Ministry of Housing and Construction: China comprehensively launches the Lifeline Security Project of Urban Infrastructure Ni Hong, Minister of Housing and Urban-Rural Development, said recently that on the basis of deepening the pilot project and summarizing and popularizing replicable experience, China will launch the urban infrastructure lifeline security project in an all-round way. It is necessary to carry out a general survey of urban infrastructure, establish a database of urban infrastructure covering the ground and underground, identify the risk sources and risk points of urban infrastructure, and compile a list of urban safety risks. The lifeline of urban infrastructure refers to the urban infrastructure such as gas, bridges, water supply, drainage, heating and comprehensive pipe corridors, which are closely related to urban functions and people's life, just like the "nerves" and "blood vessels" of the human body. it is the guarantee of the safe operation of the city.