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

28/06/2023 18:26:38

UK Postcode

BRAY-WICK , BERKSHIRE , SL6 2AF

Baseline geo-coordinates

51.5084 , -0.702069

Survey type

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

Assessment band

OCCASIONAL

Assessment actual value

4.37

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

1,633 / 52.7 / 3.1 ✔

Flights above 26k feet.

776 / 25.0 / 1.5 ❌ (630)

Flights between 16k and 26k feet

463 / 14.9 / 0.9 ❌ (292)

Flights between 13k and 15k feet

39 / 1.3 / 0.1 ✔

Flights between 7k and 12k feet

224 / 7.2 / 0.4 ✔

Flights between 6k and 7k feet

8 / 0.3 / 0.0 ✔

Flights between 5k and 6k feet

3 / 0.1 / 0.0 ✔

Flights between 4k and 5k feet

3 / 0.1 / 0.0 ✔

Flights between 3k and 4k feet

2 / 0.1 / 0.0 ✔

Flights below 3k feet

115 / 3.7 / 0.2 ✔

4 or more flights per hour

31 / 1.0 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

7 / 0.2 / 0.0 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

26 / 0.8

1 AM

18 / 0.6

2 AM

15 / 0.5

3 AM

8 / 0.3

4 AM

9 / 0.3

5 AM

17 / 0.5

6 AM

83 / 2.7

7 AM

114 / 3.7

8 AM to 9 PM

1,177 / 38.0 / 2.7

10 PM

29 / 0.9

11 PM

38 / 1.2

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

15 ✔

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

37 ✔

Minimum avg. distance in miles

0.44

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

7.0 / 2.0 / 0.4 ✔

Flight holding stack identified?

No

Altitude for all flights

25,178 ✔

Altitude of departures between 1.5k and 15k feet

5,195 ❌ (7,444)

Altitude of flights below 20k feet

11,344 ✔

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

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

3.75

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

4.33

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

3.33

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

2.67

Tuesday @ 19:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

5.25

Friday @ 17:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

5.00

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

4.75

Saturday @ 14:00 - 2 time(s) in 4 weeks. Approx:3 flight events.