Lost Time is a critical principle that measures the gap between the performance of what you produced and what you should have produced in a given period. LiveTracking automatically calculates Lost Time for you.
Table of Contents
Key Terms
| Term | Definition |
| Actual Time | The actual time it took to complete production. |
| Potential Time | Optimal duration to complete production. |
| Max Bottleneck Speed | The fastest speed at which the bottleneck process can operate. LiveTracking uses Target Speed for each product as the Max Bottleneck Speed. |
Types of Lost Time
| Type of Lost Time | Definition |
| Time Spent Slow Running | This is the time lost due to running below the Max Bottleneck Speed (Target Speed). |
| Downtime | This is the time lost due to stopping the line. Downtime can be categorized for many different reasons, which allows for precise decision-making. |
| Lost Time Making Waste | This refers to the amount of time lost due to making waste. |
| Lost Time Reworking Products | This refers to the lost time attributed to running a product through the line again to rework it. |
Calculations
| Formula | Example |
| Lost Time = Actual Time - Potential Time |
Given: Actual Time: 10hrs Potential Time: 6hrs Computation: = 10hrs - 6hrs = 4hrs |