Percent of Scheduled Service
Work that has had the benefit of passing through the planning process is generally “scheduled” as the last step in that process. By establishing the amount of work that has been scheduled (and therefor planned) we can gauge an operations ability to complete work with a high level of efficiency. Data collected from mine studies has shown that the average downtime for unplanned / unscheduled work is up to eight times greater than the downtime for planned / scheduled activity. Because of this, many mines track the percentage of work that is planned and subsequently scheduled. Mines with very effective systems are able to complete between 80% and 90% of their work as planned / scheduled work.
Some mines code work orders (as “scheduled” or “unscheduled”) so they can establish the percentage based on work order count. Other mines prefer to keep track of downtime hours and make the calculation based on scheduled and unscheduled downtime. Whichever data is easier to collect should decide which method is best for any particular mine.
... to be continued.
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