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

14/02/2025 16:13:54

UK Postcode

NUTFIELD , SURREY , RH1 5RP

Baseline geo-coordinates

51.2212 , -0.13215

Survey type

31 days prior to: 01-Sep-2024 @00:49:29

Assessment band

VERY HIGH

Assessment actual value

21.65

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: 20.0 --> Upper: 30.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

7,941 / 256.2 / 15.1 ❌ (3,153)

Flights above 26k feet.

776 / 25.0 / 1.5 ❌ (749)

Flights between 16k and 26k feet

1,455 / 46.9 / 2.8 ❌ (353)

Flights between 13k and 15k feet

34 / 1.1 / 0.1 ✔

Flights between 7k and 12k feet

2,080 / 67.1 / 3.9 ❌ (536)

Flights between 6k and 7k feet

942 / 30.4 / 1.8 ❌ (147)

Flights between 5k and 6k feet

1,102 / 35.5 / 2.1 ❌ (209)

Flights between 4k and 5k feet

682 / 22.0 / 1.3 ❌ (233)

Flights between 3k and 4k feet

407 / 13.1 / 0.8 ❌ (192)

Flights below 3k feet

463 / 14.9 / 0.9 ✔

4 or more flights per hour

554 / 17.9 ❌ (201)

9 or more flights per hour

440 / 14.2 ❌ (74)

Departures between 1.5k and 15k feet

4,607 / 148.6 / 8.7 ❌ (395)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

40 / 1.3

Between 1am and 2am

12 / 0.4

Between 2am and 3am

14 / 0.5

Between 3am and 4am

16 / 0.5

Between 4am and 5am

13 / 0.4

Between 5am and 6am

84 / 2.7

Between 6am and 7am

330 / 10.6

Between 7am and 8am

449 / 14.5

Between 8am and 9pm

6,370 / 205.5 / 14.7

Between 10pm and 11pm

240 / 7.7

Between 11pm and Midnight

132 / 4.3

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

39 ❌ (31)

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

47 ❌ (43)

Minimum avg. distance in miles

0.56

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

216.0 / 103.0 / 11.4 ❌ (67)

Flight holding stack identified?

No

Altitude for all flights

11,848 ❌ (17,557)

Altitude of departures between 1.5k and 15k feet

7,020 ❌ (8,452)

Altitude of flights below 20k feet

9,063 ✔

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

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

30.20

Thursdays between 12:00 and 13:00 - 4 time(s) in 4 weeks. Approx:17 flight events.

28.10

Fridays between 11:00 and 12:00 - 4 time(s) in 4 weeks. Approx:17 flight events.

28.00

Wednesdays between 11:00 and 12:00 - 4 time(s) in 4 weeks. Approx:16 flight events.

27.00

Saturdays between 15:00 and 16:00 - 4 time(s) in 4 weeks. Approx:16 flight events.

26.90

Thursdays between 9:00 and 10:00- 4 time(s) in 4 weeks. Approx:15 flight events.

26.50

Saturdays between 14:00 and 15:00 - 4 time(s) in 4 weeks. Approx:16 flight events.

26.40

Fridays between 13:00 and 14:00 - 4 time(s) in 4 weeks. Approx:16 flight events.

26.10

Saturdays between 18:00 and 19:00 - 4 time(s) in 4 weeks. Approx:16 flight events.

26.00

Fridays between 15:00 and 16:00 - 4 time(s) in 4 weeks. Approx:15 flight events.