ARRIVAL and departure procedures at Kimpo International Airport have been streamlined to cope with the highest increase of passenger traffic in the world. The number of passengers passing through Seoul airport reached 27.3 million last year - a 19.6 per cent increase from the previous year. It was the biggest increase in traffic among the 400 member airports of Airports Council International, ahead of Las Vegas International Airport which recorded a 19.2 per cent rise. The boost elevated Kimpo to the ranking of 13th-busiest airport in the world and the busiest in Asia. Chicago's O'Hare International Airport was busiest with 66.4 million passengers. Hong Kong's Kai Tak airport was ranked 17th, followed by Tokyo's Narita at 21st and Singapore at 27th. In freight transportation rankings, Kimpo was placed 11th in the world, handling 1.3 million metric tonnes last year. To process the fast-growing numbers of passengers, entry and exit procedures have been simplified and baggage claim has been speeded up by the introduction of four additional X-ray scanners. Now, the entire process from landing to exiting with baggage can be completed within 25 minutes. The once-bare terminal has also been enhanced. Colourful and artistic decorations now adorn the walls which were once bare. Transit lounges have been refurbished to include shower rooms. Complaints about the bland food offered in the airport coffee shops and eateries have been answered with a new 530-seat restaurant run by the Westin Chosun hotel with 100 dishes on the menu. There is a choice of Korean, Chinese, Japanese and Western cuisine. An observation deck also opened on the terminal and further improvements include snack bar and gift-shop 'islands' in the building, a business centre, sauna, pharmacies, beauty parlours and more restaurants. In the early 1960s, there was just one terminal and one runway at Kimpo. The original building is now the domestic terminal and two international terminals have since been added, along with two more runways. Another terminal used by 2,400 passengers a day is in the city centre next to the Samsungdong exhibition complex. Outbound passengers can check in their luggage and complete all necessary departure formalities at the Korea City Air Terminal, which is connected to the underground rail network, before catching a non-stop limousine bus to the airport. The city centre terminal even has a car park which can take up to 4,000 vehicles.