While flying out of LaGuardia Airport this morning, the boarding gate situation was very crowded with people lining up early and trying to board out of their assigned zones.
The gate agent announced that the flight was full and reminded passengers to carefully check their boarding zone. She added that anyone attempting to board ahead of their zone would be treated as voluntarily checking their carry-on bags.
That announcement immediately cleared up the congestion and caused people to step back and wait for their turn. It was an effective and simple way to manage boarding order, and many passengers appreciated the approach.