On-line vehicle dispatching rules are widely used in many facilities such as warehouses and manufacturing facilities to control vehicles' movements. Single-attribute dispatching rules, which dispatch vehicles based on only one parameter, are usually used. However, multi-attribute dispatching rules prove to be better in general. In this paper, we study the impact of reassigning moving vehicles on some good dispatching rules, both single- and multi-attribute, in the literature. Results suggest that reassigning moving-to-park vehicles has a significant positive effect on reducing the average load waiting time. We evaluate the dispatching rules' performance using the experimental design of a real-life case study. The performance criteria are: minimizing the average load waiting time, keeping the maximum load waiting time as short as possible and utilizing better vehicles. The results show that the combined dispatching rules which integrates multi-attribute dispatching and vehicle reassignment yields the best performance overall.

Additional Metadata
Keywords automation, centralized control, online dispatching, performance, physical distribution of goods, transportation, vehicle-based internal transport system, vehicles, wharehouses
Persistent URL dx.doi.org/10.1080/00207540412331320481, hdl.handle.net/1765/11872
Series ERIM Top-Core Articles
Journal International Journal of Production Research
Citation
Le-Anh, T, & de Koster, M.B.M. (2005). Online Dispatching Rules For Vehicle-Based Internal Transport Systems. International Journal of Production Research, 43(8), 1711–1728. doi:10.1080/00207540412331320481