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

26/02/2024 08:57:27

UK Postcode

CENTRAL-BRACKNELL , BERKSHIRE , RG12 9RB

Baseline geo-coordinates

51.4077 , -0.747451

Survey type

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

Assessment band

OCCASIONAL

Assessment actual value

5.78

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

2,402 / 77.5 / 4.6 ✔

Flights above 26k feet.

1,457 / 47.0 / 2.8 ❌ (618)

Flights between 16k and 26k feet

460 / 14.8 / 0.9 ❌ (294)

Flights between 13k and 15k feet

45 / 1.5 / 0.1 ✔

Flights between 7k and 12k feet

297 / 9.6 / 0.6 ✔

Flights between 6k and 7k feet

44 / 1.4 / 0.1 ✔

Flights between 5k and 6k feet

26 / 0.8 / 0.0 ✔

Flights between 4k and 5k feet

18 / 0.6 / 0.0 ✔

Flights between 3k and 4k feet

4 / 0.1 / 0.0 ✔

Flights below 3k feet

51 / 1.6 / 0.1 ✔

4 or more flights per hour

64 / 2.1 ✔

9 or more flights per hour

1 / 0.0 ✔

Departures between 1.5k and 15k feet

314 / 10.1 / 0.6 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

22 / 0.7

1 AM

9 / 0.3

2 AM

6 / 0.2

3 AM

5 / 0.2

4 AM

19 / 0.6

5 AM

14 / 0.5

6 AM

118 / 3.8

7 AM

156 / 5.0

8 AM to 9 PM

1,900 / 61.3 / 4.4

10 PM

79 / 2.5

11 PM

33 / 1.1

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

14 ✔

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

35 ✔

Minimum avg. distance in miles

0.44

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

12.0 / 4.0 / 0.6 ✔

Flight holding stack identified?

No

Altitude for all flights

26,747 ✔

Altitude of departures between 1.5k and 15k feet

8,322 ✔

Altitude of flights below 20k feet

10,196 ✔

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

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

3.88

Thursday @ 8:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

5.17

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

4.83

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

4.67

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

3.83

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

3.50

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

3.33

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

2.67

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

9.25

Thursday @ 12:00 - 2 time(s) in 4 weeks. Approx:6 flight events.