PHOENIX — Nearly two million Arizonans are set to hit the road or take to the skies ahead of Thanksgiving. Tuesday and Wednesday are expected to be the busiest times to travel across the state. AAA said the holiday commute is expected to be the slowest between about noon and 7 p.m. both days. Nationwide, about 82 million people are expected to travel, which is two percent higher than last year. In Arizona, of the 1.7 million people travelling, about 1.5 million of those are driving.