Assessment ScoreCard – 31 Day

Assessment Scorecard headlines

All Assessments are based on an ambient background noise of between 30 and 40 dBs i.e. a quiet residential area. Typically the noise from an overflying aircraft is between 50-65 dBs. If your property is located near to a busy road i.e. 70-75 dBs, the noise impact from aircraft will be significantly reduced, whilst the road remains busy.

Note: Overflying aircraft noise typically has a duration of 30-50 seconds, the higher the plane the longer the duration. Whereas the average car, bus or HGV the duration is only a few seconds.

Date of survey

28/08/2025 06:53:17

UK Postcode Area

OXTED, SURREY, RH8 0EX

Baseline geo-coordinates

51.2561 , 0.006528

Survey type

31 days prior to: 27-Aug-2025 @23:24:10

Assessment band

INTERMITTENT

Assessment actual value

5.91

Assessment description

Will encounter some day-time noise disturbances that are caused by the volumes of planes overflying Also expect a possible visual impact too.

Band range

Lower: 4.0 --> Upper: 7.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

1,583 / 51.1 / 3.0 ✔

Flights above 26k feet.

431 / 13.9 / 0.8 ✔

Flights between 16k and 26k feet

115 / 3.7 / 0.2 ✔

Flights between 13k and 15k feet

100 / 3.2 / 0.2 ✔

Flights between 7k and 12k feet

768 / 24.8 / 1.5 ❌ (549)

Flights between 6k and 7k feet

22 / 0.7 / 0.0 ✔

Flights between 5k and 6k feet

17 / 0.5 / 0.0 ✔

Flights between 4k and 5k feet

4 / 0.1 / 0.0 ✔

Flights between 3k and 4k feet

1 / 0.0 / 0.0 ✔

Flights below 3k feet

125 / 4.0 / 0.2 ✔

4 or more flights per hour

113 / 3.6 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

797 / 25.7 / 1.5 ❌ (404)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

14 / 0.5

Between 1am and 2am

9 / 0.3

Between 2am and 3am

1 / 0.0

Between 3am and 4am

4 / 0.1

Between 4am and 5am

5 / 0.2

Between 5am and 6am

20 / 0.6

Between 6am and 7am

60 / 1.9

Between 7am and 8am

81 / 2.6

Between 8am and 9pm

1,220 / 39.4 / 2.8

Between 10pm and 11pm

84 / 2.7

Between 11pm and Midnight

38 / 1.2

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

18 ✔

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

51 ❌ (43)

Minimum avg. distance in miles

0.51

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

26.0 / 14.0 / 1.4 ✔

Flight holding stack identified?

No

Altitude for all flights

17,452 ❌ (17,668)

Altitude of departures between 1.5k and 15k feet

10,435 ✔

Altitude of flights below 20k feet

10,389 ✔

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

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

7.38

Wednesdays between 21:00 and 22:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

5.38

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

5.25

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

5.00

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

4.88

Fridays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

3.50

Sundays between 12:00 and 13:00 - 4 time(s) in 4 weeks. Approx:3 flight events.

9.00

Thursdays between 9:00 and 10:00- 3 time(s) in 4 weeks. Approx:6 flight events.

7.00

Thursdays between 20:00 and 21:00 - 3 time(s) in 4 weeks. Approx:5 flight events.

6.50

Tuesdays between 22:00 and 23:00 - 3 time(s) in 4 weeks. Approx:5 flight events.