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

10/07/2023 21:02:48

UK Postcode

MARGARETTING , ESSEX , CM2 8UQ

Baseline geo-coordinates

51.67 , 0.498369

Survey type

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

Assessment band

HIGH

Assessment actual value

16.05

Assessment description

Sound equates to a busy "A" road or Dual Carriageway i.e. regular traffic that will be noticeable at peak times which includes evenings and weekends. Location is on a primary flight corridor or busy flight route or in a flight holding stack area. At times there will be multiple flight occurrences within the same hour, typically between 4-15. Some of the flights will be below 7000 feet.

Band range

Lower: 16.0 --> Upper: 20.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

7,690 / 248.1 / 14.6 ❌ (3,131)

Flights above 26k feet.

1,471 / 47.5 / 2.8 ❌ (630)

Flights between 16k and 26k feet

470 / 15.2 / 0.9 ❌ (292)

Flights between 13k and 15k feet

1,216 / 39.2 / 2.3 ❌ (145)

Flights between 7k and 12k feet

4,399 / 141.9 / 8.3 ❌ (451)

Flights between 6k and 7k feet

22 / 0.7 / 0.0 ✔

Flights between 5k and 6k feet

24 / 0.8 / 0.0 ✔

Flights between 4k and 5k feet

21 / 0.7 / 0.0 ✔

Flights between 3k and 4k feet

8 / 0.3 / 0.0 ✔

Flights below 3k feet

59 / 1.9 / 0.1 ✔

4 or more flights per hour

525 / 16.9 ❌ (214)

9 or more flights per hour

408 / 13.2 ❌ (90)

Departures between 1.5k and 15k feet

83 / 2.7 / 0.2 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

45 / 1.5

1 AM

39 / 1.3

2 AM

18 / 0.6

3 AM

13 / 0.4

4 AM

20 / 0.6

5 AM

126 / 4.1

6 AM

306 / 9.9

7 AM

421 / 13.6

8 AM to 9 PM

6,339 / 204.5 / 14.6

10 PM

246 / 7.9

11 PM

87 / 2.8

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

51 ❌ (41)

Minimum avg. distance in miles

0.25

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

193.0 / 100.0 / 10.2 ❌ (72)

Flight holding stack identified?

No

Altitude for all flights

16,462 ✔

Altitude of departures between 1.5k and 15k feet

6,626 ❌ (7,444)

Altitude of flights below 20k feet

12,013 ✔

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

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

23.00

Monday @ 18:00 - 4 time(s) in 4 weeks. Approx:17 flight events.

20.60

Sunday @ 16:00 - 4 time(s) in 4 weeks. Approx:15 flight events.

19.40

Saturday @ 19:00 - 4 time(s) in 4 weeks. Approx:15 flight events.

19.20

Saturday @ 18:00 - 4 time(s) in 4 weeks. Approx:14 flight events.

18.60

Sunday @ 19:00 - 4 time(s) in 4 weeks. Approx:14 flight events.

18.30

Monday @ 19:00 - 4 time(s) in 4 weeks. Approx:14 flight events.

18.10

Monday @ 20:00 - 4 time(s) in 4 weeks. Approx:14 flight events.