Study on Key Cost Drivers of Prefabricated Buildings Based on System Dynamics

Table 2

Basic equation parameters.

Parameter	Values or ranges of values
Linear correlation coefficient between prefabrication rate and construction cost	0.56
Subsidies	180 yuan/m^2
Design defect maximum	5%
Transportation loss rate	1%
Artificial rate	1.084
Mechanical rate	0.0439
Component storage cost coefficient	0.4
Component transportation cost coefficient	0.21 yuan/piece·km
Mass equation coefficients , h, and k	0.4, 0.8, 1
Engineering quality level	[0, 1]
Degree of design standardization	[0, 1]
Capacity coefficient of the prefabricated component factory	[0, 1]
Information technology level	[0, 2]
Deepen design level	[0, 3]