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

22/03/2024 10:26:10

UK Postcode

WINDLESHAM-8RU , SURREY , GU24 8RU

Baseline geo-coordinates

51.3541 , -0.593066

Survey type

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

Assessment band

REGULAR

Assessment actual value

10.59

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

3,737 / 120.5 / 7.1 ❌ (3,233)

Flights above 26k feet.

1,479 / 47.7 / 2.8 ❌ (618)

Flights between 16k and 26k feet

268 / 8.6 / 0.5 ✔

Flights between 13k and 15k feet

20 / 0.6 / 0.0 ✔

Flights between 7k and 12k feet

942 / 30.4 / 1.8 ❌ (417)

Flights between 6k and 7k feet

502 / 16.2 / 1.0 ❌ (189)

Flights between 5k and 6k feet

285 / 9.2 / 0.5 ✔

Flights between 4k and 5k feet

70 / 2.3 / 0.1 ✔

Flights between 3k and 4k feet

5 / 0.2 / 0.0 ✔

Flights below 3k feet

166 / 5.4 / 0.3 ✔

4 or more flights per hour

283 / 9.1 ❌ (209)

9 or more flights per hour

42 / 1.4 ✔

Departures between 1.5k and 15k feet

1,293 / 41.7 / 2.5 ❌ (399)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

21 / 0.7

1 AM

8 / 0.3

2 AM

3 / 0.1

3 AM

5 / 0.2

4 AM

15 / 0.5

5 AM

24 / 0.8

6 AM

142 / 4.6

7 AM

207 / 6.7

8 AM to 9 PM

2,916 / 94.1 / 6.7

10 PM

172 / 5.5

11 PM

98 / 3.2

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

18 ✔

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

49 ❌ (43)

Minimum avg. distance in miles

0.41

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

63.0 / 30.0 / 3.3 ✔

Flight holding stack identified?

No

Altitude for all flights

19,065 ✔

Altitude of departures between 1.5k and 15k feet

6,923 ❌ (7,703)

Altitude of flights below 20k feet

7,239 ❌ (7,846)

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

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

11.30

Thursday @ 19:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

9.90

Thursday @ 10:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

9.80

Thursday @ 16:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

9.50

Thursday @ 22:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

9.10

Wednesday @ 21:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

8.60

Friday @ 16:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

8.40

Thursday @ 21:00 - 4 time(s) in 4 weeks. Approx:5 flight events.