5291 2014 2014 eng 79 91 42 conferenceobject 0 -- -- -- We propose a new coarse-to-fine approach to solve certain linear programs by column generation. The problems that we address contain layers corresponding to different levels of detail, i.e., coarse layers as well as fine layers. These layers are utilized to design efficient pricing rules. In a nutshell, the method shifts the pricing of a fine linear program to a coarse counterpart. In this way, major decisions are taken in the coarse layer, while minor details are tackled within the fine layer. We elucidate our methodology by an application to a complex railway rolling stock rotation problem. We provide comprehensive computational results that demonstrate the benefit of this new technique for the solution of large scale problems. 14th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems 10.4230/OASIcs.ATMOS.2014.79 OpenAccess Series in Informatics (OASIcs) yes urn:nbn:de:0297-zib-51009 Ralf Borndörfer Markus Reuther Markus Reuther Thomas Schlechte Mathematical Optimization Borndörfer, Ralf Schlechte, Thomas MODAL-RailLab ROTOR MODAL-Gesamt Reuther, Markus Applied Optimization