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

14/10/2022 17:03:05

UK Postcode

LITTON , SOMERSET , BA3 4PT

Baseline geo-coordinates

51.2971 , -2.58137

Survey type

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

Assessment band

MINIMAL

Assessment actual value

3.61

Assessment description

Sound equates to a quiet country lane i.e. irregular and low volume traffic. However, occasionally some of the flights could be below 7000 feet and could occur at evenings and weekends.

Band range

Lower: 0.0 --> Upper: 4.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

260 / 8.4 / 0.5 ✔

Flights above 26k feet.

33 / 1.1 / 0.1 ✔

Flights between 16k and 26k feet

5 / 0.2 / 0.0 ✔

Flights between 13k and 15k feet

0 ✔

Flights between 7k and 12k feet

61 / 2.0 / 0.1 ✔

Flights between 6k and 7k feet

22 / 0.7 / 0.0 ✔

Flights between 5k and 6k feet

67 / 2.2 / 0.1 ✔

Flights between 4k and 5k feet

47 / 1.5 / 0.1 ✔

Flights between 3k and 4k feet

9 / 0.3 / 0.0 ✔

Flights below 3k feet

16 / 0.5 / 0.0 ✔

4 or more flights per hour

3 / 0.1 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

50 / 1.6 / 0.1 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

4 / 0.1

1 AM

1 / 0.0

2 AM

1 / 0.0

3 AM

4 / 0.1

4 AM

2 / 0.1

5 AM

1 / 0.0

6 AM

18 / 0.6

7 AM

7 / 0.2

8 AM to 9 PM

192 / 6.2 / 0.4

10 PM

9 / 0.3

11 PM

15 / 0.5

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

19 ✔

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

46 ❌ (42)

Minimum avg. distance in miles

0.58

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

3.0 / 1.0 / 0.2 ✔

Flight holding stack identified?

No

Altitude for all flights

10,151 ❌ (15,914)

Altitude of departures between 1.5k and 15k feet

8,691 ✔

Altitude of flights below 20k feet

6,032 ❌ (7,967)

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

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

4.00

Sunday @ 11:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

3.00

Thursday @ 8:00 - 2 time(s) in 4 weeks. Approx:2 flight events.

2.75

Friday @ 12:00 - 2 time(s) in 4 weeks. Approx:2 flight events.

9.50

Thursday @ 9:00 - 1 time(s) in 4 weeks. Approx:5 flight events.

7.50

Tuesday @ 6:00 - 1 time(s) in 4 weeks. Approx:5 flight events.

4.50

Monday @ 22:00 - 1 time(s) in 4 weeks. Approx:3 flight events.