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

09/02/2025 14:35:46

UK Postcode

LENHAM , KENT , ME17 2HG

Baseline geo-coordinates

51.236 , 0.71301

Survey type

31 days prior to: 01-Sep-2024 @00:21:00

Assessment band

INTERMITTENT

Assessment actual value

6.20

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

2,803 / 90.4 / 5.3 ✔

Flights above 26k feet.

1,246 / 40.2 / 2.4 ❌ (755)

Flights between 16k and 26k feet

931 / 30.0 / 1.8 ❌ (350)

Flights between 13k and 15k feet

242 / 7.8 / 0.5 ❌ (179)

Flights between 7k and 12k feet

192 / 6.2 / 0.4 ✔

Flights between 6k and 7k feet

32 / 1.0 / 0.1 ✔

Flights between 5k and 6k feet

57 / 1.8 / 0.1 ✔

Flights between 4k and 5k feet

6 / 0.2 / 0.0 ✔

Flights between 3k and 4k feet

8 / 0.3 / 0.0 ✔

Flights below 3k feet

89 / 2.9 / 0.2 ✔

4 or more flights per hour

173 / 5.6 ✔

9 or more flights per hour

3 / 0.1 ✔

Departures between 1.5k and 15k feet

269 / 8.7 / 0.5 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

18 / 0.6

Between 1am and 2am

14 / 0.5

Between 2am and 3am

13 / 0.4

Between 3am and 4am

5 / 0.2

Between 4am and 5am

7 / 0.2

Between 5am and 6am

26 / 0.8

Between 6am and 7am

102 / 3.3

Between 7am and 8am

158 / 5.1

Between 8am and 9pm

2,242 / 72.3 / 5.2

Between 10pm and 11pm

112 / 3.6

Between 11pm and Midnight

71 / 2.3

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

17 ✔

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

49 ❌ (43)

Minimum avg. distance in miles

0.49

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

31.0 / 15.0 / 1.6 ✔

Flight holding stack identified?

No

Altitude for all flights

24,414 ✔

Altitude of departures between 1.5k and 15k feet

11,902 ✔

Altitude of flights below 20k feet

14,064 ✔

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

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

5.20

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

10.00

Sundays between 16:00 and 17:00 - 4 time(s) in 4 weeks. Approx:7 flight events.

7.88

Fridays between 15:00 and 16:00 - 4 time(s) in 4 weeks. Approx:6 flight events.

7.75

Saturdays between 10:00 and 11:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

6.88

Thursdays between 13:00 and 14:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

6.75

Fridays between 13:00 and 14:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

6.13

Saturdays between 18:00 and 19:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

5.88

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