Site Selection of Precast Concrete Component Factory Based on PCA and GIS

Table 1

Site selection indicators system of PC component factory based on revised diamond model.

Target	One-level indicators	Two-level indicators	Description
Site selection of PC component factory	Environmental factor	Land use condition X1	Proportion of industrial land area
		Hydrologic condition X2	Proportion of lake area in water area
		Site condition X3	Flatness ratio
		Local monopoly X4	Number of existing PC component factories, and the size/output of similar factories
		Transportation X5	Average transportation time
	Requirements	Prefabricated construction projects X6	Construction in progress and to be constructed
		Factory area radiation range X7	150 km
	Regional competition	PC component industry competitiveness X8	Proportion of prefabricated buildings (built) in total project area
	Related and supporting industries	Raw material supply X9	Output value of each raw material industry
		Fuel, energy, and power conditions X10	Total supply capacity
		Construction support X11	Completed output value of the project
	Technological innovation	Technical innovation personnel X12	R&D personnel
		Technical innovation cost X13	Total internal expenditure of R&D activities
	Policies and regulations	Government's industry planning X14	—
		City planning X15	—
		Favorable government	—
		Policies X16