Warehouse simulator
A whole day at an e-commerce warehouse in a few seconds: orders come in, get picked, packed and labelled, and leave on three trucks. Change the staffing or the picking method and see where it jams.
Scenario:
Day replay
Orders waiting at each station
Picking Packing Labelling Trucks
How the model works
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Demand Orders arrive following an hourly curve. On Black Friday there is a spike at midnight and a stronger one in the evening.
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Picking One order at a time: about 2.5 minutes plus 0.4 per unit. In batches: one 4-minute walk shared by the whole batch, plus 0.35 per unit and 0.25 per order.
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Packing and labelling Each order goes through a packing station (1.2 minutes plus 0.15 per unit) and then the label printer (15 seconds). Everything varies randomly by ±20%.
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Shift and trucks The shift runs from 6:00 to 22:00. Trucks leave at 13:00, 19:00 and 21:30 with whatever has been labelled.
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Promise Anything ordered before 18:00 is promised for today. On-time rate counts how many of those promises leave on a truck today.