PITTSBURGH (KDKA) – As we kickoff Thanksgiving week today, AAA says it expects the second-highest number of travelers in a decade.

More than 55 million travelers are making plans to hit the road for holiday trips of 50 miles or more, which is the second-highest number since AAA started tracking in 2000.

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AAA says most people will be driving to their destination, with 5.8 million motorists in the Mid-Atlantic region of New Jersey, New York and Pennsylvania expected to travel by car.

Wednesday is predicted to be a traffic nightmare with “major delays” peaking on the day before Thanksgiving. According to AAA, trips could take four times longer as commuters are mixing with travelers.

While a small percentage of people are flying, the Pittsburgh International Airport says they expect more than 35,000 passengers a day between Nov. 21 and Dec. 5. In the Mid-Atlantic region, about 605,000 people will be flying.

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Allegheny County Airport Authority says the quietest travel days during that stretch are Thanksgiving Day and Black Friday.

For those who are driving, AAA says gas prices in Pennsylvania saw a 4 cent jump before Thanksgiving, and motorists could see even more increases as Thursday gets closer.

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Overall, AAA expects 6.6 million Mid-Atlantic travelers, which is more than a 3 percent increase from last year.