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

20/06/2022 17:56:05

UK Postcode

CHIPPINGHURST , OXFORDSHIRE , OX44 9JW

Baseline geo-coordinates

51.706 , -1.13529

Survey type

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

Assessment band

OCCASIONAL

Assessment actual value

4.38

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

1,207 / 38.9 / 2.3 ✔

Flights above 26k feet.

763 / 24.6 / 1.4 ❌ (381)

Flights between 16k and 26k feet

227 / 7.3 / 0.4 ❌ (175)

Flights between 13k and 15k feet

58 / 1.9 / 0.1 ✔

Flights between 7k and 12k feet

29 / 0.9 / 0.1 ✔

Flights between 6k and 7k feet

4 / 0.1 / 0.0 ✔

Flights between 5k and 6k feet

4 / 0.1 / 0.0 ✔

Flights between 4k and 5k feet

15 / 0.5 / 0.0 ✔

Flights between 3k and 4k feet

24 / 0.8 / 0.0 ✔

Flights below 3k feet

83 / 2.7 / 0.2 ✔

4 or more flights per hour

7 / 0.2 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

39 / 1.3 / 0.1 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

10 / 0.3

1 AM

10 / 0.3

2 AM

9 / 0.3

3 AM

3 / 0.1

4 AM

15 / 0.5

5 AM

25 / 0.8

6 AM

64 / 2.1

7 AM

95 / 3.1

8 AM to 9 PM

917 / 29.6 / 2.1

10 PM

20 / 0.6

11 PM

14 / 0.5

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

16 ✔

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

41 ✔

Minimum avg. distance in miles

0.43

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

27,273 ✔

Altitude of departures between 1.5k and 15k feet

7,775 ✔

Altitude of flights below 20k feet

10,233 ✔

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

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

6.25

Friday @ 10:00 - 2 time(s) in 4 weeks. Approx:4 flight events.

4.75

Saturday @ 12:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.50

Tuesday @ 10:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.00

Saturday @ 11:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

2.50

Monday @ 11:00 - 2 time(s) in 4 weeks. Approx:2 flight events.

10.00

Tuesday @ 12:00 - 1 time(s) in 4 weeks. Approx:5 flight events.

6.50

Thursday @ 16:00 - 1 time(s) in 4 weeks. Approx:4 flight events.