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Table 7 RO-RO units SSS model

From: Short sea shipping: a statistical analysis of influencing factors on SSS in European countries

RO-RO units SSS volume
Adjusted R2 = 0.796, F = 32.2, p = 0.000
Variables Coefficient T-value Sig. VIF
Constant −2.679 −0.952 0.352  
Total Number of SSS Ports [port] 1.095 5.688 0.000 1.788
Road Length [1000 km] 0.707 3.884 0.001 2.123
Land Area [1000 km2] −0.039 −3.337 0.003 1.760