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

02/10/2025 17:20:33

UK Postcode Area

BRIGHTON-MARINA, EAST SUSSEX, BN2 5WB

Baseline geo-coordinates

50.8132 , -0.103647

Survey type

31 days prior to: 01-Oct-2025 @21:15:05

Assessment band

INTERMITTENT

Assessment actual value

5.08

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

967 / 31.2 / 1.8 ✔

Flights above 26k feet.

374 / 12.1 / 0.7 ✔

Flights between 16k and 26k feet

401 / 12.9 / 0.8 ❌ (355)

Flights between 13k and 15k feet

43 / 1.4 / 0.1 ✔

Flights between 7k and 12k feet

47 / 1.5 / 0.1 ✔

Flights between 6k and 7k feet

1 / 0.0 / 0.0 ✔

Flights between 5k and 6k feet

5 / 0.2 / 0.0 ✔

Flights between 4k and 5k feet

9 / 0.3 / 0.0 ✔

Flights between 3k and 4k feet

8 / 0.3 / 0.0 ✔

Flights below 3k feet

79 / 2.5 / 0.1 ✔

4 or more flights per hour

19 / 0.6 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

46 / 1.5 / 0.1 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

3 / 0.1

Between 1am and 2am

4 / 0.1

Between 2am and 3am

1 / 0.0

Between 3am and 4am

2 / 0.1

Between 4am and 5am

Between 5am and 6am

8 / 0.3

Between 6am and 7am

55 / 1.8

Between 7am and 8am

81 / 2.6

Between 8am and 9pm

779 / 25.1 / 1.8

Between 10pm and 11pm

18 / 0.6

Between 11pm and Midnight

6 / 0.2

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

29 ✔

Minimum avg. distance in miles

0.46

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

5.0 / 1.0 / 0.3 ✔

Flight holding stack identified?

No

Altitude for all flights

23,214 ✔

Altitude of departures between 1.5k and 15k feet

10,866 ✔

Altitude of flights below 20k feet

12,674 ✔

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

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

4.83

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

3.83

Fridays between 14:00 and 15:00 - 3 time(s) in 4 weeks. Approx:3 flight events.

6.25

Fridays between 11:00 and 12:00 - 2 time(s) in 4 weeks. Approx:4 flight events.

5.25

Fridays between 9:00 and 10:00- 2 time(s) in 4 weeks. Approx:4 flight events.

4.50

Tuesdays between 17:00 and 18:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.50

Saturdays between 11:00 and 12:00 - 2 time(s) in 4 weeks. Approx:3 flight events.

3.00

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

2.75

Mondays between 12:00 and 13:00 - 2 time(s) in 4 weeks. Approx:2 flight events.