To enable rapid container transshipment between freight trains in modern rail-rail transshipment yards efficient computerized scheduling procedures are indispensable. This paper proposes a dynamic programming approach, which determines yard areas for gantry cranes, so that the workload is evenly...

Die hohen Anforderungen an heutige Wertschöpfungsnetzwerke in Bezug auf Flexibilität und Lieferbereitschaft stellen die Distribution vor die Aufgabe, Güter immer häufiger und in immer kleineren Mengen ausliefern zu müssen. Ein Ansatz, diesen Forderungen auf möglichst wirtschaftliche Art...

The generation of leveled production schedules is of high importance for mixed-model assembly lines whose parts and materials are supplied just-in-time by multi-level production processes. The Output Rate Variation problem is the standard mathematical representation of this complex level...

At rail-road transshipment yards, gantry cranes move containers from freight trains to trucks and vice versa. They constitute important entities in today's intermodal transportation systems. Real-world yards are often partitioned into several disjunct crane areas, so that crane interferences...

At cross docking terminals incoming deliveries of inbound trucks are unloaded, sorted, moved across the dock and finally loaded onto outbound trucks, which immediately leave the terminal towards their next destination in the distribution chain. Accordingly, a cross dock is a consolidation point...

Mixed-model assembly lines are of great practical relevance and are widely used in a range of industries, such as the final assembly of the automotive and electronics industries. Prior research mainly selected and discussed isolated problems rather than considering the whole planning process. In...

The sequence-dependent assembly line balancing problem Abstract Assembly line balancing problems (ALBP) arise whenever an assembly line is configured, redesigned or adjusted. An ALBP consists of distributing the total workload for manufacturing any unit of the products to be assembled among the...

Assembly lines are flow-line production systems which are of great importance in the industrial production of high quantity standardized commodities and more recently even gained importance in low volume production of customized products. Due to high capital requirements when installing or...

Previous approaches for balancing mixed-model assembly lines rely on detailed prognoses of the demand for each model to be produced on the line (model-mix). With the help of the anticipated model-mix a joint precedence graph for a virtual average model is deduced, so that the mixed-model...

Die Produktionsform der Variantenfließfertigung erlaubt es, unterschiedliche Varianten eines Grundmodells gemeinsam auf einem Fließsystem in wahlfreier Reihenfolge (Losgröße Eins) zu fertigen. Auf diese Weise wird auch der effizienten Fließfertigung eine kundenindividuelle Anpassung ihrer...