Models for minimizing backhaul costs through freight collaboration

Erin Bailey, Avinash Unnikrishnan, Dung-Ying Lin

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


The competitive nature of the trucking industry has forced trucking firms to develop innovative solutions to improve their operational efficiency and decrease marginal costs. One way carriers and shippers are accomplishing these tasks is by collaborating on operations through various strategies. Two optimization models are developed to route the carrier of interest's backhaul routes and select collaborative shipments to fulfill; one is formulated as an integer program, and the other is formulated as a mixed integer program. Two solution methodologies, a greedy heuristic and tabu search, are used to solve the two problems, and numerical analysis is performed with a real-world freight network. Numerical analysis reveals that the percentage of cost savings for backhaul routes can be as high as 27%.

Original languageEnglish
Pages (from-to)51-60
Number of pages10
JournalTransportation Research Record
Issue number2224
Publication statusPublished - 2011 Dec 1

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Mechanical Engineering

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