We offer a formulation that locates hubs on a network in a competitive
environment; that is, customer capture is sought, which happens
whenever the location of a new hub results in a reduction of the
current cost (time, distance) needed by the traffic that goes from the
specified origin to the specified destination.
The formulation presented here reduces the number of variables and
constraints as compared to existing covering models. This model is
suited for both air passenger and cargo transportation.
In ...
We offer a formulation that locates hubs on a network in a competitive
environment; that is, customer capture is sought, which happens
whenever the location of a new hub results in a reduction of the
current cost (time, distance) needed by the traffic that goes from the
specified origin to the specified destination.
The formulation presented here reduces the number of variables and
constraints as compared to existing covering models. This model is
suited for both air passenger and cargo transportation.
In this model, each origin-destination flow can go through either one
or two hubs, and each demand point can be assigned to more than a hub,
depending on the different destinations of its traffic. Links
(``spokes'' have no capacity limit. Computational experience is provided.
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