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

09/01/2022 14:28:22

UK Postcode

BOWER-CHALKE , WILTSHIRE , SP5 5BX

Baseline geo-coordinates

51.0048 , -1.97782

Survey type

31 Day. Based on the 31 days prior to the survey date shown above.

Assessment band

MINIMAL

Assessment actual value

2.75

Assessment description

Sound equates to a quiet country lane i.e. irregular and low volume traffic. However, occasionally some of the flights could be below 7000 feet and could occur at evenings and weekends.

Band range

Lower: 0.0 --> Upper: 4.0

Volumes, Height bands, and Intensity.

For Assessment / Daily Avg. / Hourly Avg.

Count of ALL flights

73 / 2.4 / 0.1 ✔

Flights above 26k feet.

44 / 1.4 / 0.1 ✔

Flights between 16k and 26k feet

2 / 0.1 / 0.0 ✔

Flights between 13k and 15k feet

0 ✔

Flights between 7k and 12k feet

0 ✔

Flights between 6k and 7k feet

0 ✔

Flights between 5k and 6k feet

3 / 0.1 / 0.0 ✔

Flights between 4k and 5k feet

2 / 0.1 / 0.0 ✔

Flights between 3k and 4k feet

5 / 0.2 / 0.0 ✔

Flights below 3k feet

17 / 0.5 / 0.0 ✔

4 or more flights per hour

0 / 0.0 ✔

9 or more flights per hour

0 / 0.0 ✔

Departures between 1.5k and 15k feet

1 / 0.0 / 0.0 ✔

Time and Sleep Analysis

For Assessment / Daily Avg. / Hourly Avg.

0 AM

1 AM

2 AM

1 / 0.0

3 AM

4 AM

1 / 0.0

5 AM

2 / 0.1

6 AM

3 / 0.1

7 AM

5 / 0.2

8 AM to 9 PM

57 / 1.8 / 0.1

10 PM

11 PM

Other Noise Disturbance, Vibration and Emissions factors

Time in seconds an aircraft existed in the airspace bubble

24 ❌ (22)

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

29 ✔

Minimum avg. distance in miles

0.47

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

0.0 / 0.0 / 0.0 ✔

Flight holding stack identified?

No

Altitude for all flights

23,773 ✔

Altitude of departures between 1.5k and 15k feet

3,165 ❌ (7,653)

Altitude of flights below 20k feet

2,956 ❌ (7,553)

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

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

3.00

Wednesday @ 14:00 - 1 time(s) in 4 weeks. Approx:2 flight events.

2.50

Saturday @ 15:00 - 1 time(s) in 4 weeks. Approx:2 flight events.