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FILE - In this May 27, 2016, file photo, motorists guide their vehicles northbound on Interstate 25 to mark the start of the Memorial Day weekend near Firestone, Colo.  AAA reports that in Tennessee, more than 927,000 people will travel during the holiday weekend. (AP Photo/David Zalubowski, File)

FILE - In this May 27, 2016, file photo, motorists guide their vehicles northbound on Interstate 25 to mark the start of the Memorial Day weekend near Firestone, Colo. AAA reports that in Tennessee, more than 927,000 people will travel during the holiday weekend. (AP Photo/David Zalubowski, File)