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Why do we have a “Running” category in a Reason Report?

Explains why time spent within the normal running range can still show up as lost time (or gained time) in a Reason Report.

Running appears as a time class in a Reason Report to highlight opportunities where the line isn't running at the desired speed.

What a Reason Report tells you

A Reason Report helps you identify inefficiencies and unproductive time. It shows the reasons behind downtime, slow running, and setup, and highlights opportunities — including time lost while running below rated speed.


What lost time means

Lost time is any missed opportunity to make product. When a line is in downtime, setup, or running slow, that time counts as lost time, because the line wasn't producing as many units as it could have.

Why Running appears in a Reason Report

It might seem odd that Running shows up in a report built around lost-time opportunities. But even within the normal (dark green) running range on the OFS speedometer, there's room for improvement.

  • Lost time — the needle sits within the dark green range but behind the desired speed (the green triangle). This counts as lost time, since there's potential to run faster.
  • Win time — the needle sits within the dark green range but ahead of the desired speed. This counts as time gained back, since the line is running faster than expected.

Running behind rated speed shows up in a Reason Report as lost time. Running ahead of rated speed shows up as a speed gain, displayed as a negative number, since it offsets lost time.

Key takeaways

  • If speed losses are occurring, there's an opportunity to improve and reach the desired speed.
  • If a line consistently runs faster than expected, consider whether the rated speed itself needs adjusting.