Deferred Item and Vehicle Routing within Integrated Networks

Karen R. Smilowitz, Alper Atamturk and Carlos F. Daganzo

University of California Transportation Center, Working Papers from University of California Transportation Center

Abstract: This paper studies the possible integration of long-haul operations by transportation mode and service level (defined by guaranteed delivery time) for package delivery carriers. Specifically, we consider the allocation of deferred items to excess capacity on alternative modes in ways that allow all transportation modes to be utilized better. Model formulation and solution techniques are discussed. The solution techniques presented produce efficient solutions for large-scale problem instances. Allowing deferred items to travel by air reduces long-haul transportation costs. These savings increase with the amount of excess air capacity.

Keywords: Package delivery; distribution and logistics; multicommodity network flow; largescale; Social and Behavioral Sciences (search for similar items in EconPapers)
Date: 2002-10-01
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