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

03/02/2022 11:42:16

UK Postcode

TWYFORD-WORKINGHAM , BERKSHIRE , RG10 9HR

Baseline geo-coordinates

51.4802 , -0.864127

Survey type

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

Assessment band

REGULAR

Assessment actual value

9.64

Assessment description

Sound equates to a "B" road or busy "C" road i.e. regular traffic that will be noticeable at peak times which includes evenings and weekends. Location is on a secondary flight corridor or flight route or in a flight holding stack area. At times there will be multiple flight occurrences within the same hour, typically 4. Some of the flights will be below 7000 feet.

Band range

Lower: 7.0 --> Upper: 12.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

1,579 / 50.9 / 3.0 ✔

Flights above 26k feet.

282 / 9.1 / 0.5 ✔

Flights between 16k and 26k feet

125 / 4.0 / 0.2 ✔

Flights between 13k and 15k feet

22 / 0.7 / 0.0 ✔

Flights between 7k and 12k feet

660 / 21.3 / 1.3 ❌ (431)

Flights between 6k and 7k feet

84 / 2.7 / 0.2 ✔

Flights between 5k and 6k feet

17 / 0.5 / 0.0 ✔

Flights between 4k and 5k feet

49 / 1.6 / 0.1 ✔

Flights between 3k and 4k feet

40 / 1.3 / 0.1 ✔

Flights below 3k feet

300 / 9.7 / 0.6 ✔

4 or more flights per hour

131 / 4.2 ✔

9 or more flights per hour

26 / 0.8 ✔

Departures between 1.5k and 15k feet

775 / 25.0 / 1.5 ❌ (380)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

1 / 0.0

1 AM

2 / 0.1

2 AM

1 / 0.0

3 AM

8 / 0.3

4 AM

11 / 0.4

5 AM

11 / 0.4

6 AM

50 / 1.6

7 AM

54 / 1.7

8 AM to 9 PM

1,316 / 42.5 / 3.0

10 PM

7 / 0.2

11 PM

6 / 0.2

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

23 ❌ (22)

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

27 ✔

Minimum avg. distance in miles

0.45

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

35.0 / 10.0 / 1.8 ✔

Flight holding stack identified?

No

Altitude for all flights

13,376 ❌ (16,202)

Altitude of departures between 1.5k and 15k feet

8,035 ✔

Altitude of flights below 20k feet

7,408 ❌ (8,007)

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

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

8.70

Tuesday @ 10:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

7.50

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

16.50

Wednesday @ 12:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

15.25

Wednesday @ 10:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

13.88

Wednesday @ 13:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

11.50

Wednesday @ 14:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

7.88

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

7.13

Monday @ 14:00 - 4 time(s) in 4 weeks. Approx:5 flight events.