Denver's airport could get a $1 billion makeover that would include moving security checkpoints out of the main terminal's vast Great Hall and adding a passenger train station.

Airport manager Kim Day gave City Council members a briefing Wednesday on preliminary plans for the city-owned airport.

Day says security screening could be moved to the areas just outside the Great Hall where ticket counters and luggage carousels are now located. That would allow passengers waiting to change planes to come into the main terminal without going through security.

The train station would serve a rail line planned to link the airport to downtown Denver.

Improvements would be paid for out of the airport's terminal redevelopment plans.

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