Question: The from-to Chart in the table below indicates the number of loads moved per 8hour day (above the slash) and the distances in ft (below

The from-to Chart in the table below indicates the number of loads moved per 8hour day (above the slash) and the distances in ft (below the slash) between departments in a particular factory. Fork lift trucks are used to transport materials between departments. They move at an average speed = 275 ft/min (loaded) and 350 ft/min (empty). Load handling time per delivery is 1.5 min, and anticipated traffic factor = 0.9. Assume reliability = 1.0 and worker efficiency = 110%. Use an availability factor = 95% and worker efficiency = 110%. Determine the number of trucks required under each of the following assumptions:
(a) The trucks never travel empty; and
(b) The trucks travel empty a distance equal to their loaded distance.

To Dept.A From Dept A 62/500 51/450 45/350 0 0 22/400 0 0 76/200 65/150 D 0 0

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