Study on Complexity of Precast Concrete Components and Its Influence on Production Efficiency

Table 12

Ranking for the influence weights of the complexity indices on production efficiency.

First-level complexity indices (latent variable)	Second-order path coefficient Pi	Weight of first-level indices Qi	Second-level complexity indices (observed variables)	First-order path coefficient Pi,j	Weight of second-level indices Qi,j	Ranking of Qi,j	Total weights, Qj	Ranking of Qj
Structural complexity D1	−0.54	0.321	Surface-to-volume ratio F11	0.76	0.194	4	0.062	7
			Number of openings F12	0.66	0.168	5	0.054	16
			Reinforcement ratio F13	0.76	0.194	3	0.062	8
			The number of embedded parts F14	0.82	0.209	2	0.067	4
			Amount of exposed rebar F15	0.92	0.235	1	0.076	1
Production complexity D2	−0.53	0.316	Material consumption F21	0.79	0.205	2	0.065	6
			Mold assembly time F22	0.75	0.195	3	0.061	9
			Mold manufacturing accuracy F23	0.72	0.187	4	0.059	10
			Waiting time in production line F24	0.88	0.229	1	0.072	2
			Abnormal production status F25	0.71	0.184	5	0.058	11
Management complexity D3	−0.61	0.363	Operating proficiency of workers F31	0.84	0.178	2	0.065	5
			Mold turnover rate F32	0.73	0.155	6	0.056	15
			Delivery delay F33	0.75	0.159	5	0.058	12
			Repair rate F34	0.76	0.161	3	0.058	13
			Degree of automation of production line F35	0.89	0.188	1	0.069	3
			Information management level F36	0.75	0.159	4	0.058	14