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

08/08/2022 06:31:06

UK Postcode

WINCHESTER-WEST , HAMPSHIRE , SO22 5FW

Baseline geo-coordinates

51.076 , -1.34348

Survey type

31 Day. Based on the 31 days prior to the survey date shown above.

Assessment band

OCCASIONAL

Assessment actual value

4.39

Assessment description

Sound equates to a "C" road or an active country lane i.e. irregular traffic volumes. Location is on a flight route as opposed to a flight corridor. Some of the flights will be below 7000 feet and could occur at evenings and weekends.

Band range

Lower: 4.0 --> Upper: 7.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

1,543 / 49.8 / 2.9 ❌ (1,509)

Flights above 26k feet.

1,076 / 34.7 / 2.0 ❌ (338)

Flights between 16k and 26k feet

268 / 8.6 / 0.5 ❌ (168)

Flights between 13k and 15k feet

31 / 1.0 / 0.1 ✔

Flights between 7k and 12k feet

88 / 2.8 / 0.2 ✔

Flights between 6k and 7k feet

35 / 1.1 / 0.1 ✔

Flights between 5k and 6k feet

10 / 0.3 / 0.0 ✔

Flights between 4k and 5k feet

5 / 0.2 / 0.0 ✔

Flights between 3k and 4k feet

11 / 0.4 / 0.0 ✔

Flights below 3k feet

19 / 0.6 / 0.0 ✔

4 or more flights per hour

9 / 0.3 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

58 / 1.9 / 0.1 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

22 / 0.7

1 AM

16 / 0.5

2 AM

5 / 0.2

3 AM

7 / 0.2

4 AM

4 / 0.1

5 AM

25 / 0.8

6 AM

62 / 2.0

7 AM

103 / 3.3

8 AM to 9 PM

1,194 / 38.5 / 2.8

10 PM

36 / 1.2

11 PM

31 / 1.0

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

49 ❌ (41)

Minimum avg. distance in miles

0.32

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

4.0 / 2.0 / 0.2 ✔

Flight holding stack identified?

No

Altitude for all flights

28,796 ✔

Altitude of departures between 1.5k and 15k feet

9,338 ✔

Altitude of flights below 20k feet

12,221 ✔

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

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

3.00

Sunday @ 12:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

5.25

Monday @ 17:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

4.50

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

4.25

Sunday @ 16:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.00

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

2.50

Thursday @ 16:00 - 2 time(s) in 4 weeks. Approx:2 flight events.

7.00

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