Originally Posted by
corporate-wage-slave
This was an experiment, blue tags for overheads rather than yellow for under the seat. NCL I know was on that experiment, though NCL departures were not usually too badly affected by this issue on the whole. I've not seen anything about whether that experiment is still going on.
Rather than doing that, they should allow only one item on board, either a suitcase that adheres to dimensions requirements or a rucksack or such - not both.
People nowadays bring everything but their kitchen sink and I hardly see them challanged.
I flew Jetstar not that long ago, only one item allowed, every one was weighed. Overweight ones were charged with portable terminals and they also took cash. And guess what? it was all smooth and boarding was on time. I wish BA did this.
EDIT: that was Jetstar Japan, not Australia