Thankyou, but I am not wise! Aviation management is controlling your stupidity so nobody susses you out effectively! I can achieve that 90% of the time- as long as I get the impression most people are below that score, then I'm not too unhappy!
I think in a summer European or US high density airport environment, average arrival figures of 2.7, especially in summer, need urgent looking at. But there may be a good reason. The graph of arrival fuel amounts versus numbers of aircraft should be starting from zero and going up to a peak and down to zero again in a nice pretty sine-type wave. the idea is to keep the beginning of the wave to the right of the zero point (origin)-ie EVERY single arrival with some fuel! The question is how far to the right to have that curve start, and where the peak should be. If part of the reason for the high average arrival figure is because of tankering for economy reasons, that may explain why it is so high.