I've said it before (but not in this thread!) that published public transport times should be the time at which final boarding gate is closed, and not some internal operational time like when the thing actually starts to move. For train, the "boarding gate" is barriers closing or train joining at an open station.
I suspect I might be taking a minority view here!
Try boarding a plane at time of departure.....
Try telling late boarding BUS passengers that!
They generally say "That's lucky I managed to catch you". "No, you were late boarding, I should have departed earlier. Oh look, another later passenger running for this (even later now) bus"
