Pirmasens–Landau section appeared as KBS 675 (Queichtalbahn, "Queich Valley Railway"). From 1997, it was attempted to make the Queichtalbahn more attractive for different customer groups, especially for tourist-oriented services. As part of this program, the Rosengartenexpress service was introduced in 1997; it operated on Sundays and public holidays as an excursion train from Landau to Zweibrücken and was categorised as a Regional-Express. Here, the name referred to Zweibrücken's Rosengarten (rose garden), which is a nationally-known landmark. However, the operation of the Rosengartenexpress train was abandoned two years later due to low utilisation. In the same year, on 1 July 1997, regular services resumed on the Wieslauter Railway. In the meantime, the abandoned Hinterweidenthal station was reactivated and was given the new name of Hinterweidenthal Ost. In September 2000, the 125th anniversary of the Queich Valley Railway was celebrated with steam train services operated by the Ulm Railway Society (Ulmer Eisenbahnfreunde, UEF), so the Queich Valley Railway came back into the public consciousness. The infrastructure of the line has been modernised over the years. In April 2010, an electronic interlocking was installed in Landau; since then signalling and switching at Landau station and Godramstein station have been remotely controlled from Neustadt. In the near future, the trains on the Queichtalbahn will be coupled (or uncoupled) in Landau with the Regional-Express trains on the Neustadt–Karlsruhe line to provide a transfer-free connection to and from Karlsruhe. Since 11 December 2011, the new Zweibrücken-Rosengarten station has been served by regular passenger services. In this context, the Public Transport Association of Rhineland-Palatinate South (Zweckverband SchienenPersonenNahVerkehr Rheinland-Pfalz Süd) is planning to open Annweiler-Sarnstall station in June 2012. Operations Passenger services The Landau–Rohrbach railway was for decades part of the east-west Saarbrücken–Bruchsal route, which was used in 1939 by trains running to/from Munich on timetable route 242, along with other services. After the Second World War, it gradually lost long-distance services. The route is now operated by Deutsche Bahn. Its western section is part of timetable (KBS) route 674: Saarbrücken–Pirmasens, while the eastern section forms KBS route 675: Landau–Pirmasens. Since December 2010 it is operated mainly with class 642 (Siemens Desiro) diesel multiple units, replacing class 643 (Bombardier Talent) DMUs on the Saarbrücken–Pirmasens Nord section and class 628 DMUs on the Landau–Pirmasens Nord section. The trains in the eastern sector operate mostly at hourly intervals under the Rhineland-Palatinate integrated timetable (Rheinland-Pfalz-Takt) with trains usually crossing in Annweiler