

10 PM

55 / 1.8

11 PM

10 / 0.3

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

25 ❌ (23)

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

43 ✔

Minimum avg. distance in miles

0.31

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

32.0 / 14.0 / 1.7 ✔

Flight holding stack identified?

No

Altitude for all flights

18,648 ✔

Altitude of departures between 1.5k and 15k feet

11,427 ✔

Altitude of flights below 20k feet

8,581 ✔

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

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

8.40

Saturday @ 13:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

8.30

Monday @ 8:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

8.00

Saturday @ 8:00 - 4 time(s) in 4 weeks. Approx:4 flight events.

6.70

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

6.00

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

5.60

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

4.90

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

4.70

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