The route from Mühldorf to Freilassing has also been proposed for duplication and electrification since 1985. The branch line from Tüßling to Burghausen would also be electrified as part of this work. The entire Munich–Mühldorf–Freilassing route would be used as an alternative to the Munich–Rosenheim and Rosenheim–Salzburg lines, especially to deal with the expected volume of traffic after the completion of the Brenner Base Tunnel. The line is part of the Magistrale for Europe, which is almost identical with the Trans-European Transport Networks (TEN-T) project No. 17, the upgrade of the Paris–Strasbourg–Stuttgart–Munich–Vienna–Bratislava/Budapest railway axis. While the TEN project between Paris and Bratislava will be almost completed by 2020, on the Munich–Mühldorf–Freilassing section there have been significant planning delays. This section is the longest missing link on the over 1300 km long route between Paris and Bratislava.
