Travel-Time Models for Automated Storage/Retrieval Systems

Bozer, Yavuz A.; White, John A.

doi:10.1080/07408178408975252

Cited by 382 publications

(273 citation statements)

References 6 publications

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“…Based on the scope of the analysis and the large number of alternatives to be evaluated for each scenario, an analytical approach was chosen and spreadsheets were used as support tools. The widely used model developed by Bozer and White (1984) was adopted to assess AS/RS performance. Therefore, the expected time for a single command cycle / is described by the following equation:…”

Section: Main Data and Assumptionsmentioning

confidence: 99%

Incorporating the environmental dimension in the assessment of automated warehouses

Tappia

Marchet

Melacini

et al. 2015

Production Planning & Control

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In today's competitive context, the paradigm of sustainable development is becoming more and more significant, also in warehousing. Managers are progressively considering not only purely economic aspects but also environmental concerns. Despite such consciousness, the selection of automated warehousing solutions has been mainly based on operational and economic performance in both practice and theory so far, whereas energy consumption and environmental performance have not been adequately taken into account. To fill this lack a model is proposed to evaluate the energy consumption and environmental impact of automated warehousing solutions. The model has been used to investigate whether the selection of automated solutions changes varying the dimensions involved in the analysis (i.e. only economic, only environmental or both). The analysis has been performed considering autonomous vehicle storage and retrieval systems (AVS/RSs) and its natural alternative, i.e. automated storage and retrieval systems (AS/RSs). Results confirm the importance of considering both dimensions in the assessment of automated warehouses, as depending on the scenario the technology selection shifts from AS/RS to AVS/RS when considering not only the economic but also the environmental impact. Additionally, this study provides new insights on the suitability areas of AVS/RSs.

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Section: Main Data and Assumptionsmentioning

confidence: 99%

Incorporating the environmental dimension in the assessment of automated warehouses

Tappia

Marchet

Melacini

et al. 2015

Production Planning & Control

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“…Bozer and White (1984) introduced four simple static dwell-point strategies. Table 5 summarises these rules and indicates the resulting onedimensional parking location.…”

Section: Dwell Point Locationmentioning

confidence: 99%

“…Hwang and Lim (1993) propose an efficient algorithm for the minimum expected travel time model of Egbelu (1991) by transforming it into a single facility location model. Egbelu and Wu (1993) compare the four rules of Bozer and White (1984) and the two dynamic rules of Egbelu (1991) by means of a simulation study. A ranking of the alternatives is difficult to make due to the fact that the rules are compared with a small number of replications for just one layout with five different arrival rates of requests under random and dedicated storage policies.…”

Section: Dwell Point Locationmentioning

confidence: 99%

“…Except for the location and height, the exact aisle also needs to be specified. Peters et al (1996) developed closed-form analytical models to determine dwell points in continuous square-in-time and rectangular racks under random storage based on the travel time estimations of Bozer and White (1984). Park (1999) developed an optimal dwell point policy for square-in-time racks under dedicated storage.…”

Section: Insert Table 5 XXXmentioning

confidence: 99%

“…Graves et al (1977) extended those results by also considering interleaving times resulting from a first-come-first-served (FCFS) dual command scheduling policy. Bozer and White (1984) relaxed some of the assumptions by proposing travel time models for rectangular racks with alternative single I/O-points. The authors considered FCFS dual command scheduling and random storage as control policies.…”

Section: Insert Table 8 XXXmentioning

confidence: 99%

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A survey of literature on automated storage and retrieval systems

Roodbergen

Vis

2009

European Journal of Operational Research

495

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Automated Storage and Retrieval Systems (AS/RSs) are warehousing systems that are used for the storage and retrieval of products in both distribution and production environments. This paper provides an overview of literature from the past 30 years. A comprehensive explanation of the current state of the art in AS/RS design is provided for a range of issues such as system configuration, travel time estimation, storage assignment, dwell point location, and request sequencing. The majority of the reviewed models and solution methods are applicable to static scheduling and design problems only. Requirements for AS/RSs are, however, increasingly of a more dynamic nature for which new models will need to be developed to overcome large computation times and finite planning horizons, and to improve system performance. Several other avenues for future research in the design and control of AS/RSs are also specified.

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Warehouse Automation

Singh

1999

Wiley Encyclopedia of Electrical and Electronics Engineering

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The sections in this article are Architecture for Automated Computer Control Functions of Storage Systems and Definition of as/rs As/Rs Components and Terminology Why An As/Rs? The Types of As/Rs Design of As/Rs Conclusions

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Travel-Time Models for Automated Storage/Retrieval Systems

Cited by 382 publications

References 6 publications

Incorporating the environmental dimension in the assessment of automated warehouses

Incorporating the environmental dimension in the assessment of automated warehouses

A survey of literature on automated storage and retrieval systems

Warehouse Automation

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