As the line from Armsheim to Mainz is single-track only, services can be operated at most every half-hour, with oncoming trains forced to wait in stations, usually in Saulheim and Mainz-Marienborn (RB) or Mainz-Gonsenheim (RE).
Between the towns of Helmstedt and Marienborn one can still see the former border control points, which were turned into a museum in the 1990s.