Maersk informed about upcoming railway capacity constraints at the Port of Koper due to significant infrastructure upgrades on the Slovenian public rail network.
These extensive projects are set to intensify between June and December 2025, affecting key rail corridors across the country.
The most notable impact will be on the Ljubljana–Sežana/Koper line, the primary rail connection to the Port of Koper, where considerable disruption is expected.
Specific closures will contribute to the capacity challenges. From 29 June to 30 July 2025, the Divača–Gornje Ležeče section will be fully closed. Additionally, from 4 August to 10 December 2025, one track of the Verd–Logatec section will be continuously closed, limiting throughput on that route.
Further disruptions will occur as reconstruction work begins at Jesenice station in September 2025. Initially, closures will take place over weekends, but starting in March 2026 and continuing until January 2027, rail traffic to and from Austria via Slovenia will face operational restrictions due to these works.
At Ljubljana station, reconstruction is scheduled from 6 October 2025 through January 2026. During this period, only two tracks will remain operational for both freight and passenger transport, which will significantly reduce handling capacity.
These projects combined are expected to reduce rail capacity by up to 50 percent, decrease service frequency, complicate planning, and lead to delays in shipment handling.
