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

09/08/2022 16:26:51

UK Postcode

FARNBOROUGH-HILL-2019 , Hampshire , GU14 6RF

Baseline geo-coordinates

51.287 , -0.742706

Survey type

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

Assessment band

REGULAR

Assessment actual value

8.73

Assessment description

Sound equates to a "B" road or busy "C" road i.e. regular traffic that will be noticeable at peak times which includes evenings and weekends. Location is on a secondary flight corridor or flight route or in a flight holding stack area. At times there will be multiple flight occurrences within the same hour, typically 4. Some of the flights will be below 7000 feet.

Band range

Lower: 7.0 --> Upper: 12.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

3,460 / 111.6 / 6.6 ❌ (1,849)

Flights above 26k feet.

1,179 / 38.0 / 2.2 ❌ (381)

Flights between 16k and 26k feet

425 / 13.7 / 0.8 ❌ (175)

Flights between 13k and 15k feet

249 / 8.0 / 0.5 ❌ (80)

Flights between 7k and 12k feet

438 / 14.1 / 0.8 ❌ (228)

Flights between 6k and 7k feet

19 / 0.6 / 0.0 ✔

Flights between 5k and 6k feet

1 / 0.0 / 0.0 ✔

Flights between 4k and 5k feet

3 / 0.1 / 0.0 ✔

Flights between 3k and 4k feet

18 / 0.6 / 0.0 ✔

Flights below 3k feet

1,128 / 36.4 / 2.1 ❌ (337)

4 or more flights per hour

151 / 4.9 ❌ (127)

9 or more flights per hour

5 / 0.2 ✔

Departures between 1.5k and 15k feet

495 / 16.0 / 0.9 ❌ (239)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

16 / 0.5

1 AM

15 / 0.5

2 AM

13 / 0.4

3 AM

19 / 0.6

4 AM

11 / 0.4

5 AM

29 / 0.9

6 AM

100 / 3.2

7 AM

194 / 6.3

8 AM to 9 PM

2,083 / 67.2 / 4.8

10 PM

82 / 2.6

11 PM

41 / 1.3

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

26 ❌ (22)

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

35 ✔

Minimum avg. distance in miles

0.31

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

59.0 / 21.0 / 3.1 ❌ (41)

Flight holding stack identified?

Yes ❌

Altitude for all flights

21,456 ✔

Altitude of departures between 1.5k and 15k feet

6,472 ❌ (7,666)

Altitude of flights below 20k feet

9,456 ✔

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

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

9.20

Wednesday @ 16:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

9.00

Friday @ 8:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

8.50

Wednesday @ 14:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

7.60

Thursday @ 18:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

7.50

Friday @ 14:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

7.30

Friday @ 7:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

7.20

Thursday @ 16:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

6.60

Thursday @ 12:00 - 4 time(s) in 4 weeks. Approx:5 flight events.