Infrastructure mainly includes transportation, airports, ports, bridges, communications, water conservancy and urban water supply, drainage and gas supply, power supply facilities and so on. Capital Construction: Capital construction refers to the construction of fixed assets in various sectors of the national economy, such as the construction of mines, railways, highways, bridges, farmland water conservancy, the installation of machinery and equipment, and the purchase of ships, vehicles and locomotives. After the completion of the basic construction, report the value of new fixed assets to the statistical department layer by layer.

　　Another interpretation: capital construction refers to an economic activity to realize the reproduction of fixed assets, which includes the construction and installation of fixed assets, the purchase of fixed assets and other related work (such as land acquisition, design, scientific experiments, training, management of construction units, etc.).