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

28/09/2024 07:00:08

UK Postcode

LAMBETH-WALK , LONDON , SE11 4TZ

Baseline geo-coordinates

51.4939 , -0.108817

Survey type

31 days prior to: 28-Sep-2024 @01:10:40

Assessment band

FREQUENT

Assessment actual value

14.99

Assessment description

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: 12.0 --> Upper: 16.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

3,661 / 118.1 / 6.9 ❌ (3,156)

Flights above 26k feet.

687 / 22.2 / 1.3 ✔

Flights between 16k and 26k feet

304 / 9.8 / 0.6 ✔

Flights between 13k and 15k feet

56 / 1.8 / 0.1 ✔

Flights between 7k and 12k feet

17 / 0.5 / 0.0 ✔

Flights between 6k and 7k feet

6 / 0.2 / 0.0 ✔

Flights between 5k and 6k feet

50 / 1.6 / 0.1 ✔

Flights between 4k and 5k feet

890 / 28.7 / 1.7 ❌ (235)

Flights between 3k and 4k feet

615 / 19.8 / 1.2 ❌ (191)

Flights below 3k feet

1,036 / 33.4 / 2.0 ❌ (595)

4 or more flights per hour

329 / 10.6 ❌ (201)

9 or more flights per hour

118 / 3.8 ❌ (75)

Departures between 1.5k and 15k feet

11 / 0.4 / 0.0 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

28 / 0.9

Between 1am and 2am

20 / 0.6

Between 2am and 3am

12 / 0.4

Between 3am and 4am

11 / 0.4

Between 4am and 5am

18 / 0.6

Between 5am and 6am

51 / 1.6

Between 6am and 7am

173 / 5.6

Between 7am and 8am

200 / 6.5

Between 8am and 9pm

2,980 / 96.1 / 6.9

Between 10pm and 11pm

74 / 2.4

Between 11pm and Midnight

33 / 1.1

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

29 ✔

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

40 ✔

Minimum avg. distance in miles

0.42

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

87.0 / 35.0 / 4.6 ❌ (67)

Flight holding stack identified?

No

Altitude for all flights

10,667 ❌ (17,559)

Altitude of departures between 1.5k and 15k feet

7,511 ❌ (8,484)

Altitude of flights below 20k feet

4,163 ❌ (8,838)

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

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

18.30

Fridays between 17:00 and 18:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

16.40

Fridays between 18:00 and 19:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

15.60

Fridays between 12:00 and 13:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

15.40

Fridays between 20:00 and 21:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

14.70

Fridays between 21:00 and 22:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

14.20

Fridays between 14:00 and 15:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

14.10

Fridays between 19:00 and 20:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

14.00

Thursdays between 14:00 and 15:00 - 4 time(s) in 4 weeks. Approx:8 flight events.

13.60

Thursdays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:7 flight events.