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

10/08/2021 07:58:07

UK Postcode

STOCK , ESSEX , CM4 9BD

Baseline geo-coordinates

51.6648 , 0.446889

Survey type

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

Assessment band

REGULAR

Assessment actual value

8.55

Assessment description

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

Band range

Lower: 7.0 --> Upper: 12.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

3,171 / 102.3 / 6.0 ❌ (920)

Flights above 26k feet.

648 / 20.9 / 1.2 ❌ (164)

Flights between 16k and 26k feet

129 / 4.2 / 0.2 ❌ (78)

Flights between 13k and 15k feet

100 / 3.2 / 0.2 ❌ (34)

Flights between 7k and 12k feet

2,183 / 70.4 / 4.1 ❌ (107)

Flights between 6k and 7k feet

21 / 0.7 / 0.0 ✔

Flights between 5k and 6k feet

9 / 0.3 / 0.0 ✔

Flights between 4k and 5k feet

3 / 0.1 / 0.0 ✔

Flights between 3k and 4k feet

6 / 0.2 / 0.0 ✔

Flights below 3k feet

72 / 2.3 / 0.1 ✔

4 or more flights per hour

339 / 10.9 ❌ (62)

9 or more flights per hour

43 / 1.4 ❌ (18)

Departures between 1.5k and 15k feet

47 / 1.5 / 0.1 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

17 / 0.5

1 AM

14 / 0.5

2 AM

7 / 0.2

3 AM

9 / 0.3

4 AM

32 / 1.0

5 AM

49 / 1.6

6 AM

173 / 5.6

7 AM

180 / 5.8

8 AM to 9 PM

2,556 / 82.5 / 5.9

10 PM

56 / 1.8

11 PM

42 / 1.4

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

19 ✔

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

41 ✔

Minimum avg. distance in miles

0.32

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

73.0 / 30.0 / 3.8 ❌ (20)

Flight holding stack identified?

No

Altitude for all flights

15,751 ❌ (15,857)

Altitude of departures between 1.5k and 15k feet

9,214 ✔

Altitude of flights below 20k feet

10,630 ✔

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

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

11.20

Sunday @ 14:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

10.80

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

9.80

Sunday @ 18:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

9.60

Monday @ 11:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

9.40

Monday @ 6:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

8.90

Sunday @ 12:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

8.70

Sunday @ 16:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

8.60

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

8.50

Sunday @ 17:00 - 4 time(s) in 4 weeks. Approx:6 flight events.