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

Table 16

Analysis table of subjective beliefs about risk reduction and additional costs corresponding to Steps 11 and 12 of extended QFD-FMEA at A004.

Risk reduction measures (RRM)	Reduction measures priority	Safety efficiency (SE)				Risk reduction rate (RRR)	Increasing safety cost rate (ISCR) (%)
		Education (SE1)	Technology (SE2)	Management (SE3)	Personal (SE4)
		0.7	0.5	0.4	0.3
Risk reduction measures 01	3	0.4	0.4		0.2	0.46	0.10
Risk reduction measures 02	2		0.5	0.4	0.1	0.56	2.10
Risk reduction measures 03	1			0.6	0.4	0.64	0.10
Risk reduction measures 04	2	0.2			0.8	0.62	0.30
Risk reduction measures 05	2	0.2			0.8	0.62	0.90
Risk reduction measures 06	1		0.2		0.8	0.66	0.10
Risk reduction measures 07	4			0.5	0.5	0.65	0.70
Risk reduction measures 08	2	0.5			0.5	0.5	1.60
Risk reduction measures 09	1	0.2			0.8	0.62	2.10
Risk reduction measures 10	3			0.2	0.8	0.68	1.20
Risk reduction measures 11	2	0.3		0.6	0.1	0.52	0.40
Risk reduction measures 12	3	0.2			0.8	0.62	2.10
Risk reduction measures 13	3		0.5		0.5	0.6	3.10
Risk reduction measures 14	3			0.2	0.8	0.68	0.20
Risk reduction measures 15	2	0.2			0.8	0.62	1.40
Sum							16.4