Originally Posted by
C441
I'm guessing this15% figure is only the departure delays.
I wonder what the figure would be if the the inbound holding and speed reductions that subsequently lead to a further supposedly non-ATC delay were included.
That's an infrastructure delay. When 4 aircraft turn up at once that's 12 minutes of overall delay. 2, 4 and 6. Go and build 3 sets of parallels and away we go. Sequencing is not an ATC delay. It's scheduling and infrastructure.