@techreport{dc2aad9d58c242be9fc68aef2bb83d1b,
title = "A Gemoetrical Approach to Computing Expected Cycle Times for Class-Based Storage Layouts in AS/RS",
abstract = "An exact, geometry-based analytical model is presented that can be used to compute the expected cycle time for a storage/retrieval (S/R) machine, executing single-commands, dual-commands, or both, in a rack structure that has been laid out in pre-specified storage zones for classes of goods.The rack may be either square-in-time or non-square-in-time.The approach is intuitively appealing, and it does not assume any certain layout shape, such as traditional {"}L-shaped{"} class layouts.The model has been coded in Turbo Pascal, and can be used by designers as a tool for quickly evaluating alternative layout configurations with respect to expected S/R cycle time in an AS/RS, and thereby the throughput of an automated warehouse over time.This model has been successfully applied in a major manufacturing plant in Europe to evaluate reconfigurations of their rack storage layouts over the past five years.",
keywords = "Automated storage and retrieval systems, AS/RS, class-based storage.",
author = "J. Ashayeri and R.M.J. Heuts and M.W.T. Valkenburg and H. Veraart and M.R. Wilhelm",
note = "Pagination: 32",
year = "2001",
language = "English",
volume = "2001-57",
series = "CentER Discussion Paper",
publisher = "Operations research",
type = "WorkingPaper",
institution = "Operations research",
}