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

29/08/2022 16:25:37

UK Postcode

HAXTED-NORTH , SURREY , TN8 6QD

Baseline geo-coordinates

51.2054 , 0.025392

Survey type

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

Assessment band

REGULAR

Assessment actual value

8.35

Assessment description

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

Band range

Lower: 7.0 --> Upper: 12.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

2,381 / 76.8 / 4.5 ❌ (1,863)

Flights above 26k feet.

343 / 11.1 / 0.7 ✔

Flights between 16k and 26k feet

114 / 3.7 / 0.2 ✔

Flights between 13k and 15k feet

77 / 2.5 / 0.1 ✔

Flights between 7k and 12k feet

1,371 / 44.2 / 2.6 ❌ (227)

Flights between 6k and 7k feet

102 / 3.3 / 0.2 ✔

Flights between 5k and 6k feet

70 / 2.3 / 0.1 ✔

Flights between 4k and 5k feet

64 / 2.1 / 0.1 ✔

Flights between 3k and 4k feet

1 / 0.0 / 0.0 ✔

Flights below 3k feet

239 / 7.7 / 0.5 ✔

4 or more flights per hour

248 / 8.0 ❌ (127)

9 or more flights per hour

26 / 0.8 ✔

Departures between 1.5k and 15k feet

1,553 / 50.1 / 2.9 ❌ (238)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

17 / 0.5

1 AM

8 / 0.3

2 AM

2 / 0.1

3 AM

7 / 0.2

4 AM

14 / 0.5

5 AM

15 / 0.5

6 AM

115 / 3.7

7 AM

152 / 4.9

8 AM to 9 PM

1,830 / 59.0 / 4.2

10 PM

91 / 2.9

11 PM

40 / 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

48 ❌ (41)

Minimum avg. distance in miles

0.46

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

59.0 / 28.0 / 3.1 ❌ (42)

Flight holding stack identified?

No

Altitude for all flights

13,283 ❌ (16,104)

Altitude of departures between 1.5k and 15k feet

9,474 ✔

Altitude of flights below 20k feet

9,282 ✔

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

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

8.90

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

8.30

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

7.50

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

7.00

Sunday @ 9:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

6.60

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

6.10

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

12.63

Friday @ 9:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

11.13

Wednesday @ 9:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

10.88

Sunday @ 16:00 - 4 time(s) in 4 weeks. Approx:7 flight events.