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

21/05/2024 17:07:14

UK Postcode

EAST-GRINSTEAD-CENTRAL , WEST SUSSEX , RH19 1DJ

Baseline geo-coordinates

51.1282 , -0.016048

Survey type

31 days prior to: 20-May-2024 @06:34:22

Assessment band

INTERMITTENT

Assessment actual value

5.51

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

1,929 / 62.2 / 3.7 ✔

Flights above 26k feet.

537 / 17.3 / 1.0 ✔

Flights between 16k and 26k feet

1,302 / 42.0 / 2.5 ❌ (354)

Flights between 13k and 15k feet

24 / 0.8 / 0.0 ✔

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

1 / 0.0 / 0.0 ✔

Flights between 4k and 5k feet

9 / 0.3 / 0.0 ✔

Flights between 3k and 4k feet

2 / 0.1 / 0.0 ✔

Flights below 3k feet

6 / 0.2 / 0.0 ✔

4 or more flights per hour

132 / 4.3 ✔

9 or more flights per hour

1 / 0.0 ✔

Departures between 1.5k and 15k feet

55 / 1.8 / 0.1 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

Between Midnight and 1am

16 / 0.5

Between 1am and 2am

4 / 0.1

Between 2am and 3am

2 / 0.1

Between 3am and 4am

9 / 0.3

Between 4am and 5am

11 / 0.4

Between 5am and 6am

30 / 1.0

Between 6am and 7am

72 / 2.3

Between 7am and 8am

65 / 2.1

Between 8am and 9pm

1,543 / 49.8 / 3.6

Between 10pm and 11pm

87 / 2.8

Between 11pm and Midnight

67 / 2.2

Other Noise Disturbance, Vibration and Emissions factors

Avg time in seconds an aircraft remained in the airspace bubble

15 ✔

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

50 ❌ (43)

Minimum avg. distance in miles

0.39

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

14.0 / 7.0 / 0.7 ✔

Flight holding stack identified?

No

Altitude for all flights

23,774 ✔

Altitude of departures between 1.5k and 15k feet

10,412 ✔

Altitude of flights below 20k feet

19,053 ✔

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

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

6.50

Sundays between 16:00 and 17:00 - 4 time(s) in 4 weeks. Approx:5 flight events.

5.75

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

5.25

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

5.00

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

4.75

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

4.50

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