US airline tests technology to shame queue jumpers

American Airlines is testing new technology at three US airports that will shame passengers who try to jump the queue.

The technology is being tested at Albuquerque International Sunport Airport in New Mexico, Tucson International Airport in Arizona and Ronald Reagan Washington National Airport in Virginia.

It alerts gate staff with an audible sound if a passenger tries to scan a ticket ahead of their assigned group.

"The new technology is designed to ensure customers receive the benefits of priority boarding with ease and helps improve the boarding experience by providing greater visibility into boarding progress for our team," American Airlines said in a statement.

American Airlines said that a gate agent politely lets the customer know they're unable to accept the pass and asks the customer to rejoin the line when their boarding group is called.

In some instances where a customer may be able to board out of order, like when travelling with a companion of higher status, the agent has a quick way to over ride the alert and accept the pass, American Airlines said in the statement.

Although the technology is just in a trial phase, the airline said it has been pleased with the results so far.