Determining System Trailer Fleet Size and Terminal Assignment

Date
2012-05-02Author
Gurevich, Mark
Lacayo, Leonardo
Lynch, Courtney
Pavia, Andres
Reichsfeld, Jessica
Schrichte, Matthew
Yildirim, Baris
Zheng, Zheng
Metadata
Show full item recordAbstract
Saia, Inc. is a super-regional, less-than-truckload (LTL) company. The team developed an approach to optimize the composition of Saia's trailer fleet, and to assign the fleet to appropriate terminals throughout the network. The approach relies on a large-scale integer program that models the flow of trailers of different types over time using a week-long planning horizon across Saia's network of nearly 150 terminals. Using the model for a number of planning weeks, the approach is used to determine the right size and composition of the trailer fleet and provides a purchasing strategy given a capital budget for new trailers. It is estimated that Saia will save $1.8 million annually using the fleet proposed by the approach.
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- ISYE Senior Design [36]