run on the Preußen–Münster railway. Development The RB 50 had a difficult start. Because the workshop in Hamm-Heessen had not yet been completed, the maintenance of all new railcars was carried out in the WestfalenBahn workshop in Rheine. Hence, bottlenecks often occurred that initially forced to use of one-part train sets. In the winter of 2008/2009 the entire Hellweg network was affected, but RB 50 was most frequently operated with one-part trains, which reduced the space available for passengers and caused crowded trains. The state of a platform in Preußen station, which serves the districts of Lünen-Horstmar and Lünen-South, prompted the Federal Railway Authority in early May 2009 to ban the trains stopping at a curved part of the platform there. As a first response, Eurobahn again ran one-part trains that did not have to stop on the curved part of the platform. In mid-May the originally planned two-part trains ran again, but with trains running from Dortmund to Preußen not stopping, which also solved the problem. Preußen station was only served by trains from Dortmund by the parallel service, the RB 51 (Westmünsterland-Bahn). Eurobahn put additional assisting staff in Preußen station at the beginning of 20 May 2009, so that the operation of the full timetable was possible. Eurobahn called on DB Station&Service as the owner of the railway facilities to remedy the situation. The platform was rebuilt in September 2009. Service The RB 50 runs every hour seven days a week. The service is reinforced between Lünen and Dortmund by the RB 51, which continues from Lünen via Gronau to Enschede. RB 59: Hellweg-Bahn The Hellweg-Bahn follows the Dortmund–Soest railway. Its name refers to the Westphalian Hellweg, a medieval road that followed a similar route. Development Eurobahn took over from three-part push–pull trains operated by DB Regio NRW. Its trains consisted of modernised, red Silberling carriages hauled by class 110 locomotives, veteran rollingstock from the days of Deutsche Bundesbahn. At the end of 2007 these trains were so often affected by dirt and technical defects that the Zweckverband Ruhr-Lippe sought an early takeover of the operation by Eurobahn in November 2007. However, this could not be realized. Service The service runs every half hour during the week and every hour on the weekend. In Soest, there is a guaranteed connection to the RB 69/RB 89 towards Paderborn. RB 69/89: Ems-Börde-Bahn The Ems-Börde-Bahn consists of the two services, the