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

26/07/2022 19:25:07

UK Postcode

GODSTONE-CENTRAL , SURREY , RH9 8BJ

Baseline geo-coordinates

51.2457 , -0.057933

Survey type

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

Assessment band

OCCASIONAL

Assessment actual value

6.48

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

2,128 / 68.6 / 4.0 ✔

Flights above 26k feet.

555 / 17.9 / 1.1 ✔

Flights between 16k and 26k feet

217 / 7.0 / 0.4 ✔

Flights between 13k and 15k feet

51 / 1.6 / 0.1 ✔

Flights between 7k and 12k feet

960 / 31.0 / 1.8 ❌ (415)

Flights between 6k and 7k feet

59 / 1.9 / 0.1 ✔

Flights between 5k and 6k feet

44 / 1.4 / 0.1 ✔

Flights between 4k and 5k feet

7 / 0.2 / 0.0 ✔

Flights between 3k and 4k feet

3 / 0.1 / 0.0 ✔

Flights below 3k feet

232 / 7.5 / 0.4 ✔

4 or more flights per hour

174 / 5.6 ✔

9 or more flights per hour

6 / 0.2 ✔

Departures between 1.5k and 15k feet

1,081 / 34.9 / 2.1 ❌ (428)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

24 / 0.8

1 AM

8 / 0.3

2 AM

8 / 0.3

3 AM

11 / 0.4

4 AM

14 / 0.5

5 AM

19 / 0.6

6 AM

56 / 1.8

7 AM

92 / 3.0

8 AM to 9 PM

1,675 / 54.0 / 3.9

10 PM

70 / 2.3

11 PM

41 / 1.3

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

49 ❌ (42)

Minimum avg. distance in miles

0.46

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

41.0 / 21.0 / 2.2 ✔

Flight holding stack identified?

No

Altitude for all flights

16,956 ✔

Altitude of departures between 1.5k and 15k feet

9,633 ✔

Altitude of flights below 20k feet

9,742 ✔

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

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

9.10

Friday @ 9:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

8.20

Sunday @ 16:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

7.20

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

7.00

Friday @ 15:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

6.60

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

6.20

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

6.10

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

5.40

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