A new study ranks Boston Logan International Airport fourth in the U.S. for the most runway close calls, tied with Chicago O'Hare International Airport.

The research was done by a travel credit card website called Upgraded Points . It uses numbers straight from the Federal Aviation Administration's online data tracking tools.

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We took a closer look at why the numbers here are so high, and what Massport says they're doing about it.

"I'm a little surprised," said Joe Meyer, a frequent Logan flyer. "We've never had any issues coming in and out of Logan over the years."

The research cited by Upgraded Points focused on runway incursions -- when a plane, vehicle or even a person ends up on a runway when they're not su

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