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

28/12/2021 12:05:14

UK Postcode

KINGSTON-TUDOR , LONDON , KT2 5NQ

Baseline geo-coordinates

51.4275 , -0.30466

Survey type

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

Assessment band

FREQUENT

Assessment actual value

13.07

Assessment description

Sound equates to an "A" road or a busy "B" road i.e. regular traffic that will be noticeable at peak times which includes evenings and weekends. Location is on a primary 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 between 4-10. Some of the flights will be below 7000 feet.

Band range

Lower: 12.0 --> Upper: 16.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

1,581 / 51.0 / 3.0 ✔

Flights above 26k feet.

231 / 7.5 / 0.4 ✔

Flights between 16k and 26k feet

296 / 9.5 / 0.6 ✔

Flights between 13k and 15k feet

57 / 1.8 / 0.1 ✔

Flights between 7k and 12k feet

92 / 3.0 / 0.2 ✔

Flights between 6k and 7k feet

27 / 0.9 / 0.1 ✔

Flights between 5k and 6k feet

62 / 2.0 / 0.1 ✔

Flights between 4k and 5k feet

263 / 8.5 / 0.5 ✔

Flights between 3k and 4k feet

387 / 12.5 / 0.7 ❌ (262)

Flights below 3k feet

166 / 5.4 / 0.3 ✔

4 or more flights per hour

136 / 4.4 ✔

9 or more flights per hour

21 / 0.7 ✔

Departures between 1.5k and 15k feet

839 / 27.1 / 1.6 ❌ (380)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

7 / 0.2

1 AM

5 / 0.2

2 AM

3 / 0.1

3 AM

8 / 0.3

4 AM

4 / 0.1

5 AM

14 / 0.5

6 AM

51 / 1.6

7 AM

105 / 3.4

8 AM to 9 PM

1,219 / 39.3 / 2.8

10 PM

80 / 2.6

11 PM

38 / 1.2

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

20 ✔

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

52 ❌ (43)

Minimum avg. distance in miles

0.45

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

35.0 / 18.0 / 1.8 ✔

Flight holding stack identified?

No

Altitude for all flights

11,928 ❌ (16,202)

Altitude of departures between 1.5k and 15k feet

3,959 ❌ (7,809)

Altitude of flights below 20k feet

7,536 ❌ (8,007)

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

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

13.75

Saturday @ 14:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

10.13

Monday @ 9:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

10.00

Saturday @ 16:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

14.67

Monday @ 14:00 - 3 time(s) in 4 weeks. Approx:7 flight events.

13.33

Monday @ 12:00 - 3 time(s) in 4 weeks. Approx:6 flight events.

12.67

Sunday @ 12:00 - 3 time(s) in 4 weeks. Approx:6 flight events.

11.67

Tuesday @ 15:00 - 3 time(s) in 4 weeks. Approx:6 flight events.

11.00

Tuesday @ 9:00 - 3 time(s) in 4 weeks. Approx:5 flight events.