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Table 6 Rotated factor loadings and communalities using Varimax rotation – Existing network
From: Performance assessment of alternative SSS networks by combining KPIs and factor-cluster analysis
Variable | Factor 1 | Factor 2 | Factor 3 | Communality |
|---|---|---|---|---|
WD - Weekly Demand | −0.200 | −0.335 | −0.819 | 0.824 |
WF - Weekly Frequency | −0.958 | −0.029 | − 0.101 | 0.928 |
NS - N. of intermediate Stops | 0.426 | 0.385 | −0.258 | 0.396 |
SD - Sailing Distance | 0.099 | 0.532 | −0.658 | 0.726 |
RWT – Ratio WT/TT | 0.963 | −0.007 | 0.205 | 0.969 |
OC - Operating Cost | 0.070 | 0.946 | 0.104 | 0.911 |
TC - Time Cost | 0.121 | 0.963 | 0.029 | 0.943 |
UE – Unitary Emission of CO2 | 0.928 | 0.281 | −0.111 | 0.953 |
Eigenvalue | 2.9560 | 2.4473 | 1.2466 | 6.6498 |
% Var | 0.369 | 0.306 | 0.156 | 0.831 |