The productivity of container terminal primarily depends on the process of handling containers, especially during the ship's loading process. The ship's loading process consists of ship planning and operation. ship planning is planned before operations. because of this process the ship planning can't influence realtime conditions. Especially, ship operation is different from ship planning. it is interfere the efficiency and productivity of container terminals.
In this paper, we analyze based ship planning and operations, and then we suggest realtime ship planning decision support rule regard to the realtime conditions. And we suggest some operation type for more efficiency loading operation - Twin lift, Twin Dispatch.