| Summary |
Luo-Yau Lin, 2008.06
Institute of Traffic and Transportation National Chiao Tung University
Gantry crane is the main equipment of loading and unloading containers in seaport terminals, and the quay crane operators are the main workforce of container terminals. The characteristics of gantry crane operators scheduling are different from those of other industries due to uncertain mooring time of ships and inconsistent loading and unloading amount of containers. The Container Terminal of most international ports in Taiwan at present use manual scheduling based on some rule of thumb, it will be in addition to waste time on this method, the result of scheduling also have some defects needs to improve.
In this search, we first study the characteristics of gantry crane operators scheduling, and problems of present scheduling operators, then in accordance with the scheduling of existing manual rule of thumb and company's rules, use Mathematics Programming to formulate a scheduling model. According to the model, then we design the computer program to solve it. It can not only replace manual operation and save scheduling time, but also resolve the result of different number of operators.
The model is applied to a case study of a shipping company. Using real world data of 50 operators and the Shipping Schedule of a week, obtained from the studied company and solved by the commercial optimization software OPL. The results show that the model can either replace current manual scheduling to increase scheduling efficiency, and improve the labors aniso-average. Preferences of rest model which consider both sides of proprietor and labors to provides many useful information for manpower planning and management for shipping company.
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