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

06/02/2023 19:47:59

UK Postcode

BLADON , OXFORDSHIRE , OX20 1RU

Baseline geo-coordinates

51.8278 , -1.35181

Survey type

31 Day. Based on the 31 days prior to the survey date shown above.

Assessment band

OCCASIONAL

Assessment actual value

5.40

Assessment description

Sound equates to a "C" road or an active country lane i.e. irregular traffic volumes. Location is on a flight route as opposed to a flight corridor. Some of the flights will be below 7000 feet and could occur at evenings and weekends.

Band range

Lower: 4.0 --> Upper: 7.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

862 / 27.8 / 1.6 ✔

Flights above 26k feet.

228 / 7.4 / 0.4 ✔

Flights between 16k and 26k feet

173 / 5.6 / 0.3 ✔

Flights between 13k and 15k feet

46 / 1.5 / 0.1 ✔

Flights between 7k and 12k feet

17 / 0.5 / 0.0 ✔

Flights between 6k and 7k feet

2 / 0.1 / 0.0 ✔

Flights between 5k and 6k feet

14 / 0.5 / 0.0 ✔

Flights between 4k and 5k feet

30 / 1.0 / 0.1 ✔

Flights between 3k and 4k feet

48 / 1.5 / 0.1 ✔

Flights below 3k feet

304 / 9.8 / 0.6 ✔

4 or more flights per hour

27 / 0.9 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

229 / 7.4 / 0.4 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

1 / 0.0

1 AM

1 / 0.0

2 AM

4 / 0.1

3 AM

2 / 0.1

4 AM

8 / 0.3

5 AM

13 / 0.4

6 AM

50 / 1.6

7 AM

50 / 1.6

8 AM to 9 PM

663 / 21.4 / 1.5

10 PM

4 / 0.1

11 PM

2 / 0.1

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

34 ❌ (21)

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

20 ✔

Minimum avg. distance in miles

0.43

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

11.0 / 2.0 / 0.6 ✔

Flight holding stack identified?

No

Altitude for all flights

16,272 ✔

Altitude of departures between 1.5k and 15k feet

2,483 ❌ (7,594)

Altitude of flights below 20k feet

6,035 ❌ (7,901)

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

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

6.25

Thursday @ 10:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

5.63

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

4.50

Monday @ 12:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

4.00

Friday @ 16:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

3.75

Monday @ 15:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

7.83

Saturday @ 13:00 - 3 time(s) in 4 weeks. Approx:4 flight events.

7.33

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

6.50

Friday @ 14:00 - 3 time(s) in 4 weeks. Approx:4 flight events.