the ergonomics of the operators, maximizing the storage capacity.
For this reason, the new integrated system has been applied using
several ergonomics evaluation tools and tasks’ time and methods
analysis focused on the most important tasks, which are refilling,
picking and packing ones.
In detail, the refilling activity has been analyzed using OWAS as
main ergonomics assessment method, due to the necessity to
evaluate the full-body postures. It has been coupled with the calculation
of travelled meters to understand the total amount of time
spent to collect the required SKUs, with the number of lowering
and lifting index due to take the SKUs in the lower stocking levels
and finally with the percentage of hand positions in no-ergonomic
zone during both the collecting of SKUs in stocking area and the
refilling of empty locations in picking zone.