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By E. Kay, R Brown, G. Chandler and W. A. Davis (Auth.)

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La) 34 HANDLING IN A WAREHOUSE if / is an even number or Η(ρ)=ψ + ρ{^[€Χ+/Ϋ+ΗΖ\ + 21{1-1)γ} if/is odd. 11. 1a) and thence derive a cell block that would minimise total handling effort. We feel, however, that this would not be of great practical value. 1a) applies only to the racking layout of Fig. 1, which, though common, is not necessarily the best. Picking effort could be improved by adding lateral gangways, but the amount of improvement depends on the number /. 1a), become rather cumbersome and a large variety both of rack layouts, and interval factors A7(/+l) would have to be considered before any general conclusions could be stated.

Thus, on average movement will take place in a cube of volume (2 — 2μ)Κ with origin at the reference point if the cells are cubical and we have HINDIS = f ^ ( 2 -2μ)Κ. 13. The expressions for handling effort in Chapter 4 are also valid in this case, if one substitutes (2 — 2μ)Κ for K in all expressions. 14. It is not possible to consider movements under LIFO purely on the basis of average movement and average stocks. If indeed there were no fluctuations from the average, LIFO would be equivalent to MINDIS.

12. If no account of age of stock is taken and only the minimum distance rule applies, issues will always be taken from the nearest full cells and receipts stored in the nearest empty cells. Thus, on average movement will take place in a cube of volume (2 — 2μ)Κ with origin at the reference point if the cells are cubical and we have HINDIS = f ^ ( 2 -2μ)Κ. 13. The expressions for handling effort in Chapter 4 are also valid in this case, if one substitutes (2 — 2μ)Κ for K in all expressions. 14.

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