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

21/11/2021 17:49:46

UK Postcode

EAST-GRINSTEAD-TENNIS-CLUB , WEST-SUSSEX , RH19 4EE

Baseline geo-coordinates

51.1221 , -0.010034

Survey type

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

Assessment band

OCCASIONAL

Assessment actual value

4.70

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

1,251 / 40.4 / 2.4 ✔

Flights above 26k feet.

216 / 7.0 / 0.4 ✔

Flights between 16k and 26k feet

962 / 31.0 / 1.8 ❌ (306)

Flights between 13k and 15k feet

15 / 0.5 / 0.0 ✔

Flights between 7k and 12k feet

32 / 1.0 / 0.1 ✔

Flights between 6k and 7k feet

9 / 0.3 / 0.0 ✔

Flights between 5k and 6k feet

9 / 0.3 / 0.0 ✔

Flights between 4k and 5k feet

5 / 0.2 / 0.0 ✔

Flights between 3k and 4k feet

0 ✔

Flights below 3k feet

3 / 0.1 / 0.0 ✔

4 or more flights per hour

66 / 2.1 ✔

9 or more flights per hour

1 / 0.0 ✔

Departures between 1.5k and 15k feet

35 / 1.1 / 0.1 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

1 / 0.0

1 AM

1 / 0.0

2 AM

2 / 0.1

3 AM

9 / 0.3

4 AM

3 / 0.1

5 AM

11 / 0.4

6 AM

37 / 1.2

7 AM

77 / 2.5

8 AM to 9 PM

1,015 / 32.7 / 2.3

10 PM

59 / 1.9

11 PM

22 / 0.7

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

16 ✔

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

49 ❌ (42)

Minimum avg. distance in miles

0.64

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

8.0 / 4.0 / 0.4 ✔

Flight holding stack identified?

No

Altitude for all flights

21,984 ✔

Altitude of departures between 1.5k and 15k feet

12,469 ✔

Altitude of flights below 20k feet

18,970 ✔

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

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

5.50

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

5.50

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

4.33

Friday @ 11:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

3.67

Saturday @ 15:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

3.00

Sunday @ 21:00 - 3 time(s) in 4 weeks. Approx:2 flight events.

6.50

Friday @ 17:00 - 2 time(s) in 4 weeks. Approx:5 flight events.

5.25

Thursday @ 18:00 - 2 time(s) in 4 weeks. Approx:3 flight events.