Modelling and solution approaches to the multi-load AGV dispatching problem in container terminals

Evelina Klerides and Eleni Hadjiconstantinou
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Evelina Klerides: Business School, Imperial College London, South Kensington Campus, London SW7 2AZ, UK. E-mails: e.klerides05@imperial.ac.uk; e.hconstantinou@imperial.ac.uk
Eleni Hadjiconstantinou: Business School, Imperial College London, South Kensington Campus, London SW7 2AZ, UK. E-mails: e.klerides05@imperial.ac.uk; e.hconstantinou@imperial.ac.uk

Maritime Economics & Logistics, 2011, vol. 13, issue 4, 386 pages

Abstract: We consider the automated guided vehicle (AGV) dispatching problem in container terminals where vehicles are allowed to carry more than one container at a time. The main focus of the study is on dual-load AGVs, which may carry either two 20-ft containers or one 40/45-ft container. We propose a new mathematical formulation for the corresponding optimisation problem under a rolling horizon approach; the proposed model is a simplification over existing formulations. The performance of the model is evaluated against different scenarios with respect to minimising a defined dispatching ‘cost’. Our computational results are based on a number of scenarios for container terminals, with various layout configurations and levels of workload, and show that the model can generally be solved quickly providing good quality solutions.

Date: 2011
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