Assessment ScoreCard – 31 Day

Aircraft Traffic Assessment: 31 Day Scorecard



The symbol indicates the measure is better than the average when compared with other assessed
UK postcodes. The ❌ represents the opposite. Assessed averages are shown in brackets.

See: for a full explanation about the Assessment scorecard.

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

05/09/2024 07:16:34

UK Postcode

STOCK , ESSEX , CM4 9BD

Baseline geo-coordinates

51.6648 , 0.446889

Survey type

31 days prior to: 03-Sep-2024 @00:15:00

Assessment band

HIGH

Assessment actual value

16.63

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: 16.0 --> Upper: 20.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

8,484 / 273.7 / 16.1 (3,212)

Flights above 26k feet.

2,081 / 67.1 / 3.9 (756)

Flights between 16k and 26k feet

384 / 12.4 / 0.7 (350)

Flights between 13k and 15k feet

1,037 / 33.5 / 2.0 (178)

Flights between 7k and 12k feet

4,786 / 154.4 / 9.1 (553)

Flights between 6k and 7k feet

50 / 1.6 / 0.1

Flights between 5k and 6k feet

33 / 1.1 / 0.1

Flights between 4k and 5k feet

25 / 0.8 / 0.0

Flights between 3k and 4k feet

5 / 0.2 / 0.0

Flights below 3k feet

83 / 2.7 / 0.2

4 or more flights per hour

547 / 17.6 (206)

9 or more flights per hour

404 / 13.0 (78)

Departures between 1.5k and 15k feet

156 / 5.0 / 0.3

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

43 / 1.4

Between 1am and 2am

27 / 0.9

Between 2am and 3am

20 / 0.6

Between 3am and 4am

16 / 0.5

Between 4am and 5am

16 / 0.5

Between 5am and 6am

94 / 3.0

Between 6am and 7am

311 / 10.0

Between 7am and 8am

427 / 13.8

Between 8am and 9pm

7,145 / 230.5 / 16.5

Between 10pm and 11pm

243 / 7.8

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

20

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

48 (44)

Minimum avg. distance in miles

0.31

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

198.0 / 97.0 / 10.4 (68)

Flight holding stack identified?

No

Altitude for all flights

17,201 (17,511)

Altitude of departures between 1.5k and 15k feet

7,292 (8,502)

Altitude of flights below 20k feet

11,611

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

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

25.80

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

23.00

Sundays between 18:00 and 19:00 - 4 time(s) in 4 weeks. Approx:17 flight events.

22.90

Mondays between 18:00 and 19:00 - 4 time(s) in 4 weeks. Approx:17 flight events.

21.80

Sundays between 19:00 and 20:00 - 4 time(s) in 4 weeks. Approx:16 flight events.

20.50

Mondays between 19:00 and 20:00 - 4 time(s) in 4 weeks. Approx:15 flight events.

20.20

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

19.60

Fridays between 19:00 and 20:00 - 4 time(s) in 4 weeks. Approx:15 flight events.

19.30

Sundays between 17:00 and 18:00 - 4 time(s) in 4 weeks. Approx:15 flight events.

Our scorecard is designed to provide a greater understanding how the assessment was reached for your selected UK post code. To enable you to validate our assessment we also provide up to 10 occurrences when we believe the disruption will be at its highest.

For those that would like to perform their own analysis we can also provide the low level flight data that includes the length of time a plane existed inside your select airspace bubble.



Evidence by associated Airport – indicative only: STOCK

UK Airport Count of Flights Percentage of Total
LONDON HEATHROW AIRPORT578868.3
TRANSATLANTIC FLIGHT?90710.7
BIRMINGHAM INTERNATIONAL AIRPORT4074.8
LONDON CITY AIRPORT1461.7
LONDON LUTON AIRPORT1471.7
EDINBURGH AIRPORT2352.8
EAST MIDLANDS AIRPORT1391.6
BRISTOL AIRPORT1571.9
MANCHESTER AIRPORT1561.8