FILE - Motorists head southbound in the local and express lanes on Interstates 90-94 in slow and thickening traffic as a CTA train enters a station on the first day of the Fourth of July holiday weekend, July 1, 2022, in Chicago. Millions of Americans are preparing to get out of town sometime in the coming Fourth of July holiday week, which will likely mean busy roads as well as packed airports and train stations. (AP Photo/Charles Rex Arbogast, File)