“…Alongside mentioned variables, we have also considered another input variable-berth water depth WDb, closely related to quay length, that represents the average depth along the port/terminal quay in meters, indirectly determining the size of the vessel that can be berthed alongside the quay [11,13,33,40,60]. The introduced variable, which is the most appropriate proxy for the aforementioned equipment data category, is quay cranes QC, representing the number of units used for container handling in ship-to-shore and shore-to-ship relations [16,32,37]. The final first-order input variable associated with both, the equipment and labor data categories, is yard equipment YE.…”