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

25/11/2020 18:57:02

UK Postcode

RUDGWICK , WEST SUSSEX , RH12 3AA

Baseline geo-coordinates

51.1086 , -0.442857

Survey type

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

Assessment band

OCCASIONAL

Assessment actual value

5.32

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

705 / 22.7 / 1.3 ✔

Flights above 26k feet.

120 / 3.9 / 0.2 ✔

Flights between 16k and 26k feet

105 / 3.4 / 0.2 ✔

Flights between 13k and 15k feet

31 / 1.0 / 0.1 ✔

Flights between 7k and 12k feet

190 / 6.1 / 0.4 ✔

Flights between 6k and 7k feet

54 / 1.7 / 0.1 ✔

Flights between 5k and 6k feet

36 / 1.2 / 0.1 ✔

Flights between 4k and 5k feet

18 / 0.6 / 0.0 ✔

Flights between 3k and 4k feet

66 / 2.1 / 0.1 ✔

Flights below 3k feet

85 / 2.7 / 0.2 ✔

4 or more flights per hour

38 / 1.2 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

298 / 9.6 / 0.6 ❌ (239)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

1 AM

3 / 0.1

2 AM

3 / 0.1

3 AM

5 / 0.2

4 AM

3 / 0.1

5 AM

8 / 0.3

6 AM

30 / 1.0

7 AM

60 / 1.9

8 AM to 9 PM

550 / 17.7 / 1.3

10 PM

10 / 0.3

11 PM

6 / 0.2

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

22 ❌ (22)

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

35 ✔

Minimum avg. distance in miles

0.62

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

12.0 / 4.0 / 0.6 ✔

Flight holding stack identified?

No

Altitude for all flights

13,542 ❌ (16,135)

Altitude of departures between 1.5k and 15k feet

7,977 ✔

Altitude of flights below 20k feet

8,169 ✔

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

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

5.13

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

4.75

Friday @ 15:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

3.38

Monday @ 17:00 - 4 time(s) in 4 weeks. Approx:2 flight events.

6.83

Monday @ 7:00 - 3 time(s) in 4 weeks. Approx:4 flight events.

5.17

Saturday @ 7:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

4.83

Saturday @ 9:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

4.33

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

4.17

Monday @ 12:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

3.83

Monday @ 15:00 - 3 time(s) in 4 weeks. Approx:3 flight events.