Infrastructure is the guarantee for

Infrastructure is the guarantee for the sustainable development of the national economy and society, and it is also the basis for urban survival. According to research by American economist Channery, during the development stage of per capita income of 140-1120 US dollars, the contribution of infrastructure factor productivity to output growth will increase from 16% to 30% (Chennary, 1989). World Bank expert G. Ingram has also shown that infrastructure capacity and economic output are growing at the same time. Every 1% increase in total infrastructure increases GDP by 1% (g Ingram, 1996). It can be seen that infrastructure plays an important role in the early and middle stages of economic development.