This was complemented by a treaty between the Grand Duchy and the Kingdom of Prussia, as the line also ran through Prussian territory.
On 10 June 2008, a meeting in Grünberg of the neighbouring municipalities and the cities of Fulda and Gießen adopted an issues paper produced by DB Netz and agreed to try to get improvements made to the Vogelsberg Railway.
In September 2009, the CEO of Deutsche Bahn, Rüdiger Grube announced that €24.6 million would be spent up to 2011 from the economic stimulus package on the Vogelsberg railway.
[9] The work was completed in the summer of 2011, when in addition signals at 61 level crossings were adapted to increase the top speed to 120 km/h.
When locomotive-hauled trains were still ran, they were hauled by class 215 or 218 locomotives, but only DMUs have run on the line since the beginning of the millennium.
Since December 2011, passenger services have been operated by the Hessische Landesbahn with LINT 41 DMUs, which replaced some of the class 628s in October 2011.
Since the timetable change 2011/2012 on 11 December 2011, the Vogelsberg line has been served generally hourly by Regionalbahn services between Gießen and Fulda.
These services are operated by the Hessische Landesbahn GmbH (HLB) with LINT 41 diesel multiple units.