To relieve human order pickers from unproductive walking through a warehouse, parts-to-picker systems deliver demanded stock keeping units (SKUs) toward picking workstations. In a wide-spread parts-to-picker setup, a crane-operated automated storage and retrieval system (ASRS) delivers bins with...

Rail-rail transshipment yards are an emerging and more ecient alternative totraditional shunting yards. Instead of a time-consuming reshuing of railcarsvia shunting hills, in these modern yards, huge gantry cranes tranship containersbetween different freight trains. As multiple cranes process...