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

12/08/2024 07:58:37

UK Postcode

LANCING , WEST SUSSEX , BN15 8PQ

Baseline geo-coordinates

50.822 , -0.325675

Survey type

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

Assessment band

INTERMITTENT

Assessment actual value

6.25

Assessment description

Will encounter some day-time noise disturbances that are caused by the volumes of planes overflying Also expect a possible visual impact too.

Band range

Lower: 4.0 --> Upper: 7.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

2,276 / 73.4 / 4.3 ✔

Flights above 26k feet.

586 / 18.9 / 1.1 ✔

Flights between 16k and 26k feet

530 / 17.1 / 1.0 ❌ (308)

Flights between 13k and 15k feet

322 / 10.4 / 0.6 ❌ (151)

Flights between 7k and 12k feet

707 / 22.8 / 1.3 ❌ (430)

Flights between 6k and 7k feet

2 / 0.1 / 0.0 ✔

Flights between 5k and 6k feet

4 / 0.1 / 0.0 ✔

Flights between 4k and 5k feet

9 / 0.3 / 0.0 ✔

Flights between 3k and 4k feet

19 / 0.6 / 0.0 ✔

Flights below 3k feet

97 / 3.1 / 0.2 ✔

4 or more flights per hour

189 / 6.1 ✔

9 or more flights per hour

4 / 0.1 ✔

Departures between 1.5k and 15k feet

260 / 8.4 / 0.5 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

26 / 0.8

1 AM

24 / 0.8

2 AM

16 / 0.5

3 AM

4 / 0.1

4 AM

9 / 0.3

5 AM

32 / 1.0

6 AM

128 / 4.1

7 AM

149 / 4.8

8 AM to 9 PM

1,697 / 54.7 / 3.9

10 PM

82 / 2.6

11 PM

76 / 2.5

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

15 ✔

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

53 ❌ (43)

Minimum avg. distance in miles

0.47

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

38.0 / 20.0 / 2.0 ✔

Flight holding stack identified?

No

Altitude for all flights

18,771 ✔

Altitude of departures between 1.5k and 15k feet

12,488 ✔

Altitude of flights below 20k feet

12,658 ✔

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

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

9.10

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

5.60

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

4.30

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

9.50

Friday @ 15:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

7.00

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

6.00

Saturday @ 23:00 - 4 time(s) in 4 weeks. Approx:5 flight events.