Assessment ScoreCard – Full

Aircraft Traffic Assessment: Full Scorecard



The symbol indicates the measure is better than the average when compared with other assessed
UK postcodes. Averages are shown in brackets.

See: for a full explanation about the Assessment scorecard.

Summary

Date of survey

13/10/2020 11:48:44

Location

CHALFONT_ST_GILES , BUCKINGHAMSHIRE , HP8 4TJ

Baseline geo-coordinates

51.6571 , -0.569071

Survey type

Full. Based on 93 days activity over Mid Dec to Mid Jan, whole of April and August

Assessment band

FREQUENT

Assessment actual value

10.72

Assessment description

Sound equates to a "B" road or busy "C" road i.e. irregular traffic that will be noticeable at peak times which includes evenings and weekends. Location is on a secondary flight corridor or flight route or in a flight holding stack area. At times there will be multiple aircraft occurances within the same hour, typically 4. Some of the aircraft will be below 7000 feet.

Band range

Lower: 7.0 --> Upper: 12.0

Flight holding stack identified?

Yes

Count of Pass-by types

All flights below 26,000 feet

7,693 (7,300)

Flights below 20,000 feet

5,838 (5,555)

Flights between 7,000 and 12,000 feet

4,897 (1,700)

Flights below 7000 feet

372

4 or more flights per hour

748 (501)

9 or more flights per hour

175

Departures between 1,500 and 15,000 feet

256

Average occurances

Time in seconds an aircraft existed in the Airspace Bubble

26 (18)

Altitude for all flights

14,714 (17,449)

Altitude of departures between 1,500 and 15,000 feet

8,555 (9,289)

Altitude of flights below 20,000 feet

9,749

Number of disruptions per day

58 (57)

Percentage of Pass-bys that occur Out-Of-Hours and at Weekends

39

Distance from baseline in miles

0.67

Scale of regular disruption
(0 - low, 25+ high)

Period and Frequency

13.81

Monday @ 10:00 - WEEKLY

12.04

Thursday @ 10:00 - WEEKLY

11.38

Tuesday @ 10:00 - WEEKLY

11.19

Tuesday @ 9:00 - WEEKLY

10.65

Monday @ 8:00 - WEEKLY

7.54

Monday @ 12:00 - WEEKLY

6.27

Tuesday @ 7:00 - WEEKLY

12.11

Wednesday @ 9:00 - 9 time(s) in 13 weeks

10.33

Sunday @ 8:00 - 9 time(s) in 13 weeks

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.