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

26/11/2020 16:52:03

UK Postcode

STUDIO-CITY , LOS ANGELES - US , CA 91604

Baseline geo-coordinates

34.1413 , -118.388

Survey type

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

Assessment band

HIGH

Assessment actual value

16.90

Assessment description

Sound equates to a busy "A" road or Dual Carriageway i.e. regular traffic that will be noticeable at peak times which includes evenings and weekends. Location is on a primary flight corridor or busy flight route or in a flight holding stack area. At times there will be multiple flight occurrences within the same hour, typically between 4-15. Some of the flights will be below 7000 feet.

Band range

Lower: 16.0 --> Upper: 20.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

3,501 / 112.9 / 6.6 ❌ (1,509)

Flights above 26k feet.

78 / 2.5 / 0.1 ✔

Flights between 16k and 26k feet

9 / 0.3 / 0.0 ✔

Flights between 13k and 15k feet

1 / 0.0 / 0.0 ✔

Flights between 7k and 12k feet

263 / 8.5 / 0.5 ❌ (228)

Flights between 6k and 7k feet

204 / 6.6 / 0.4 ❌ (130)

Flights between 5k and 6k feet

308 / 9.9 / 0.6 ❌ (125)

Flights between 4k and 5k feet

578 / 18.6 / 1.1 ❌ (121)

Flights between 3k and 4k feet

1,301 / 42.0 / 2.5 ❌ (127)

Flights below 3k feet

759 / 24.5 / 1.4 ❌ (247)

4 or more flights per hour

391 / 12.6 ❌ (102)

9 or more flights per hour

154 / 5.0 ❌ (32)

Departures between 1.5k and 15k feet

2,359 / 76.1 / 4.5 ❌ (182)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

221 / 7.1

1 AM

241 / 7.8

2 AM

202 / 6.5

3 AM

167 / 5.4

4 AM

66 / 2.1

5 AM

43 / 1.4

6 AM

42 / 1.4

7 AM

19 / 0.6

8 AM to 9 PM

2,006 / 64.7 / 4.6

10 PM

255 / 8.2

11 PM

231 / 7.5

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

30 ❌ (21)

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

75 ❌ (41)

Minimum avg. distance in miles

0.68

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

107.0 / 80.0 / 5.6 ❌ (32)

Flight holding stack identified?

No

Altitude for all flights

4,784 ❌ (16,671)

Altitude of departures between 1.5k and 15k feet

4,256 ❌ (7,778)

Altitude of flights below 20k feet

4,081 ❌ (7,795)

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

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

23.50

Tuesday @ 15:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

22.00

Tuesday @ 21:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

21.60

Wednesday @ 15:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

20.50

Thursday @ 15:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

19.00

Wednesday @ 16:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

18.80

Wednesday @ 22:00 - 4 time(s) in 4 weeks. Approx:9 flight events.

17.10

Wednesday @ 18:00 - 4 time(s) in 4 weeks. Approx:8 flight events.