Table 8 Weights of the first-level index...

Table 8

Weights of the first-level index

First level index	Subjective weigh	Relative weight	Objective weight	Combined weight
The human-machine interface of CTC system	0.336	0.458	0.408	0.44
Information exchange between CTC system and external systems	0.243	0.321	0.279	0.258
Reliability of CTC system	0.421	0.221	0.313	0.302

First level index	Subjective weigh	Relative weight	Objective weight	Combined weight
The human-machine interface of CTC system	0.336	0.458	0.408	0.44
Information exchange between CTC system and external systems	0.243	0.321	0.279	0.258
Reliability of CTC system	0.421	0.221	0.313	0.302

Source(s): Authors’ own work

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