Miami International Airport installed a $324 million high-tech baggage handling system. The system is located in the airport’s south and central terminals — doubling baggage screening and delivery efficiency at the airport.

The system has nine miles of belts, plus robots that move bags to security gates for inspection. There’s also a sophisticated explosives detection system.

“This new system improves the efficiency of the checked bag system and reduces the risk of injury to TSA officers who no longer have to lift, push, pull or carry bags while doing those checks,” said Daniel Ronan, federal security director, Transportation Security Administration.

Miami is the first large U.S. airport to use an automated baggage screening system.

“We inspect 100 percent of all the bags that are checked,” said Lester Sola, director, MIA. “What this technology allows us to do is do it quicker at a higher rate of accuracy.”

The system went online in July and can process 7,000 bags per hour. Eighteen airlines currently use the system with an additional 30 airlines expected to be added by mid 2020.

MIA is planning to spend more than $5 billion in the next five to 15 years on various projects, including new hotels, terminal redevelopment and parking.