I am not sure what airbrake is comparing LTN with. Heathrow certainly is little better with aircraft switching from an outside to inner taxiway system- granted the new terminals don't have cul de sacs but T3 still does big time with often a wait after arrival for a stand if there is any slippage in schedules. Gatwick North and holding at west end of 26 there an be a 'mare as well. And building new airports-out of the question- we can't even get a third runway at LHR!