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

20/09/2024 20:22:12

UK Postcode

BARFORD-0923-2M , SURREY , GU10 2NY

Baseline geo-coordinates

51.1316 , -0.774914

Survey type

31 days prior to: 30-Sep-2023 @23:09:31

Assessment band

FREQUENT

Assessment actual value

14.05

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

8,457 / 272.8 / 16.0 ❌ (3,220)

Flights above 26k feet.

4,074 / 131.4 / 7.7 ❌ (755)

Flights between 16k and 26k feet

464 / 15.0 / 0.9 ❌ (350)

Flights between 13k and 15k feet

683 / 22.0 / 1.3 ❌ (179)

Flights between 7k and 12k feet

2,268 / 73.2 / 4.3 ❌ (547)

Flights between 6k and 7k feet

27 / 0.9 / 0.1 ✔

Flights between 5k and 6k feet

37 / 1.2 / 0.1 ✔

Flights between 4k and 5k feet

388 / 12.5 / 0.7 ❌ (274)

Flights between 3k and 4k feet

381 / 12.3 / 0.7 ❌ (191)

Flights below 3k feet

135 / 4.4 / 0.3 ✔

4 or more flights per hour

466 / 15.0 ❌ (206)

9 or more flights per hour

214 / 6.9 ❌ (78)

Departures between 1.5k and 15k feet

1,223 / 39.5 / 2.3 ❌ (399)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

35 / 1.1

Between 1am and 2am

27 / 0.9

Between 2am and 3am

19 / 0.6

Between 3am and 4am

7 / 0.2

Between 4am and 5am

8 / 0.3

Between 5am and 6am

120 / 3.9

Between 6am and 7am

416 / 13.4

Between 7am and 8am

610 / 19.7

Between 8am and 9pm

6,781 / 218.7 / 15.6

Between 10pm and 11pm

196 / 6.3

Between 11pm and Midnight

81 / 2.6

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

31 ❌ (30)

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

42 ✔

Minimum avg. distance in miles

0.84

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

129.0 / 55.0 / 6.8 ❌ (69)

Flight holding stack identified?

Yes ❌

Altitude for all flights

22,065 ✔

Altitude of departures between 1.5k and 15k feet

11,142 ✔

Altitude of flights below 20k feet

10,219 ✔

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

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

20.50

Saturdays between 11:00 and 12:00 - 4 time(s) in 4 weeks. Approx:14 flight events.

20.10

Wednesdays between 11:00 and 12:00 - 4 time(s) in 4 weeks. Approx:13 flight events.

19.50

Wednesdays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:14 flight events.

17.20

Wednesdays between 12:00 and 13:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

17.10

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

16.70

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

15.30

Wednesdays between 14:00 and 15:00 - 4 time(s) in 4 weeks. Approx:10 flight events.

15.10

Saturdays between 15:00 and 16:00 - 4 time(s) in 4 weeks. Approx:9 flight events.