Iron Ore Company of Ontario
(5 pages of text)
A large, open pit, iron ore mine is plagued with crusher delays. The case describes the situation, provides relevant capacities and costs, and gives statistical data on the frequency and duration of crusher stoppages. The manager has to choose between holding trucks idle during crusher delays, reassigning the truck-shovel teams to waste removal, or to dump ore at an ore stockpile.
- To do a process analysis of a reasonably complex system that is partly batch and partly line flow.
- To demonstrate the difficulty of decision-making under multiple criteria.
- To examine the reasons for stockpiling serves to develop the groundwork for subsequent work in inventory control.
Mining, Quarrying, and Oil and Gas Extraction
Canada, Medium, 1990
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