A picker walks 27 metres per pick because two fast movers sit at the end of the aisle.
The movement data is in the WMS, every pick with location, time and quantity. It is rarely analysed, because matching storage locations to pick frequency is done by hand. So stock is relocated on the strength of experience, usually during the stocktake.
620picks per shiftA picking shift in the two-aisle area handles around 620 lines.
27 mper pickThe average walk is 27 metres because two fast movers sit at the end of the aisle.
12items in the wrong placeTwelve A items sit in locations that do not match how often they are picked.
4.6 kmextra walking per shiftAcross 620 picks, these twelve locations add up to around 4.6 kilometres.
15% higher warehouse productivity is nothing more than these 4.6 kilometres, handed back to a shift that walks them today.
The 15% increase in warehouse productivity is this agent's headline figure. The 620 picks per shift and the average walk of 27 metres reflect a typical two-aisle warehouse; they do not come from a time study.