A combine region allows multiple item entries to combine into one region location from separate regions. The combine region has one associated region location. An example of a combine region would be where items coming from three different conveyor belts converge into a robot region for processing. The robot region has only one region location that holds multiple items.
Entry Transition Indicators reside physically on the same Item Carrier in that region. Multiple Items may also enter through one Entry Transition Indicator by PRT receiving multiple notifications from the Transition Indicator. The Items themselves are in no way required to be associated.
Secondary region types.