It makes me so mad when immediately after touchdown the pilot says "Well folks, we got you here 2 minutes ahead of schedule" and I know that what with taxiing, bussing, etc. it will be another half hour before I set foot in the terminal building.

It seems common sense to me that for timetables, arrival times should refer to when the first pax (last pax? at least half the pax?) gets to the terminal building. How else can you calculate meaningful connection times?