1
Determine Proportion of Long Distances
The first step should be to determine how much time employees spend walking long distances. Very short segments are usually not so easy to optimize because they indicate many activities between walking segments, such as many picking stops. Therefore, the focus is on segments > 5 sec at a time.
A
Motion-Mining®
Motion-Mining® can be used to determine the total time employees spend walking and/or driving. By filtering for segments > 5 sec., the time can be restricted to the long distances.
B
Process Observation and Time Recording
As part of time recording, the frequency and duration of activities can be determined with the help of a tally sheet or a corresponding app.
2
Determine Optimized Locomotion Share
How the optimized travel share is determined depends strongly on the type of measure. Alternatively, routes can be standardized (e.g. using a route strategy), reduced (e.g. using autonomous vehicles) or speeds increased.
A
Standardization of the Paths
When standardizing routes, it is necessary to determine how long the optimal routes between the relevant locations in the system would take and how frequently they occur. A good approximation can be obtained, for example, by determining the average distance of a picking or replenishment tour and multiplying it by the average frequency per day.
B
Reduction of Paths
When reducing distances, it is important to identify the distances that people need to walk. For example, the distance from goods receiving to the warehouse can be reduced to the distance from goods receiving to the delivery point of the conveyor system. The new time per trip is then multiplied by the frequency.
C
Increasing the Speed
If the speed is increased, the first step is to calculate the distance travelled by the employees in the time they have been moving. This is done by multiplying the time by the average speed. Then divide the distance by the optimized speed to get the optimized time.
3
Determine Time that can be Saved
The time saved per day and employee is the difference between the actual and target time per day.
4
RoI Calculation
The potential savings per day and per person are extrapolated to the number of employees and working days per year. This is compared with the cost of the measure.
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