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

10/02/2025 23:09:29

UK Postcode

ROMSEY , HAMPSHIRE , SO51 8GF

Baseline geo-coordinates

50.9878 , -1.49599

Survey type

31 days prior to: 31-Aug-2024 @22:59:25

Assessment band

INTERMITTENT

Assessment actual value

5.07

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

1,178 / 38.0 / 2.2

Flights above 26k feet.

380 / 12.3 / 0.7

Flights between 16k and 26k feet

621 / 20.0 / 1.2 (350)

Flights between 13k and 15k feet

76 / 2.5 / 0.1

Flights between 7k and 12k feet

13 / 0.4 / 0.0

Flights between 6k and 7k feet

3 / 0.1 / 0.0

Flights between 5k and 6k feet

9 / 0.3 / 0.0

Flights between 4k and 5k feet

13 / 0.4 / 0.0

Flights between 3k and 4k feet

13 / 0.4 / 0.0

Flights below 3k feet

50 / 1.6 / 0.1

4 or more flights per hour

56 / 1.8

9 or more flights per hour

0 / 0.0

Departures between 1.5k and 15k feet

34 / 1.1 / 0.1

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

1 / 0.0

Between 1am and 2am

2 / 0.1

Between 2am and 3am

2 / 0.1

Between 3am and 4am

2 / 0.1

Between 4am and 5am

1 / 0.0

Between 5am and 6am

1 / 0.0

Between 6am and 7am

33 / 1.1

Between 7am and 8am

69 / 2.2

Between 8am and 9pm

955 / 30.8 / 2.2

Between 10pm and 11pm

74 / 2.4

Between 11pm and Midnight

23 / 0.7

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

39

Minimum avg. distance in miles

0.48

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

12.0 / 5.0 / 0.6

Flight holding stack identified?

No

Altitude for all flights

22,018

Altitude of departures between 1.5k and 15k feet

12,696

Altitude of flights below 20k feet

15,529

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

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

6.63

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

6.38

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

3.75

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

3.63

Wednesdays between 16:00 and 17:00 - 4 time(s) in 4 weeks. Approx:2 flight events.

5.33

Mondays between 11:00 and 12:00 - 3 time(s) in 4 weeks. Approx:4 flight events.

5.00

Fridays between 11:00 and 12:00 - 3 time(s) in 4 weeks. Approx:4 flight events.

4.83

Saturdays between 11:00 and 12:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

4.00

Saturdays between 22:00 and 23:00 - 3 time(s) in 4 weeks. Approx:3 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: ROMSEY

UK Airport Count of Flights Percentage of Total
LONDON HEATHROW AIRPORT45638.7
LONDON GATWICK AIRPORT20017.0
LONDON LUTON AIRPORT917.7
TRANSATLANTIC FLIGHT?837.0
BIRMINGHAM INTERNATIONAL AIRPORT685.8
LONDON STANSTED AIRPORT625.3
EAST MIDLANDS AIRPORT474.0
MINOR UK AIRPORT?312.6
MANCHESTER AIRPORT242.0
FARNBOROUGH AIRPORT221.9
BOURNEMOUTH AIRPORT221.9