It will also include the establishment of a wide passageway under the tracks, unifying some urban functions, and provide an improved access from the district of Schallmoos.

In 2014, the line gained another urban station, Salzburg Liefering, and the western branch will have three continuous tracks to Freilassing.

To ensure that it has sufficient capacity for a 15-minute service, a third track is being built on the line between Salzburg Taxham Europark and Freilassing.

The construction of the first station on the western branch (Salzburg Taxham Europark) began in the spring of 2005 and the station became operational in June 2006 and opened with the Europark, one of the largest shopping centres in Western Austria, and serves a school of the Missionaries of the Sacred Heart, the Red Bull Arena and a large number of households.

After the completion of the work, the services of S 2 and S 3 on the trunk route through the densely built-up urban area between Salzburg Hauptbahnhof and Freilassing will be timed to give a 15-minute interval schedule.

Salzburg AG operated lines S 1 and S 11 with 18 two carriage DC electric multiple units built by Simmering-Graz-Pauker or its successors.

The S1 and S11 lines from Lamprechtshausen and Ostermiething to Salzburg Hauptbahnhof are planned to be extended to a new Mirabellplatz underground terminus station via a 750-metre tunnel, at a projected cost of €140 million.