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

05/02/2023 19:14:41

UK Postcode

LEEDS-BRADFORD-AIRPORT , WEST YORKSHIRE , LS19 7TU

Baseline geo-coordinates

53.8704 , -1.66278

Survey type

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

Assessment band

OCCASIONAL

Assessment actual value

6.43

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

1,673 / 54.0 / 3.2 ✔

Flights above 26k feet.

379 / 12.2 / 0.7 ✔

Flights between 16k and 26k feet

170 / 5.5 / 0.3 ✔

Flights between 13k and 15k feet

40 / 1.3 / 0.1 ✔

Flights between 7k and 12k feet

88 / 2.8 / 0.2 ✔

Flights between 6k and 7k feet

25 / 0.8 / 0.0 ✔

Flights between 5k and 6k feet

35 / 1.1 / 0.1 ✔

Flights between 4k and 5k feet

32 / 1.0 / 0.1 ✔

Flights between 3k and 4k feet

52 / 1.7 / 0.1 ✔

Flights below 3k feet

843 / 27.2 / 1.6 ❌ (650)

4 or more flights per hour

29 / 0.9 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

89 / 2.9 / 0.2 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

3 / 0.1

1 AM

1 / 0.0

2 AM

1 / 0.0

3 AM

1 / 0.0

4 AM

4 / 0.1

5 AM

1 / 0.0

6 AM

19 / 0.6

7 AM

67 / 2.2

8 AM to 9 PM

864 / 27.9 / 2.0

10 PM

29 / 0.9

11 PM

16 / 0.5

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

76 ❌ (22)

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

50 ❌ (43)

Minimum avg. distance in miles

0.28

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

59.0 / 30.0 / 3.1 ✔

Flight holding stack identified?

Yes ❌

Altitude for all flights

19,027 ✔

Altitude of departures between 1.5k and 15k feet

2,325 ❌ (7,809)

Altitude of flights below 20k feet

6,386 ❌ (8,007)

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

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

10.80

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

9.50

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

9.20

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

8.00

Saturday @ 6:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

7.80

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

7.20

Friday @ 17:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

6.80

Saturday @ 9:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

6.60

Sunday @ 7:00 - 4 time(s) in 4 weeks. Approx:6 flight events.