what sort of joking about the BIS (although, if I take 200,000 trips to ORD and with each there is 5 miles of extra taxi that will bump from 1MM to 2MM.....)
but it is just sort of interesting since I would guess that the fuel costs per mile and ground time are not trivial
my flight "landed" at 7:48am - docked at F at 8:05 am and my next flight at the far end of B started boarding at 8am........ these drive arounds can add up.....