Millions of travelers across the United States are undertaking journeys for Christmas, coinciding with the busiest day of the festive season’s travel period. Transportation agencies have issued advisories urging individuals to allocate additional time for their journeys and to verify their routes ahead of departure. This period typically sees heightened activity on roads, rail, and air travel routes, driven by holiday visits and family reunions. Authorities monitor transportation networks closely to manage volume and address congestion or delays, aiming to facilitate smooth transit during this peak period.