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 19:23:30

UK Postcode

FARNBOROUGH-HILL-2019 , Hampshire , GU14 6RF

Baseline geo-coordinates

51.287 , -0.742706

Survey type

31 days prior to: 10-Aug-2019 @01:52:53

Assessment band

REGULAR

Assessment actual value

7.29

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 ❌ (3,156)

Flights above 26k feet.

1,179 / 38.0 / 2.2 ❌ (746)

Flights between 16k and 26k feet

425 / 13.7 / 0.8 ❌ (354)

Flights between 13k and 15k feet

249 / 8.0 / 0.5 ❌ (178)

Flights between 7k and 12k feet

438 / 14.1 / 0.8 ✔

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 ❌ (595)

4 or more flights per hour

151 / 4.9 ✔

9 or more flights per hour

5 / 0.2 ✔

Departures between 1.5k and 15k feet

495 / 16.0 / 0.9 ❌ (392)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

16 / 0.5

Between 1am and 2am

15 / 0.5

Between 2am and 3am

13 / 0.4

Between 3am and 4am

19 / 0.6

Between 4am and 5am

11 / 0.4

Between 5am and 6am

29 / 0.9

Between 6am and 7am

100 / 3.2

Between 7am and 8am

194 / 6.3

Between 8am and 9pm

2,083 / 67.2 / 4.8

Between 10pm and 11pm

82 / 2.6

Between 11pm and Midnight

41 / 1.3

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

26 ✔

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 ✔

Flight holding stack identified?

Yes ❌

Altitude for all flights

21,456 ✔

Altitude of departures between 1.5k and 15k feet

6,472 ❌ (8,484)

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

Wednesdays between 16:00 and 17:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

9.00

Fridays between 8:00 and 9:00- 4 time(s) in 4 weeks. Approx:6 flight events.

8.50

Wednesdays between 14:00 and 15:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

7.60

Thursdays between 18:00 and 19:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

7.50

Thursdays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

7.30

Fridays between 7:00 and 8:00- 4 time(s) in 4 weeks. Approx:5 flight events.

7.20

Thursdays between 16:00 and 17:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

6.60

Thursdays between 12:00 and 13:00 - 4 time(s) in 4 weeks. Approx:5 flight events.