[ame=http://www.youtube.com/watch?v=TmM2EyQuF8Q]Top 10 best aiports in the world 2011 - YouTube[/ame] Incheon International Airport has ranked top in the Airport Service Quality (ASQ) survey for the seventh consecutive year. The passenger satisfaction ratings were released on Tuesday at an international forum convened by the Airports Council International (ACI) for commercial operators and suppliers. The association of 1,700 airports worldwide surveyed 350,000 passengers last year in 34 categories, including service quality, facilities and management. Incheon was named the Best Airport Worldwide 2011 with 4.95 points out of a maximum 5. It was also named the best airport in the region and in terms of its size, winning the title of Best Airport in Asia Pacific and taking the top spot in the 25-40 million passenger size category. Incheon has secured the top spot for seven years running due to its overall facilities, fast immigration procedures and convenient transfer operations. Departing passengers only need 19 minutes to be processed, while those entering require just 12 minutes -- or three times faster than the international averages (60 minutes for departure and 45 minutes for entry). Asian airports swept the top five spots in the survey, with Singapore Changi Airport taking second place, followed by Beijing Capital International Airport, Hong Kong International Airport and Japan's Nagoya Airport. The awards will be given in Singapore on May 24.