An assignment model for dynamic load planning of intermodal trains
Computers and Operations Research
Medium-Term Pricing and Operations Planning in Intermodal Transportation
Transportation Science
An assignment model for dynamic load planning of intermodal trains
Computers and Operations Research
A Survey on Container Processing in Railway Yards
Transportation Science
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We propose a dynamic model for optimizing the flows of flatcars that considers explicitly the broad range of complex constraints that govern the assignment of trailers and containers to a flatcar. The problem is formulated as a logistics queueing network which can handle a wide range of equipment types and complex operating rules. The complexity of the problem prevents a practical implementation of a global network optimization model. Instead, we formulate a global model with the specific goal of providing network information to local decision makers, regardless of whether they are using optimization models at the yard level. Thus, our approach should be relatively easy to implement given current rail operations. Initial experiments suggest that a flatcar fleet that is managed locally, without the benefit of our network information, can achieve the same demand coverage as a fleet that is 10 percent smaller, but is managed locally with our network information.