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

23/08/2022 17:55:10

UK Postcode

MILLWALL-SOUTH , LONDON , E14 3SP

Baseline geo-coordinates

51.4921 , -0.025467

Survey type

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

Assessment band

VERY HIGH

Assessment actual value

20.28

Assessment description

Sound equates to a busy Dual Carriageway or Motorway i.e. very regular traffic that will be noticeable at peak times which includes evenings and weekends. Location is on a flight path or primary flight corridor and subject to Arrivals and/or Departures. At times there will be multiple flight occurrences within the same hour, typically between 10 to 20.

Band range

Lower: 20.0 --> Upper: 30.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

4,561 / 147.1 / 8.7 ❌ (1,849)

Flights above 26k feet.

850 / 27.4 / 1.6 ❌ (381)

Flights between 16k and 26k feet

211 / 6.8 / 0.4 ❌ (175)

Flights between 13k and 15k feet

79 / 2.5 / 0.1 ✔

Flights between 7k and 12k feet

26 / 0.8 / 0.0 ✔

Flights between 6k and 7k feet

36 / 1.2 / 0.1 ✔

Flights between 5k and 6k feet

916 / 29.5 / 1.7 ❌ (210)

Flights between 4k and 5k feet

2,169 / 70.0 / 4.1 ❌ (205)

Flights between 3k and 4k feet

222 / 7.2 / 0.4 ❌ (158)

Flights below 3k feet

52 / 1.7 / 0.1 ✔

4 or more flights per hour

318 / 10.3 ❌ (127)

9 or more flights per hour

215 / 6.9 ❌ (49)

Departures between 1.5k and 15k feet

26 / 0.8 / 0.0 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

46 / 1.5

1 AM

36 / 1.2

2 AM

22 / 0.7

3 AM

23 / 0.7

4 AM

52 / 1.7

5 AM

139 / 4.5

6 AM

301 / 9.7

7 AM

348 / 11.2

8 AM to 9 PM

3,394 / 109.5 / 7.8

10 PM

78 / 2.5

11 PM

50 / 1.6

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

51 ❌ (41)

Minimum avg. distance in miles

0.49

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

114.0 / 58.0 / 6.0 ❌ (41)

Flight holding stack identified?

No

Altitude for all flights

11,120 ❌ (16,135)

Altitude of departures between 1.5k and 15k feet

10,726 ✔

Altitude of flights below 20k feet

5,470 ❌ (7,566)

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

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

19.50

Sunday @ 15:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

19.00

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

17.30

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

16.90

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

16.00

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

32.50

Sunday @ 6:00 - 4 time(s) in 4 weeks. Approx:18 flight events.

28.00

Tuesday @ 7:00 - 4 time(s) in 4 weeks. Approx:16 flight events.

27.50

Monday @ 18:00 - 4 time(s) in 4 weeks. Approx:15 flight events.

25.75

Sunday @ 12:00 - 4 time(s) in 4 weeks. Approx:14 flight events.