Transportation in Seoul 2005 AETRA passenger survey, jointly administered by the IATA and Airports Council International, voted it the best airport in the world. It was named by Skytrax as the world's 5th best airport for 2006. Incheon and Gimpo are linked to Seoul by highways, and Gimpo is also linked by subway (line #5). The Incheon International Airport Railroad airport express (or AREX, and styled as A'REX) station is located in the Transport Centre adjacent to the main terminal building and provides high-speed services to Gimpo Airport and Seoul station. There are four types of buses: Seoul has many big intercity/express bus
Shenzhen Bao'an International Airport Shenzhen Bao'an International Airport Shenzhen Bao'an International Airport (formerly Shenzhen Huangtian Airport) is the airport serving the city of Shenzhen, Guangdong province, China. It is located on the east bank of the Pearl River near Huangtian and Fuyong villages in Bao'an District, and is northwest of the city center. It is a hub for Shenzhen Airlines and Shenzhen Donghai Airlines and for cargo airline SF Airlines, and a focus city for China Southern Airlines and Hainan Airlines. The airport also serves as an Asian-Pacific cargo hub for UPS Airlines. The airport is undergoing major expansion with a second runway completed