The Neumünster–Bad Oldesloe railway is an approximately 45-kilometer-long single-track, non-electrified main line in the German state of Schleswig-Holstein.

Rickling-Ölweiche station had been abandoned at the time of cessation of services between Neumünster and Bad Segeberg in 1984 and had not been maintained for several years before that.

The line is currently operated hourly by Nordbahn Eisenbahngesellschaft with Alstom Coradia LINT diesel multiple units.

As a first step, a parallel bus service was introduced because the platforms at some stations are too short for operating double sets.

The line has been proposed for duplication and electrification by the Federal Ministry of Transport, Construction and Urban Development.

In 2010 a review of the plan showed a benefit-cost ratio of 0.6 for the about €300 million project and therefore it could not be financed with federal funds.