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

06/11/2022 17:54:16

UK Postcode

OXTED , SURREY , RH8 0EX

Baseline geo-coordinates

51.2561 , 0.006528

Survey type

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

Assessment band

OCCASIONAL

Assessment actual value

6.11

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

1,636 / 52.8 / 3.1 ✔

Flights above 26k feet.

387 / 12.5 / 0.7 ✔

Flights between 16k and 26k feet

104 / 3.4 / 0.2 ✔

Flights between 13k and 15k feet

151 / 4.9 / 0.3 ❌ (145)

Flights between 7k and 12k feet

815 / 26.3 / 1.5 ❌ (451)

Flights between 6k and 7k feet

44 / 1.4 / 0.1 ✔

Flights between 5k and 6k feet

28 / 0.9 / 0.1 ✔

Flights between 4k and 5k feet

3 / 0.1 / 0.0 ✔

Flights between 3k and 4k feet

4 / 0.1 / 0.0 ✔

Flights below 3k feet

100 / 3.2 / 0.2 ✔

4 or more flights per hour

122 / 3.9 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

939 / 30.3 / 1.8 ❌ (453)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

7 / 0.2

1 AM

2 / 0.1

2 AM

8 / 0.3

3 AM

6 / 0.2

4 AM

17 / 0.5

5 AM

20 / 0.6

6 AM

71 / 2.3

7 AM

76 / 2.5

8 AM to 9 PM

1,295 / 41.8 / 3.0

10 PM

77 / 2.5

11 PM

23 / 0.7

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

49 ❌ (41)

Minimum avg. distance in miles

0.47

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

29.0 / 14.0 / 1.5 ✔

Flight holding stack identified?

No

Altitude for all flights

16,495 ✔

Altitude of departures between 1.5k and 15k feet

10,609 ✔

Altitude of flights below 20k feet

10,449 ✔

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

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

5.40

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

4.50

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

7.50

Monday @ 10:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

7.38

Sunday @ 16:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

6.00

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

5.25

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

5.00

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

4.75

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