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

20/09/2024 22:20:41

UK Postcode

BARFORD-1023-2M , SURREY , GU10 2NY

Baseline geo-coordinates

51.1316 , -0.774914

Survey type

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

Assessment band

FREQUENT

Assessment actual value

12.63

Assessment description

Likely to encounter both night-time and day-time noise disturbances that are caused by high volumes of planes flying at at low altitude. Also expect a visual impact too.

Band range

Lower: 12.0 --> Upper: 16.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

6,515 / 210.2 / 12.4 ❌ (3,428)

Flights above 26k feet.

3,229 / 104.2 / 6.1 ❌ (724)

Flights between 16k and 26k feet

306 / 9.9 / 0.6 ✔

Flights between 13k and 15k feet

547 / 17.6 / 1.0 ❌ (161)

Flights between 7k and 12k feet

1,665 / 53.7 / 3.2 ❌ (500)

Flights between 6k and 7k feet

19 / 0.6 / 0.0 ✔

Flights between 5k and 6k feet

53 / 1.7 / 0.1 ✔

Flights between 4k and 5k feet

337 / 10.9 / 0.6 ❌ (320)

Flights between 3k and 4k feet

304 / 9.8 / 0.6 ❌ (271)

Flights below 3k feet

55 / 1.8 / 0.1 ✔

4 or more flights per hour

386 / 12.5 ❌ (218)

9 or more flights per hour

129 / 4.2 ❌ (91)

Departures between 1.5k and 15k feet

728 / 23.5 / 1.4 ❌ (420)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

18 / 0.6

1 AM

17 / 0.5

2 AM

9 / 0.3

3 AM

4 / 0.1

4 AM

16 / 0.5

5 AM

107 / 3.5

6 AM

338 / 10.9

7 AM

477 / 15.4

8 AM to 9 PM

5,176 / 167.0 / 11.9

10 PM

146 / 4.7

11 PM

46 / 1.5

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

30 ❌ (23)

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

43 ✔

Minimum avg. distance in miles

0.82

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

95.0 / 40.0 / 5.0 ❌ (78)

Flight holding stack identified?

Yes ❌

Altitude for all flights

22,608 ✔

Altitude of departures between 1.5k and 15k feet

11,345 ✔

Altitude of flights below 20k feet

10,212 ✔

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

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

14.30

Monday @ 9:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

14.20

Monday @ 10:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

13.60

Sunday @ 15:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

13.40

Monday @ 15:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

13.10

Sunday @ 11:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

12.20

Sunday @ 18:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

12.00

Tuesday @ 10:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

11.40

Tuesday @ 15:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

11.20

Sunday @ 12:00 - 4 time(s) in 4 weeks. Approx:7 flight events.