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

04/02/2024 17:52:21

UK Postcode

OXTED , SURREY , RH8 0EX

Baseline geo-coordinates

51.2561 , 0.006528

Survey type

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

Assessment band

OCCASIONAL

Assessment actual value

4.57

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

623 / 20.1 / 1.2 ✔

Flights above 26k feet.

98 / 3.2 / 0.2 ✔

Flights between 16k and 26k feet

44 / 1.4 / 0.1 ✔

Flights between 13k and 15k feet

89 / 2.9 / 0.2 ✔

Flights between 7k and 12k feet

323 / 10.4 / 0.6 ✔

Flights between 6k and 7k feet

19 / 0.6 / 0.0 ✔

Flights between 5k and 6k feet

9 / 0.3 / 0.0 ✔

Flights between 4k and 5k feet

2 / 0.1 / 0.0 ✔

Flights between 3k and 4k feet

0 ✔

Flights below 3k feet

39 / 1.3 / 0.1 ✔

4 or more flights per hour

15 / 0.5 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

386 / 12.5 / 0.7 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

1 / 0.0

1 AM

3 / 0.1

2 AM

3 AM

1 / 0.0

4 AM

3 / 0.1

5 AM

2 / 0.1

6 AM

10 / 0.3

7 AM

36 / 1.2

8 AM to 9 PM

516 / 16.6 / 1.2

10 PM

18 / 0.6

11 PM

7 / 0.2

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

17 ✔

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

51 ❌ (42)

Minimum avg. distance in miles

0.47

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

7.0 / 4.0 / 0.4 ✔

Flight holding stack identified?

No

Altitude for all flights

15,115 ❌ (15,914)

Altitude of departures between 1.5k and 15k feet

10,702 ✔

Altitude of flights below 20k feet

11,020 ✔

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

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

4.33

Friday @ 18:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

3.33

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

3.17

Sunday @ 11:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

6.75

Monday @ 12:00 - 2 time(s) in 4 weeks. Approx:5 flight events.

5.50

Sunday @ 10:00 - 2 time(s) in 4 weeks. Approx:4 flight events.

4.75

Friday @ 16:00 - 2 time(s) in 4 weeks. Approx:4 flight events.

4.25

Saturday @ 10:00 - 2 time(s) in 4 weeks. Approx:3 flight events.