As the Fourth of July approaches, travel numbers are expected to reach historic highs, with nearly 72.2 million Americans projected to travel. Airports and roads will see significant congestion, particularly with heavy traffic anticipated in popular destinations like Colorado and Massachusetts. The TSA is preparing for over 18.5 million air travelers, while heavy traffic is expected as travelers hit the roads on the busiest days, especially Wednesday. Travel experts are advising early departures to avoid delays, and caution is urged as families embark on their holiday celebrations amid a surge in rental car and airline bookings. Officials highlight that construction projects in Colorado will be paused to accommodate the increased flow of travelers, while the AAA provides insights on the best and worst times to travel. Weather conditions may also influence travel plans, adding another variable to this busy holiday weekend.