The Effects of Trailer Scheduling on the Layout of Freight Terminals

Kevin R. Gue
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Kevin R. Gue: Department of Systems Management, Naval Postgraduate School, Monterey, California 93943

Transportation Science, 1999, vol. 33, issue 4, 419-428

Abstract: Supervisors in a less-than-truckload freight terminal establish material flows inside the terminal by assigning incoming trailers to open doors. A common scheduling strategy is to look ahead into the queue of incoming trailers and assign them to doors to minimize worker travel. We develop a model of the resulting material flows and use it to construct layouts that exploit this type of scheduling policy. Based on data from a test site, our results suggest that look-ahead scheduling alone can reduce labor costs due to travel by 15–20% compared to a first-come–first-served policy. Layouts constructed with the material flow model provide further savings of 3–30% in labor cost due to travel, depending on the mix of freight on incoming trailers and the length of the queue of trailers from which the supervisor makes assignments.

Date: 1999
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Citations: View citations in EconPapers (33)

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Persistent link: https://EconPapers.repec.org/RePEc:inm:ortrsc:v:33:y:1999:i:4:p:419-428

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