Security Check Mutual Recognition between High-Speed Railway and Urban Rail Transit Based on Variable Fuzzy Set Theory

Table 5

The class characteristic value of subway station B.

Parameter combination	Membership	Grade 1	Grade 2	Grade 3	Grade 4	Grade 5	H	Average
	Relative membership	0.35	0.26	0.24	0.08	0.07	2.26	2.26
	Membership after normalization	0.35	0.26	0.24	0.08	0.07
	Relative membership	0.34	0.28	0.38	0.15	0.18	2.64
	Membership after normalization	0.26	0.21	0.29	0.11	0.13
	Relative membership	0.22	0.11	0.09	0.01	0.00	1.79
	Membership after normalization	0.50	0.25	0.22	0.02	0.01
	Relative membership	0.21	0.14	0.27	0.03	0.05	2.34
	Membership after normalization	0.31	0.20	0.39	0.04	0.06