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

22/07/2022 18:36:08

UK Postcode

BRENTWOOD-WARLEY , ESSEX , CM13 3JP

Baseline geo-coordinates

51.5881 , 0.29083

Survey type

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

Assessment band

REGULAR

Assessment actual value

9.39

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

2,842 / 91.7 / 5.4 ✔

Flights above 26k feet.

1,005 / 32.4 / 1.9 ❌ (630)

Flights between 16k and 26k feet

114 / 3.7 / 0.2 ✔

Flights between 13k and 15k feet

19 / 0.6 / 0.0 ✔

Flights between 7k and 12k feet

562 / 18.1 / 1.1 ❌ (440)

Flights between 6k and 7k feet

170 / 5.5 / 0.3 ✔

Flights between 5k and 6k feet

216 / 7.0 / 0.4 ✔

Flights between 4k and 5k feet

227 / 7.3 / 0.4 ✔

Flights between 3k and 4k feet

280 / 9.0 / 0.5 ❌ (267)

Flights below 3k feet

249 / 8.0 / 0.5 ✔

4 or more flights per hour

213 / 6.9 ❌ (209)

9 or more flights per hour

24 / 0.8 ✔

Departures between 1.5k and 15k feet

746 / 24.1 / 1.4 ❌ (417)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

27 / 0.9

1 AM

27 / 0.9

2 AM

32 / 1.0

3 AM

11 / 0.4

4 AM

18 / 0.6

5 AM

62 / 2.0

6 AM

48 / 1.5

7 AM

176 / 5.7

8 AM to 9 PM

2,277 / 73.5 / 5.2

10 PM

64 / 2.1

11 PM

45 / 1.5

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

34 ✔

Minimum avg. distance in miles

0.48

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

53.0 / 19.0 / 2.8 ✔

Flight holding stack identified?

No

Altitude for all flights

16,843 ✔

Altitude of departures between 1.5k and 15k feet

5,055 ❌ (7,646)

Altitude of flights below 20k feet

6,370 ❌ (7,967)

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

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

11.80

Friday @ 8:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

9.70

Friday @ 19:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

9.20

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

9.00

Sunday @ 13:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

8.80

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

8.00

Friday @ 11:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

7.70

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

7.30

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

6.90

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