As more and more container terminals open up all over the world, competition for business is becoming very intense for container terminal operators. They are finding out that even to keep their existing Sea Line customers, they have to make them happy by offering higher quality service. The quality of service they can provide depends on their operating policies and the design of the terminal la...

In recent years, the scale of container transportation and the size of vessels are becoming larger and larger; development of automatic container cranes becomes a necessity. As a key function of automatic control of unmanned cranes, the optimum route can minimize the cycle time by calculating the most efficient combination of horizontal and vertical motions of container loading/unloading. In th...

In this paper, Gain-Scheduling (GS) control via parameter dependent Lyapunov function for crane is synthesized. A purpose of cranes system is to lift and carry a load to assigned positions. Cranes are required to transport the load fast, accurately and to reduce oscillations. In previous research, a method to robust control of cranes to suppress effects by variation of the rope length have been...

Traditional container terminals usually use a horizontal yard layout, while automated vertical layout. The two types of layout perform differently in the vehicle travel routes, handling interface points vehicles and cranes, cranes routes. These differences result different indicators between such as utilization, average crane distance, overall terminal efficiency etc. This paper uses an analyti...

We consider planning of freight train classification at hump yards using integer programming. The problem involves the formation of departing freight trains from arriving trains subject to scheduling and capacity constraints. To increase yard capacity, we allow the temporary storage of early freight cars on specific mixed-usage tracks. The problem has previously been modeled using a direct inte...

In this paper we focus our attention on the operational decision problems related to the seaside area of maritime container terminals. In particular, we face the Quay Crane Assignment Problem (QCAP) and Quay Crane Scheduling Problem (QCSP) with an integrated simulation-optimization approach. A 0/1 MIP model is developed in order to determine the optimal assignment, on a shift basis, of QCs to b...

Perencanaan alokasi penumpukan petikemas memiliki pengaruh yang besar untuk meminimalkan waktu sandar kapal dan biaya operasional terminal. Model lapangan bertujuan mengurangi jarak tempuh truk dalam kegiatan muat menyeimbangkan jumlah pada setiap blok. Alokasi belum optimal di Terminal Petikemas Banjarmasin merupakan salah satu permasalahan harus diselesaikan. Dalam upaya penyelesaian tersebut...

This paper addresses the joint quay crane and truck scheduling problem at a container terminal, considering the coordination of the two types of equipment to reduce their idle time between performing two successive tasks. For the unidirectional flow problem with only inbound containers, in which trucks go back to quayside without carrying outbound containers, a mixed-integer linear programming ...

In this paper we address the design of an observer–controller for a three degrees of freedom overhead crane. We consider a linear model of the crane where the length of the suspending rope is a time–varying parameter. The set of models given by frozen values of the rope length can be reduced to a single time–invariant reference model using suitable time–scalings. We construct a controller and a...