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

26/05/2023 09:28:42

UK Postcode

CHEADLE-HULME , MANCHESTER , SK8 5JP

Baseline geo-coordinates

53.3832 , -2.19652

Survey type

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

Assessment band

VERY HIGH

Assessment actual value

25.05

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

8,326 / 268.6 / 15.8 ❌ (3,135)

Flights above 26k feet.

636 / 20.5 / 1.2 ❌ (634)

Flights between 16k and 26k feet

79 / 2.5 / 0.1 ✔

Flights between 13k and 15k feet

3 / 0.1 / 0.0 ✔

Flights between 7k and 12k feet

29 / 0.9 / 0.1 ✔

Flights between 6k and 7k feet

1 / 0.0 / 0.0 ✔

Flights between 5k and 6k feet

2 / 0.1 / 0.0 ✔

Flights between 4k and 5k feet

8 / 0.3 / 0.0 ✔

Flights between 3k and 4k feet

119 / 3.8 / 0.2 ✔

Flights below 3k feet

7,449 / 240.3 / 14.1 ❌ (650)

4 or more flights per hour

326 / 10.5 ❌ (203)

9 or more flights per hour

248 / 8.0 ❌ (83)

Departures between 1.5k and 15k feet

1,648 / 53.2 / 3.1 ❌ (380)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

87 / 2.8

1 AM

71 / 2.3

2 AM

77 / 2.5

3 AM

41 / 1.3

4 AM

19 / 0.6

5 AM

13 / 0.4

6 AM

281 / 9.1

7 AM

329 / 10.6

8 AM to 9 PM

3,784 / 122.1 / 8.7

10 PM

155 / 5.0

11 PM

137 / 4.4

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

34 ❌ (22)

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

51 ❌ (43)

Minimum avg. distance in miles

0.45

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

245.0 / 122.0 / 12.9 ❌ (72)

Flight holding stack identified?

No

Altitude for all flights

6,151 ❌ (16,202)

Altitude of departures between 1.5k and 15k feet

2,412 ❌ (7,809)

Altitude of flights below 20k feet

1,804 ❌ (8,007)

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

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

32.40

Thursday @ 13:00 - 4 time(s) in 4 weeks. Approx:20 flight events.

31.90

Friday @ 8:00 - 4 time(s) in 4 weeks. Approx:17 flight events.

29.40

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

28.10

Friday @ 6:00 - 4 time(s) in 4 weeks. Approx:14 flight events.

27.60

Thursday @ 11:00 - 4 time(s) in 4 weeks. Approx:17 flight events.

27.00

Thursday @ 14:00 - 4 time(s) in 4 weeks. Approx:17 flight events.

26.50

Wednesday @ 14:00 - 4 time(s) in 4 weeks. Approx:16 flight events.