A civil airport refers to a designated area for taking off, landing, taxiing, parking and other activities of civil aircraft, including ancillary buildings, devices and facilities. Civil airports do not include temporary airports and special airports.

China's air traffic system consists of three gateway compound hub airports, eight regional hub airports and twelve trunk airports. ?

By the end of 2020, 24 1 civil aviation airports in China have been certified.

Airport layout:

1. The overall layout of the airport should adapt to the overall development strategy of the national economy and society and the demand of the aviation market, and promote the rational distribution of productive forces, the balanced development of land and resources and the development of the national economy and society.

2. The regional layout of the airport should adapt to the regional economic geography and the level of economic and social development, conform to the overall urban planning, and promote the optimal allocation of aviation resources, the coordinated development of social economy and the improvement of urban functions in the region.

3. The airport layout should be connected with other modes of transportation, promote the establishment of modern comprehensive transportation system and the optimization of network structure, give full play to the comparative advantages of air transportation, and improve the overall efficiency and benefit of comprehensive transportation.

4. The airport layout should be coordinated with the internal elements of civil aviation system such as route network structure optimization, air traffic control construction, fleet development and professional and technical personnel training, so as to enhance the comprehensive competitiveness of airport clusters and further improve the overall coordinated development capability and international competitiveness of civil aviation transportation.