Chhatrapati Shivaji International Airport (CSIA) , formerly Sahar International Airport, is the primary international airport serving the Mumbai Metropolitan Area, India. It is the second busiest airport in the country in terms of passenger traffic and international traffic after Delhi, and was the 47th busiest airport in the world by passenger traffic in 2014 according to Airports Council International. The airport is the busiest in the country in terms of cargo traffic. The airport has five operating terminals spread over an operational area of and handles more than 780 aircraft movements per day. It handled a record 51 movements in one hour on 16 September 2014. In 2011, it was ranked the third-best in the world in the 25–40 million passengers category by Airports Council International. It is one of the two airports in India to have implemented Airport Collaborative Decision Making (A-CDM) to ensure timely takeoffs and landings.