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In a study, San Francisco tops the list for busiest travel cities in the U.S. the day before Thanksgiving; Los Angeles, Seattle and San Diego round off the top four.
Today it will take about 44 percent longer to leave town than it would on a typical Wednesday. The study suggests traffic will be heaviest noon until 6 p.m., with peak congestion from 2:30 p.m. to 4:30 p.m.
Study: SF, Oakland among worst traffic bottlenecks in U.S.
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How to travel like a pro this Thanksgiving