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

15/08/2022 16:21:00

UK Postcode

LOWER-NAZEING , ESSEX , EN9 2RT

Baseline geo-coordinates

51.7373 , 0.043732

Survey type

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

Assessment band

REGULAR

Assessment actual value

10.23

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

2,141 / 69.1 / 4.1 ❌ (1,849)

Flights above 26k feet.

822 / 26.5 / 1.6 ❌ (381)

Flights between 16k and 26k feet

293 / 9.5 / 0.6 ❌ (175)

Flights between 13k and 15k feet

66 / 2.1 / 0.1 ✔

Flights between 7k and 12k feet

317 / 10.2 / 0.6 ❌ (228)

Flights between 6k and 7k feet

8 / 0.3 / 0.0 ✔

Flights between 5k and 6k feet

10 / 0.3 / 0.0 ✔

Flights between 4k and 5k feet

12 / 0.4 / 0.0 ✔

Flights between 3k and 4k feet

350 / 11.3 / 0.7 ❌ (158)

Flights below 3k feet

263 / 8.5 / 0.5 ✔

4 or more flights per hour

98 / 3.2 ✔

9 or more flights per hour

18 / 0.6 ✔

Departures between 1.5k and 15k feet

308 / 9.9 / 0.6 ❌ (239)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

185 / 6.0

1 AM

107 / 3.5

2 AM

75 / 2.4

3 AM

71 / 2.3

4 AM

36 / 1.2

5 AM

12 / 0.4

6 AM

25 / 0.8

7 AM

75 / 2.4

8 AM to 9 PM

1,218 / 39.3 / 2.8

10 PM

113 / 3.6

11 PM

172 / 5.5

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

79 ❌ (41)

Minimum avg. distance in miles

0.53

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

26.0 / 20.0 / 1.4 ✔

Flight holding stack identified?

No

Altitude for all flights

19,033 ✔

Altitude of departures between 1.5k and 15k feet

10,961 ✔

Altitude of flights below 20k feet

6,567 ❌ (7,566)

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

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

19.00

Friday @ 0:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

11.38

Thursday @ 23:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

9.63

Friday @ 1:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

9.13

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

8.75

Friday @ 2:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

3.75

Friday @ 15:00 - 4 time(s) in 4 weeks. Approx:2 flight events.

3.63

Thursday @ 13:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

3.13

Friday @ 12:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

21.17

Saturday @ 0:00 - 3 time(s) in 4 weeks. Approx:12 flight events.