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ATM network performance: Brisbane

Airborne delay

The 75th percentile performance figures for airborne delay at Brisbane are indicated in Figure 10. September performance did not meet the target for the median (1.3 minutes) or the 75th percentile (3.9 minutes). Compared to the same month last year, there was an increase in the airborne delay median performance (from 1.2 minutes) and a decrease in the 75th percentile (from 4.1 minutes).

brisbane-airborne-delay

Figure 10: Brisbane airborne delay 75th percentile (last 24 months)

Notable events

Table 6 describes the notable airborne delay events during September in Brisbane.

Day Local Time Delay

(minutes – 75th percentile)

Event Descriptions

(Contributing causes to increased delays)

5 September 19-20 4.3 No GDP. Period of planned single runway operations with winds.
10 September 18-19 6.8 Period of planned single runway operations with turbulence and uncertain wind direction.
17 September 17-19 5.3 Forecast thunderstorm. Concentration of demand due to off-schedule internationals and non-compliant flights.
26 September 19-20 4.0 Period of planned single runway operations. Concentration of demand due to off-schedule internationals and non-compliant flights.
28 September 16-17 3.0 Forecast thunderstorm. Riverfire displays. Concentration of demand due to off-schedule internationals and non-compliant flights.
30 September 08-09 6.3 Reduced visibility lowered tactical Rates longer than planned.

Table 6: Notable event descriptions for Brisbane.