Table 7 The NC of the second-level index... | Emerald Publishing

Table 7

The NC of the second-level index

Second level index	NC
Second level index	Ex	En	He
Alarm information of CTC system	0.356	0.058	0.009
The usability of CTC system	0.391	0.140	0.017
The interface display of CTC system	0.293	0.097	0.013
Interface information exchange between the CTC system and RBC	0.317	0.054	0.009
Interface information exchange between the CTC system and TSRS	0.350	0.050	0.012
Interface information exchange between the CTC system and CBI	0.361	0.067	0.008
Interface information exchange between the CTC system and TCC	0.320	0.035	0.005
Interface information exchange between the CTC system and GSM-R	0.247	0.081	0.031
Maintenance and updates of the CTC system	0.337	0.036	0.017
Reliability of CTC system equipment	0.349	0.032	0.023
CTC system software reliability	0.203	0.037	0.015
Internal information exchange within CTC system	0.339	0.053	0.015

Second level index	NC
Second level index	Ex	En	He
Alarm information of CTC system	0.356	0.058	0.009
The usability of CTC system	0.391	0.140	0.017
The interface display of CTC system	0.293	0.097	0.013
Interface information exchange between the CTC system and RBC	0.317	0.054	0.009
Interface information exchange between the CTC system and TSRS	0.350	0.050	0.012
Interface information exchange between the CTC system and CBI	0.361	0.067	0.008
Interface information exchange between the CTC system and TCC	0.320	0.035	0.005
Interface information exchange between the CTC system and GSM-R	0.247	0.081	0.031
Maintenance and updates of the CTC system	0.337	0.036	0.017
Reliability of CTC system equipment	0.349	0.032	0.023
CTC system software reliability	0.203	0.037	0.015
Internal information exchange within CTC system	0.339	0.053	0.015

Source(s): Authors’ own work