FILE - In this Tuesday, Nov. 22, 2011, file photo, cars fill the highway two days before Thanksgiving, in San Diego. The number of Americans hitting the road for Thanksgiving in 2012,

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FILE - In this Tuesday, Nov. 22, 2011, file photo, cars fill the highway two days before Thanksgiving, in San Diego. The number of Americans hitting the road for Thanksgiving in 2012, is expected to increase slightly from a year ago, according to AAA’s annual Thanksgiving travel forecast released Tuesday, Nov. 13, 2012. But they’ll take shorter trips to save on gas and other costs as household budgets remain tight. (AP Photo/Gregory Bull, File) less