Building on the findings from the initial simulation, Seth and his team sought to introduce additional, realistic constraints in to the simulation; operational staff scheduling, food preparation time and cart return and clean up time.
With a 45 minute delivery turnaround time target set by management, the feasibility of this goal was dependant on identifying an optimal staffing schedule and the most efficient delivery and pickup methods.
Testing delivery and pick up scenarios
Three scenarios for delivery and pickup routes were tested; a standard original operation (3 zones, fixed route), a modified pick up schedule (rotational route) and an experimental six-zone facility layout route. It had initially been predicted that the rotational route would provide the most efficient means of delivery and pickup, however, simulation results uncovered that the six-zone layout provided the best results.
Verifying staff scheduling and utilization
Importing staff schedules into the simulation, it was quickly shown that the existing rota would be inadequate in order to achieve the objectives of the new proposed food system. As a result, a new hourly staffing schedule was developed, taking into consideration the additional tasks of food preparation and cart cleaning.