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

19/06/2024 08:11:04

UK Postcode

PIMLICO-NORTH-180624 , GREATER LONDON , SW1V 1PJ

Baseline geo-coordinates

51.4921 , -0.142973

Survey type

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

Assessment band

EXTREMELY HIGH

Assessment actual value

40.98

Assessment description

Highly likely to encounter both night-time and day-time noise disturbances that are caused by high volumes of planes flying at at low altitude. Also expect a visual impact too.

Band range

Lower: 30.0 --> Upper: 1000.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

8,164 / 263.4 / 15.5 ❌ (3,428)

Flights above 26k feet.

620 / 20.0 / 1.2 ✔

Flights between 16k and 26k feet

171 / 5.5 / 0.3 ✔

Flights between 13k and 15k feet

76 / 2.5 / 0.1 ✔

Flights between 7k and 12k feet

73 / 2.4 / 0.1 ✔

Flights between 6k and 7k feet

46 / 1.5 / 0.1 ✔

Flights between 5k and 6k feet

98 / 3.2 / 0.2 ✔

Flights between 4k and 5k feet

775 / 25.0 / 1.5 ❌ (320)

Flights between 3k and 4k feet

6,163 / 198.8 / 11.7 ❌ (271)

Flights below 3k feet

142 / 4.6 / 0.3 ✔

4 or more flights per hour

274 / 8.8 ❌ (218)

9 or more flights per hour

226 / 7.3 ❌ (91)

Departures between 1.5k and 15k feet

14 / 0.5 / 0.0 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

20 / 0.6

1 AM

8 / 0.3

2 AM

10 / 0.3

3 AM

23 / 0.7

4 AM

80 / 2.6

5 AM

207 / 6.7

6 AM

515 / 16.6

7 AM

418 / 13.5

8 AM to 9 PM

6,456 / 208.3 / 14.9

10 PM

299 / 9.6

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

47 ❌ (43)

Minimum avg. distance in miles

0.86

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

237.0 / 111.0 / 12.5 ❌ (78)

Flight holding stack identified?

No

Altitude for all flights

6,551 ❌ (16,286)

Altitude of departures between 1.5k and 15k feet

9,938 ✔

Altitude of flights below 20k feet

4,088 ❌ (8,018)

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

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

8.50

Tuesday @ 22:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

42.25

Friday @ 6:00 - 4 time(s) in 4 weeks. Approx:24 flight events.

40.75

Sunday @ 14:00 - 4 time(s) in 4 weeks. Approx:24 flight events.

39.63

Monday @ 6:00 - 4 time(s) in 4 weeks. Approx:23 flight events.

36.63

Wednesday @ 6:00 - 4 time(s) in 4 weeks. Approx:21 flight events.

35.13

Thursday @ 12:00 - 4 time(s) in 4 weeks. Approx:21 flight events.

33.25

Thursday @ 6:00 - 4 time(s) in 4 weeks. Approx:19 flight events.

32.63

Friday @ 13:00 - 4 time(s) in 4 weeks. Approx:20 flight events.