英文摘要 |
Surveillance operators of quay crane operations, as well as the drivers of quay cranes, are the main parts of stevedoring workforce in the container terminal. For the existence of berthing peak and village and the difference in numbers of loading and discharging containers, the demand in each shift might be extremely varying for each other. These characteristics also make their duty assignment different than the task in the general business companies. The studied company exploits a cyclic assignment principle to dispatch groups of surveillance operators by manual operations. No matter the time expenditure of execution or the flexibility of planning, it has always a little bit of rigidity. This research designs a computer program according to the principles of the cyclic assignment for accelerating the implementing process. Meanwhile, a mathematical programming model is formulated for the manpower scheduling problem. The test result of the studied case show that this model is suitable for the shift assignment and manpower planning for this company. Meanwhile, if this company would like to arrange in adding the humanistic constraints without three consecutive shifts and over-day consecutive shifts, one more group of surveillance operators is needed and the status of slicing assignment is also required. |