Real-Time Trailer Scheduling for Crossdock Operations

This article focuses on how to assign incoming trailers to receiving doors to help reduce total transfer time for freight in a crossdock operation. Three different crossdock configurations, four receiving doors and four shipping doors (four-to-four doors), eight receiving and shipping doors (eight-to-eight doors), and four receiving to eight shipping doors (four-to-eight doors), are considered. Four simulation models are built using the Arena simulation package. Two time-based trailer scheduling algorithms are proposed and compared with the look-ahead and FCFS (first come first served) policies under different trailer arrival headways, crossdock layouts, and pallet destination distributions. Crossdocking is a type of hub-and-spoke network operation in which shipments can be consolidated and rearranged to create full truckload shipments by transferring loads directly, with no storage in between. Minimizing time and costs incurred from inbound to outbound trailers in the hub is the main challenge. This research uses real-time information to schedule trailer unloading in order to decrease times and costs in the process. Future research should consider real-world cost and data, and larger crossdocks should be studied.

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01105473
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Jul 24 2008 5:27PM