The performance measures collected from the simulation
are outlined as follows:
(1) Delivery time: The time spent waiting for a vehicle
to be allocated plus the time spent waiting for the
empty, allocated vehicle travel to the source stocker
plus transport time.
(2) Transport time: The time from when a lot is
removed from a shelf in the source stocker to
when the lot is placed on the shelf at the
destination stocker. Thus, transport time
includes two-stocker robot cycles (one at the
source stocker and one at the destination
stocker) and traveltim e on this interbay
system.