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ATM network performance: Perth

Airborne delay

The 75th percentile performance figures for airborne delay at Perth are indicated in Figure 11. September performance for the median (-0.3 minutes) and the 75th percentile (1.6 minutes) met the targets. Compared to the same month last year, there was no change in the airborne delay median performance (from -0.3 minutes) and an increase in 75th percentile performance (from 1.4 minutes).

The 24-month trend for airborne delay at Perth is upwards.


Figure 11: Perth airborne delay 75th percentile (last 24 months)

Notable events

Table 8 describes the notable airborne delay events during September in Perth.

Day Local Time Delay

(minutes – 75th percentile)

Event Descriptions

(Contributing causes to increased delays)

12 September 10-11 2.7 Concentration of demand due to non-compliant flights.

Table 8: Notable event descriptions for Perth.