The single line includes intensified trips on the bus line AB-30 (A) during rush hour plus the existing 120-minute cycle in the section between Westerngrund - Gelnhausen - Somborn on the operating days Monday-Friday.

The single line includes intensified trips on the bus line AB-30 (A) during rush hour plus the existing 120-minute cycle in the section between Westerngrund - Gelnhausen - Somborn on the operating days Monday-Friday. The towns of Horbach, Geislitz and Eidengesäß as well as the Gelnhausen train station (via the bus station) are also connected.

The performance can be scheduled from the start of operation with 1 vehicle (15 m bus or articulated bus plus 1 replacement vehicle of the same capacity) and in an average calendar year with rounded 77 720 Nkm. pa as well as rounded 2 178 hours of schedule.