Wait times for part-time operators

If a part-time operator works in a station, work time is calculated from when the operator starts working until relative takt time is completed for that operator. For an operator allocated 50% of the time, relative takt time is 50% of total station takt time.

Example

In the Operations Sequence, total station takt time is 60 seconds. The second operator is allocated at 50%, so that operator's relative takt time is 30 seconds.

The second operator does not start work until Operator 20 (the first operator) completes the first operation, and the second operator must complete the next operation in 30 seconds. That operation takes 28.40 seconds, so the second operator's wait time is calculated as 1.6 seconds.