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

27/10/2020 13:06:47

Location

NORTHWOOD , MIDDLESEX , HA6 2UN

Baseline geo-coordinates

51.6119 , -0.429032

Survey type

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

Assessment band

VERY HIGH

Assessment actual value

24.30

Assessment description

Sound equates to a Motorway i.e. very regular traffic that will be noticeable at peak times which includes evenings and weekends. Location is on a flight path or primary flight corridor and subject to Arrivals and/or Departures. At times there will be multiple aircraft occurances within the same hour, typically between 15 to 20.

Band range

Lower: 20.0 --> Upper: 30.0

Flight holding stack identified?

No

Count of Pass-by types

All flights below 26,000 feet

9,575 (7,300)

Flights below 20,000 feet

7,397 (5,555)

Flights between 7,000 and 12,000 feet

6,290 (1,700)

Flights below 7000 feet

3,020 (2,902)

4 or more flights per hour

553 (501)

9 or more flights per hour

369 (199)

Departures between 1,500 and 15,000 feet

76

Average occurances

Time in seconds an aircraft existed in the Airspace Bubble

19 (18)

Altitude for all flights

13,419 (17,449)

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

8,997 (9,289)

Altitude of flights below 20,000 feet

7,747 (9,381)

Number of disruptions per day

73 (57)

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

49 (46)

Distance from baseline in miles

0.67

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

Period and Frequency

19.39

Monday @ 19:00 - 9 time(s) in 13 weeks

19.28

Monday @ 18:00 - 9 time(s) in 13 weeks

15.11

Thursday @ 18:00 - 9 time(s) in 13 weeks

13.33

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

10.89

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

10.61

Tuesday @ 10:00 - 9 time(s) in 13 weeks

9.56

Sunday @ 16:00 - 9 time(s) in 13 weeks

20.06

Saturday @ 15:00 - 8 time(s) in 13 weeks

19.06

Monday @ 11:00 - 8 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.