Optimal location of intermodal freight hubs

Illia Racunica and Laura Wynter

Transportation Research Part B: Methodological, 2005, vol. 39, issue 5, 453-477

Abstract: We present an optimization model that has been developed to address the problem of increasing the share of rail in intermodal transport through the use of hub-and-spoke type networks for freight rail. The model defined is a generalization of the hub location problem in that it allows for non-linear and concave cost functions on different segments. A linearization procedure along with two efficient variable-reduction heuristics was developed for its resolution, making use of recent results on polyhedral properties of this class of problems. Computational experience and a qualitative analysis from a case study on the Alpine freight network is provided.

Date: 2005
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