The city were 2.146 million vehicles in Beijing, with 1.54 million private ones, among which 9.92 million were cars. As one of the biggest railroad transportation hubs in China, Beijing is connected with most of the large and medium cites of the country by direct trains, railroad traffic in 2005 reached 60.384 billion people/times. Beijing was also an air traffic center with over 200 international routes leading to major cities around the world. Civil aviation totaled over 30 million people/times. Beijing International Airport, with its newly opened terminal, became one of the busiest air traffic centers in Asia.