Driven by green port initiatives, container terminal operators have been substituting environmentally and economically inefficient diesel-powered rubber-tyred gantry cranes (RTGs) with new or retrofitted electric ones. Such an investment is closely related to operational activities, the process of retrofitting should be carried out under premise satisfying yard handling requirement. An integer ...

In a normal port operation, yard cranes are used to move containers from one location to another for import, export or relocation purposes. In order to locate the positions of containers, a database is set up in the office server to store the current locations of existing containers within the yard. Whenever the Rubber Tyred Gantry (RTG) crane operator moves a container around, the database has...

Container stacking and reshuffling are important issues in the operations management of container terminals. Minimizing the number of reshuffles can increase productivity of the yard cranes and the terminal efficiency. In this research, we improve the existing static reshuffling model, develop five effective heuristics and analyze the performance of these algorithms. A discrete-event simulation...

Due to the recent increase in global trade of finished consumer goods the worldwide container traffic has grown dramatically. As a result, new terminals opened and existing terminals face a much higher container turnover than before. In order to meet these challenges, one of the biggest container terminals in Turkey seeks to reconsider its terminal operations and to improve its overall logistic...

This paper describes an integrated approach for crane automation at the Kwangyang steel works, POSCO. Unmanned cranes are composed of several technologies,which include anti-sway control, precision position control, optimal trajectory computation, and coil shape recognition. Crane position while traveling and the traverse axis are controlled by PID position controllers. In order to prevent sway...

Transshipment yards, where gantry cranes allow for an e cient transshipment of containers between di erent freight trains, are important entities in modern railway systems and facilitate the general shift from point-to-point transport to hub-and-spoke railway systems. Modern rail-rail transshipment yards accelerate container handling, so that multiple smaller trains with equal destination can b...

Abstract Background In 2017, smaller container ports handled approximately 22% of total containerized cargo. Nowadays liner operators are calling on those with larger ships and demanding fast efficient turnaround the in port. This is possible only if berth has right capacities, working properly achieves a good productivity level. Methodology Productivity level does not depend quay crane capacit...

Maritime container terminals are facilities where cargo containers are transshipped between ships and land vehicles. These terminals involve a large number of complex and combinatorial problems. One of the important problems is related to the Container Stacking Problem. A container stack is a type of temporary store where containers await further transport by truck, train or vessel. The main ef...

A container terminal is a facility where cargo containers are transshipped between different transport vehicles. We focus our attention on the transshipment between vessels and land vehicles, in which case the terminal is described as a maritime container terminal. In these container terminals, many combinatorial related problems appear and the solution of one of the problems may affect to the ...

Container stacking and reshuffling are important issues in the operations management of container terminals. Minimizing the number of reshuffles can increase productivity of the yard cranes and the terminal efficiency. In this research, we improve the existing static reshuffling model, develop five effective heuristics and analyze the performance of these algorithms. A discrete-event simulation...