Systematic Approach of TOPSIS Decision-Making for Construction Method Based on Risk Reduction Feedback of Extended QFD-FMEA

Table 15

Table of analysis of hazard factors and risk reduction measures by basic causes of A004 alternative (Step 7, 8, and 9 of extended QFD-FMEA).

BC	BC rate	Hazard factors	HF-CI	Composition rate	Rate of HF	Accident type (AT)	Risk score	Risk reduction measures (RRM)	Priority	Risk reduction rate (RRR)	Reduction cliticality index (RCI)
M1	0.32	H_01	0.48	5.2%	1.7%	A01_01	8	Risk reduction measure 01	3	0.46	0.22
		H_03	6	65.2%	21.1%	A01_04	15	Risk reduction measure 02	2	0.56	3.36
		H_05	2.24	24.3%	7.9%	A01_05	20	Risk reduction measure 03	1	0.64	1.43
		H_12	0.48	5.2%	1.7%	A01_02	10	Risk reduction measure 04	2	0.62	0.30
		Sum	9.2	100%	—	—	—	—	—	Sum	5.31
M2	0.39	H_04	0.6	5.3%	2.1%	A01_02	10	Risk reduction measure 05	2	0.62	0.37
		H_05	3.36	29.9%	11.8%	A01_05	20	Risk reduction measure 06	1	0.66	2.22
		H_07	3.744	33.4%	13.2%	A01_01, A01_03	6	Risk reduction measure 07	4	0.65	2.43
		H_12	1.12	10.0%	3.9%	A01_02	10	Risk reduction measure 08	2	0.50	0.56
		H_14	2.4	21.4%	8.5%	A01_05	20	Risk reduction measure 09	1	0.62	1.49
		Sum	11.22	100%	—	—	—	—	—	Sum	7.07
M3	0.15	H_01	0.48	11.0%	1.7%	A01_01	8	Risk reduction measure 10	3	0.68	0.33
		H_04	0.6	13.7%	2.1%	A01_02	10	Risk reduction measure 11	2	0.52	0.31
		H_07	0.896	20.5%	3.2%	A01_01	8	Risk reduction measure 12	3	0.62	0.56
		H_08	2.4	54.8%	8.5%	A01_06	12	Risk reduction measure 13	3	0.60	1.44
		Sum	4.38	100%	—	—	—	—	—	Sum	2.63
M4	0.12	H_01	2.4	66.7%	8.5%	A01_06	12	Risk reduction measure 14	3	0.68	1.63
		H_10	1.2	33.3%	4.2%	A01_02	10	Risk reduction measure 15	2	0.62	0.74
		Sum	3.60	100%	—	—	—	—	—	Sum	2.38