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 20:56:24

UK Postcode

BARFORD-0823-2M , 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

12.01

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

7,844 / 253.0 / 14.9 ❌ (3,399)

Flights above 26k feet.

4,178 / 134.8 / 7.9 ❌ (720)

Flights between 16k and 26k feet

383 / 12.4 / 0.7 ❌ (324)

Flights between 13k and 15k feet

505 / 16.3 / 1.0 ❌ (167)

Flights between 7k and 12k feet

1,889 / 60.9 / 3.6 ❌ (490)

Flights between 6k and 7k feet

17 / 0.5 / 0.0 ✔

Flights between 5k and 6k feet

23 / 0.7 / 0.0 ✔

Flights between 4k and 5k feet

355 / 11.5 / 0.7 ❌ (319)

Flights between 3k and 4k feet

361 / 11.6 / 0.7 ❌ (267)

Flights below 3k feet

133 / 4.3 / 0.3 ✔

4 or more flights per hour

436 / 14.1 ❌ (217)

9 or more flights per hour

139 / 4.5 ❌ (90)

Departures between 1.5k and 15k feet

725 / 23.4 / 1.4 ❌ (413)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

32 / 1.0

1 AM

14 / 0.5

2 AM

3 / 0.1

3 AM

7 / 0.2

4 AM

20 / 0.6

5 AM

116 / 3.7

6 AM

415 / 13.4

7 AM

572 / 18.5

8 AM to 9 PM

6,244 / 201.4 / 14.4

10 PM

186 / 6.0

11 PM

84 / 2.7

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

31 ❌ (23)

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

39 ✔

Minimum avg. distance in miles

0.82

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

106.0 / 43.0 / 5.6 ❌ (77)

Flight holding stack identified?

Yes ❌

Altitude for all flights

23,173 ✔

Altitude of departures between 1.5k and 15k feet

11,400 ✔

Altitude of flights below 20k feet

9,985 ✔

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

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

15.50

Thursday @ 10:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

13.90

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

13.80

Thursday @ 11:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

13.30

Thursday @ 12:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

13.20

Wednesday @ 12:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

13.00

Wednesday @ 11:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

12.60

Wednesday @ 15:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

12.40

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