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

06/01/2021 13:42:37

UK Postcode

PENSHURST , KENT , TN11 8BD

Baseline geo-coordinates

51.1728 , 0.183218

Survey type

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

Assessment band

OCCASIONAL

Assessment actual value

4.56

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

488 / 15.7 / 0.9 ✔

Flights above 26k feet.

53 / 1.7 / 0.1 ✔

Flights between 16k and 26k feet

58 / 1.9 / 0.1 ✔

Flights between 13k and 15k feet

31 / 1.0 / 0.1 ✔

Flights between 7k and 12k feet

106 / 3.4 / 0.2 ✔

Flights between 6k and 7k feet

1 / 0.0 / 0.0 ✔

Flights between 5k and 6k feet

24 / 0.8 / 0.0 ✔

Flights between 4k and 5k feet

124 / 4.0 / 0.2 ✔

Flights between 3k and 4k feet

62 / 2.0 / 0.1 ✔

Flights below 3k feet

29 / 0.9 / 0.1 ✔

4 or more flights per hour

19 / 0.6 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

80 / 2.6 / 0.2 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

7 / 0.2

1 AM

3 / 0.1

2 AM

1 / 0.0

3 AM

7 / 0.2

4 AM

4 / 0.1

5 AM

11 / 0.4

6 AM

22 / 0.7

7 AM

20 / 0.6

8 AM to 9 PM

377 / 12.2 / 0.9

10 PM

16 / 0.5

11 PM

18 / 0.6

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

21 ✔

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

59 ❌ (41)

Minimum avg. distance in miles

0.70

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

8.0 / 5.0 / 0.4 ✔

Flight holding stack identified?

No

Altitude for all flights

11,334 ❌ (16,135)

Altitude of departures between 1.5k and 15k feet

10,854 ✔

Altitude of flights below 20k feet

7,671 ✔

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

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

4.50

Wednesday @ 14:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

4.33

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

3.33

Wednesday @ 13:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

2.83

Sunday @ 12:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

9.50

Saturday @ 13:00 - 2 time(s) in 4 weeks. Approx:6 flight events.

5.00

Tuesday @ 9:00 - 2 time(s) in 4 weeks. Approx:4 flight events.

4.50

Saturday @ 20:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

4.00

Saturday @ 7:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.50

Saturday @ 15:00 - 2 time(s) in 4 weeks. Approx:3 flight events.