all trains ran from that date ran on the new link between Hassel and Rohrbach. Also in 1904 a further shortening of Palatine Ludwig Railway was put into operation, running via Kirkel and Limbach. These changes had the effect of making the Rohrbach–Einöd–Zweibrücken line part of the South Palatine Railway from Landau to Saarbrücken. On 1 December 1911, a branch of the Landau–Rohrbach railway, the Wieslauter Railway (Wieslauterbahn) was opened on the Hinterweidenthal–Dahn–Bundenthal-Rumbach route. From that time, the Bundenthaler service operated on this line on Sundays, starting in Ludwigshafen am Rhein, then running on the Palatine Ludwig Railway (Ludwigshafen–Neustadt), and the Palatine Maximilian Railway (Neustadt–Landau) and from Landau to Hinterweidenthal over the Landau–Rohrbach railway. A new junction station called Hinterweidenthal was opened specifically for this new line, while the existing Hinterweidenthal-Kaltenbach station was renamed Kaltenbach. In another name change carried out in 1936, the former station of Biebermühle was renamed Pirmasens Nord, although it is several kilometres away from Pirmasens, and is not even within the municipality’s boundaries. In addition, the performance of the line was improved with technical innovations, including at Zweibrücken station, which acquired two electro-mechanical signal boxes in 1940. Gradual loss of significance (Deutsche Bundesbahn 1945–1993) As a result of German defeat in World War II, there was an initial decline of the Landau–Rohrbach railway when the second track of the line was removed between 1945 and 1948 as part of German reparations during the French occupation. Also affecting the development of the Southern Palatinate line was the electrification of the Palatine Ludwig Railway, which took place in the years 1960–1964. Especially in the Kaiserslautern–Neustadt section, the difficult topography (including many tunnels) meant that this work required single-track operations and speed restrictions so that the capacity of the line was limited. For this reason, during the same period freight traffic was diverted over the Queichtalbahn, so that there was an initial increase of traffic on the line. However, this changed with the completion of electrification work in 1964. The freight on the Queichtalbahn declined rapidly as it now largely ran over the much higher-capacity Palatine Ludwig Railway. For passengers, the line regained some of its importance for the operation of long-distance trains, especially from Saarbrücken to southern Germany, because the line is somewhat shorter that the Palatine Ludwig Railway. In this context, Landau also received a new station building, as the old building was very badly damaged