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ATM network performance: Brisbane

Airborne delay

The 75th percentile performance figures for airborne delay at Brisbane are indicated in Figure 7. September performance (1.2 minutes median and 4.1 minutes 75th percentile) did not meet the targets.  Compared to the same month last year there was an increase in the median (from 1.0 minutes) and the 75th percentile (from 3.8 minutes) of airborne delay.  The long-term trend for airborne delay at Brisbane is downwards. However, the 24-month trend is flat.

Figure 7: Brisbane airborne delay 75th percentile (last 24 months)

Click image to enlarge

Notable events

The following commentary describes the most significant airborne delay events during September in Brisbane:

03 September (1800-1900 local) – Delay 4.8 minutes

  • Concentration of demand due to late and non‑compliant flights, and medical flights during a busy period.

05 September (1800-1900 local) – Delay 6.7 minutes

  • Concentration of demand due to late non‑compliant and exempt flights during a busy period.

16 September (1800-1900 local) – Delay 5.0 minutes

  • Concentration of demand due to late international arrivals during a busy period.

26 September (1700-1800 local) – Delay 6.3 minutes

  • Concentration of demand due to late non‑compliant and exempt flights during a busy period.

29 September (1800-1900 local) – Delay 9.3 minutes

  • Decrease capacity due to military aircraft displays as part of Riverfire event.
    • No arrivals for 34 minutes.

30 September (1800-1900 local) – Delay 7.2 minutes

  • Decreased capacity due to unforecast thunderstorms in the morning.
    • No arrivals for 54 minutes.