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

12/03/2024 23:16:02

UK Postcode

ASHTON-UNDER-LYNE , MANCHESTER , OL6 6EP

Baseline geo-coordinates

53.4899 , -2.09075

Survey type

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

Assessment band

OCCASIONAL

Assessment actual value

5.72

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

1,995 / 64.4 / 3.8 ✔

Flights above 26k feet.

975 / 31.5 / 1.9 ❌ (618)

Flights between 16k and 26k feet

135 / 4.4 / 0.3 ✔

Flights between 13k and 15k feet

90 / 2.9 / 0.2 ✔

Flights between 7k and 12k feet

342 / 11.0 / 0.6 ✔

Flights between 6k and 7k feet

10 / 0.3 / 0.0 ✔

Flights between 5k and 6k feet

8 / 0.3 / 0.0 ✔

Flights between 4k and 5k feet

109 / 3.5 / 0.2 ✔

Flights between 3k and 4k feet

284 / 9.2 / 0.5 ❌ (269)

Flights below 3k feet

42 / 1.4 / 0.1 ✔

4 or more flights per hour

79 / 2.5 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

387 / 12.5 / 0.7 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

31 / 1.0

1 AM

20 / 0.6

2 AM

25 / 0.8

3 AM

10 / 0.3

4 AM

16 / 0.5

5 AM

11 / 0.4

6 AM

67 / 2.2

7 AM

122 / 3.9

8 AM to 9 PM

1,567 / 50.5 / 3.6

10 PM

68 / 2.2

11 PM

45 / 1.5

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

16 ✔

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

43 ❌ (43)

Minimum avg. distance in miles

0.43

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

22.0 / 10.0 / 1.2 ✔

Flight holding stack identified?

No

Altitude for all flights

21,734 ✔

Altitude of departures between 1.5k and 15k feet

11,361 ✔

Altitude of flights below 20k feet

8,679 ✔

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

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

8.13

Friday @ 7:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

6.13

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

5.50

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

4.38

Monday @ 11:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

3.75

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

7.50

Monday @ 7:00 - 3 time(s) in 4 weeks. Approx:5 flight events.

6.67

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

6.50

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

6.17

Wednesday @ 11:00 - 3 time(s) in 4 weeks. Approx:4 flight events.