Abstract
We study the travel time needed to pick n items in a paternoster, operating under the m-step strategy. This means that the paternoster chooses the shortest route among the ones that change direction at most once, and after collecting at most m items. For random pick positions, we find the distribution and moments of the travel time, provided n>2m. It appears that, already for m=2, the m-step strategy is very close to optimal, and better than the nearest item heuristic.
Original language | Undefined |
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Article number | 10.1016/S0167-6377(02)00154-2 |
Pages (from-to) | 377-386 |
Number of pages | 10 |
Journal | Operations research letters |
Volume | 30 |
Issue number | 6 |
DOIs | |
Publication status | Published - Dec 2002 |
Keywords
- Travel time distribution
- Uniform spacings
- IR-71580
- EWI-17939
- METIS-207012
- Warehousing systems