Estimating optimum container and vessel fleet sizes in a cyclic liner service using a holistic approach

The management of container fleets, regardless of type and size, is a rather costly operation. A number of strategies are present in the literature intending to efficiently and effectively tackle container utilisation emphasising on the position and allocation of empty containers. These strategies can be roughly categorised in two main groups of studies: container fleet management and fleet size planning. In this paper, a more holistic approach takes place by merging the problems of optimum vessel and container fleet size. The paper develops a model which intends to identify the factors that affect container utilisation in order to enable the effective and efficient operation and control minimising container idle time. Results indicate that the development of such a model can assist container shipping companies in improving their operations since decision-making processes relevant to container fleet size, vessel capacity utilisation, scheduling and frequency of service provided by the operators can be improved.