Comparable to the Genoa/Palermo route served by competitors, in that the ports of Palermo and Termini Imerese, which are only a few kilometres apart, can be regarded as mutually substitutable.
Assimilable à la ligne Genova/Palermo, desservie par la concurrence, les ports de Palermo et de Termini Imerese, distants de quelques kilomètres pouvant être considérés comme substituables.