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

09/10/2022 18:17:50

UK Postcode

GODSTONE-RED-BARN , SURREY , RH7 6LL

Baseline geo-coordinates

51.193 , -0.041585

Survey type

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

Assessment band

FREQUENT

Assessment actual value

14.52

Assessment description

Sound equates to an "A" road or a busy "B" road i.e. regular traffic that will be noticeable at peak times which includes evenings and weekends. Location is on a primary 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 between 4-10. Some of the flights will be below 7000 feet.

Band range

Lower: 12.0 --> Upper: 16.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

3,245 / 104.7 / 6.2 ✔

Flights above 26k feet.

474 / 15.3 / 0.9 ✔

Flights between 16k and 26k feet

219 / 7.1 / 0.4 ✔

Flights between 13k and 15k feet

62 / 2.0 / 0.1 ✔

Flights between 7k and 12k feet

1,636 / 52.8 / 3.1 ❌ (490)

Flights between 6k and 7k feet

79 / 2.5 / 0.1 ✔

Flights between 5k and 6k feet

21 / 0.7 / 0.0 ✔

Flights between 4k and 5k feet

97 / 3.1 / 0.2 ✔

Flights between 3k and 4k feet

422 / 13.6 / 0.8 ❌ (267)

Flights below 3k feet

235 / 7.6 / 0.4 ✔

4 or more flights per hour

330 / 10.6 ❌ (217)

9 or more flights per hour

74 / 2.4 ✔

Departures between 1.5k and 15k feet

2,360 / 76.1 / 4.5 ❌ (413)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

13 / 0.4

1 AM

3 / 0.1

2 AM

7 / 0.2

3 AM

1 / 0.0

4 AM

4 / 0.1

5 AM

18 / 0.6

6 AM

171 / 5.5

7 AM

215 / 6.9

8 AM to 9 PM

2,630 / 84.8 / 6.1

10 PM

121 / 3.9

11 PM

46 / 1.5

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

18 ✔

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

47 ❌ (43)

Minimum avg. distance in miles

0.44

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

82.0 / 39.0 / 4.3 ❌ (77)

Flight holding stack identified?

No

Altitude for all flights

12,536 ❌ (16,276)

Altitude of departures between 1.5k and 15k feet

7,878 ❌ (7,941)

Altitude of flights below 20k feet

8,421 ✔

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

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

16.70

Sunday @ 10:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

14.10

Sunday @ 12:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

12.90

Sunday @ 7:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

12.40

Sunday @ 8:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

11.30

Saturday @ 7:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

11.00

Saturday @ 8:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

10.90

Saturday @ 11:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

10.60

Saturday @ 12:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

10.00

Saturday @ 10:00 - 4 time(s) in 4 weeks. Approx:6 flight events.