After the completion of the construction of the second track, the throughput capacity of the modernized existing line increases from 90 to 102 trains per day, and the transport capacity from 14 to 17.7 million net tons per year due to the changed organization of traffic. Taking into account the running of freight trains exclusively in the Koper-Divača direction (on the new line) and the expected load of freight trains and based on the calculated tracking intervals, the capacity of the new line amounts to of the second track, 120 trains per day or 25.7 million net tons per year, and the capacity of both lines (existing and second track) is 212 trains per day or 36.9 million tons per year.