Hartsfield-Jackson Atlanta International Airport (ATL) has long stood at the center of the American aviation system, consistently ranking as the busiest airport in the US when measured by passenger traffic, which remains the most widely used benchmark across the industry. Located just south of downtown Atlanta, the airport has evolved far beyond its regional origins into a sprawling, highly efficient hub that connects millions of passengers each year to destinations across the country and around the world, making it one of the most important transportation assets in North America.