Airservices is Australia's air navigation service provider - we provide air traffic control, aviation rescue and fire fighting and air navigation services.

ATM network performance: Melbourne

Airborne delay

The 75th percentile performance figures for airborne delay at Melbourne are indicated in
Figure 6. December performance for the median (1.5 minutes) and the 75th percentile (5.4 minutes) did not meet the targets. Compared to the same month last year, there was an increase in the airborne delay median performance (from 1.2 minutes) and 75th percentile performance (from 4.8 minutes).

The long‑term (48-month) and 24-month trends for airborne delay at Melbourne are upwards.

Figure 6: Melbourne airborne delay 75th percentile (last 24 months)

Click image to enlarge

Notable events

Day Local Time Delay

(minutes – 75th percentile)

Event Descriptions

(Contributing causes to increased delays)

02 December 16-19 7.4 Reduced capacity due to unfavourable wind conditions.
Single runway operations continued for longer than planned (tactical rates reduced).
03 December 15-16

&

18

7.1 Concentration of demand due to late non‑compliant flights during period of low rates (single runway operations).
07 December 10-11

&

16-19

11.2 Reduced capacity due to unfavourable wind conditions.
Single runway operations continued for longer than planned (tactical rates reduced).
09 December 18-19 6.9 Diversions north of Melbourne due to thunderstorms.
12 December 08

&

19-21

10.3 Reduced capacity in morning due to unfavourable wind conditions. Single runway operations commenced earlier than planned (tactical rates reduced).

 

Reduced capacity due to thunderstorms in evening. No arrivals for 18 minutes.

13 December 07-09

&

21-22

9.5 Concentration of demand due to off‑schedule internationals at the beginning of a low-capacity period (low cloud and rain).

 

Increased traffic due to diversions from thunderstorms in Sydney.

14 December 08-12

&

16-20

18.7 Reduced capacity due to thunderstorms in morning. Level 2 GDP Revision with rates reduced.

 

Reduced capacity due to thunderstorms in the afternoon and evening (tactical rates reduced). Level 2 GDP Revision.

20 December 18-20 4.5 Reduced capacity due to low cloud in the evening (tactical rates reduced). Increased traffic due to diversions from thunderstorms in Sydney.
21 December 07-12

&

18-21

15.7 Concentration of demand due to off‑schedule internationals at the beginning of a low-capacity period (low cloud).

 

Reduced capacity due to low cloud in the evening (tactical rates reduced).

22 December 07-08 4.6 Concentration of demand due to longer than anticipated flight times during the morning peak period.