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

13/02/2025 12:40:06

UK Postcode

WOKING-CENTRAL , SURREY , GU21 5BH

Baseline geo-coordinates

51.3207 , -0.554201

Survey type

31 days prior to: 31-Aug-2024 @23:22:34

Assessment band

FREQUENT

Assessment actual value

15.79

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

6,758 / 218.0 / 12.8 ❌ (3,197)

Flights above 26k feet.

1,383 / 44.6 / 2.6 ❌ (760)

Flights between 16k and 26k feet

322 / 10.4 / 0.6 ✔

Flights between 13k and 15k feet

278 / 9.0 / 0.5 ❌ (178)

Flights between 7k and 12k feet

3,247 / 104.7 / 6.2 ❌ (547)

Flights between 6k and 7k feet

231 / 7.5 / 0.4 ❌ (160)

Flights between 5k and 6k feet

38 / 1.2 / 0.1 ✔

Flights between 4k and 5k feet

3 / 0.1 / 0.0 ✔

Flights between 3k and 4k feet

12 / 0.4 / 0.0 ✔

Flights below 3k feet

1,244 / 40.1 / 2.4 ❌ (566)

4 or more flights per hour

525 / 16.9 ❌ (204)

9 or more flights per hour

317 / 10.2 ❌ (77)

Departures between 1.5k and 15k feet

1,032 / 33.3 / 2.0 ❌ (407)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

17 / 0.5

Between 1am and 2am

4 / 0.1

Between 2am and 3am

6 / 0.2

Between 3am and 4am

3 / 0.1

Between 4am and 5am

23 / 0.7

Between 5am and 6am

143 / 4.6

Between 6am and 7am

407 / 13.1

Between 7am and 8am

424 / 13.7

Between 8am and 9pm

5,366 / 173.1 / 12.4

Between 10pm and 11pm

170 / 5.5

Between 11pm and Midnight

84 / 2.7

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

36 ❌ (30)

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

44 ❌ (44)

Minimum avg. distance in miles

0.60

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

165.0 / 73.0 / 8.7 ❌ (68)

Flight holding stack identified?

Yes ❌

Altitude for all flights

13,824 ❌ (17,612)

Altitude of departures between 1.5k and 15k feet

8,175 ❌ (8,431)

Altitude of flights below 20k feet

7,977 ❌ (8,792)

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

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

23.40

Thursdays between 8:00 and 9:00- 4 time(s) in 4 weeks. Approx:16 flight events.

20.70

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

20.40

Fridays between 16:00 and 17:00 - 4 time(s) in 4 weeks. Approx:12 flight events.

20.30

Wednesdays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:13 flight events.

20.00

Fridays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:13 flight events.

19.70

Wednesdays between 13:00 and 14:00 - 4 time(s) in 4 weeks. Approx:12 flight events.

19.50

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