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

07/08/2024 07:57:05

UK Postcode

TONBRIDGE-SOUTH , KENT , TN9 2QZ

Baseline geo-coordinates

51.1846 , 0.264298

Survey type

31 days prior to: 05-Aug-2024 @23:59:55

Assessment band

FREQUENT

Assessment actual value

12.83

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

5,228 / 168.6 / 9.9 ❌ (3,197)

Flights above 26k feet.

614 / 19.8 / 1.2 ✔

Flights between 16k and 26k feet

177 / 5.7 / 0.3 ✔

Flights between 13k and 15k feet

1,354 / 43.7 / 2.6 ❌ (178)

Flights between 7k and 12k feet

2,366 / 76.3 / 4.5 ❌ (547)

Flights between 6k and 7k feet

33 / 1.1 / 0.1 ✔

Flights between 5k and 6k feet

167 / 5.4 / 0.3 ✔

Flights between 4k and 5k feet

271 / 8.7 / 0.5 ❌ (266)

Flights between 3k and 4k feet

88 / 2.8 / 0.2 ✔

Flights below 3k feet

158 / 5.1 / 0.3 ✔

4 or more flights per hour

536 / 17.3 ❌ (204)

9 or more flights per hour

212 / 6.8 ❌ (77)

Departures between 1.5k and 15k feet

1,716 / 55.4 / 3.3 ❌ (407)

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

61 / 2.0

Between 1am and 2am

27 / 0.9

Between 2am and 3am

29 / 0.9

Between 3am and 4am

16 / 0.5

Between 4am and 5am

70 / 2.3

Between 5am and 6am

85 / 2.7

Between 6am and 7am

221 / 7.1

Between 7am and 8am

276 / 8.9

Between 8am and 9pm

4,089 / 131.9 / 9.4

Between 10pm and 11pm

235 / 7.6

Between 11pm and Midnight

106 / 3.4

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

19 ✔

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

53 ❌ (44)

Minimum avg. distance in miles

0.36

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

143.0 / 77.0 / 7.5 ❌ (68)

Flight holding stack identified?

Yes ❌

Altitude for all flights

13,642 ❌ (17,611)

Altitude of departures between 1.5k and 15k feet

11,570 ✔

Altitude of flights below 20k feet

11,140 ✔

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

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

18.60

Saturdays between 14:00 and 15:00 - 4 time(s) in 4 weeks. Approx:13 flight events.

18.40

Mondays between 16:00 and 17:00 - 4 time(s) in 4 weeks. Approx:13 flight events.

17.90

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

17.70

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

17.40

Saturdays between 15:00 and 16:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

14.40

Fridays between 20:00 and 21:00 - 4 time(s) in 4 weeks. Approx:11 flight events.

14.30

Sundays between 8:00 and 9:00- 4 time(s) in 4 weeks. Approx:10 flight events.

14.10

Fridays between 7:00 and 8:00- 4 time(s) in 4 weeks. Approx:10 flight events.

13.70

Saturdays between 7:00 and 8:00- 4 time(s) in 4 weeks. Approx:10 flight events.