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Singgih, Ivan Kristianto,Hong, Soondo,Kim, Kap Hwan Korean Institute of Industrial Engineers 2016 Industrial Engineeering & Management Systems Vol.15 No.1
A design method of the network for automated transporters mounted on rails is addressed for automated container terminals. In the network design, the flow directions of some path segments as well as routes of transporters for each flow requirement must be determined, while the total transportation and waiting times are minimized. This study considers, for the design of the network, the waiting times of the transporters during the travel on path segments, intersections, transfer points below the quay crane (QC), and transfer points at the storage yard. An algorithm, which is the combination of a modified Dijkstra's algorithm for finding the shortest time path and a queuing theory for calculating the waiting times during the travel, is proposed. The proposed algorithm can solve the problem in a short time, which can be used in practice. Numerical experiments showed that the proposed algorithm gives solutions better than several simple rules. It was also shown that the proposed algorithm provides satisfactory solutions in a reasonable time with only average 7.22% gap in its travel time from those by a genetic algorithm which needs too long computational time. The performance of the algorithm is tested and analyzed for various parameters.
Flexible Load Sequencing in Container Terminals
Ivan Kristianto Singgih(싱기 이반 크리스티안토),Kap Hwan Kim(김갑환) 한국SCM학회 2016 한국SCM학회지 Vol.16 No.2
In this study, a method for estimating the quay crane (QC) operational time is used to determine the best loading sequence for containers. Detail parameters such as the distances to be traveled by the QC spreader in the horizontal and vertical axes, acceleration and deceleration rates, maximum speed of the spreader and hoist are considered. The objectives of this study include minimizing the total QC operational time and the number of relocations that occur in the yard during the container retrieval process. A tree search-based algorithm is used to find the best loading sequence. Numerical experiments are performed to find the acceptable width of the tree search, analyze the effect of each objective’s weight settings, and evaluate the proposed approach.
Ivan Kristianto Singgih,Soondo Hong,Kap Hwan Kim 대한산업공학회 2016 Industrial Engineeering & Management Systems Vol.15 No.1
A design method of the network for automated transporters mounted on rails is addressed for automated container terminals. In the network design, the flow directions of some path segments as well as routes of transporters for each flow requirement must be determined, while the total transportation and waiting times are minimized. This study considers, for the design of the network, the waiting times of the transporters during the travel on path segments, intersections, transfer points below the quay crane (QC), and transfer points at the storage yard. An algorithm, which is the combination of a modified Dijkstra’s algorithm for finding the shortest time path and a queuing theory for calculating the waiting times during the travel, is proposed. The proposed algorithm can solve the problem in a short time, which can be used in practice. Numerical experiments showed that the proposed algorithm gives solutions better than several simple rules. It was also shown that the proposed algorithm provides satisfactory solutions in a reasonable time with only average 7.22% gap in its travel time from those by a genetic algorithm which needs too long computational time. The performance of the algorithm is tested and analyzed for various parameters.
Architectural Design of Terminal Operating System for a Container Terminal Based on a New Concept
Ivan Kristianto Singgih,Xuefeng Jin,Soondo Hong,Kap Hwan Kim 대한산업공학회 2016 Industrial Engineeering & Management Systems Vol.15 No.3
Automation ensures accurate and well-organized container transportation in container terminals. This paper addresses operational issues such as equipment scheduling and the coordination between various pieces of equipment in a rail-based automated container terminal. Containers are relayed using multiple types of equipment from road trucks to a vessel and vice versa. Therefore, handshaking is required during a container transfer between different pieces of equipment. Synchronization between the schedules of all the equipment is important to reduce equipment waiting times and the time required for transporting containers, which results in a short turnaround time for a vessel. This paper proposes an integrated control system with the objective of synchronizing the operations of different types of equipment, provides a list of decisions to be made by the control module of each type of equipment, and shows all the required information transfers between control modules. A scheme for the integrated scheduling of multiple types of equipment is proposed. The decisions made by each control module in a real-time fashion are listed with detailed explanations, and the information transfer between managers in a real-time situation at the proposed terminal is described.
Architectural Design of Terminal Operating System for a Container Terminal Based on a New Concept
Singgih, Ivan Kristianto,Jin, Xuefeng,Hong, Soondo,Kim, Kap Hwan Korean Institute of Industrial Engineers 2016 Industrial Engineeering & Management Systems Vol.15 No.3
Automation ensures accurate and well-organized container transportation in container terminals. This paper addresses operational issues such as equipment scheduling and the coordination between various pieces of equipment in a rail-based automated container terminal. Containers are relayed using multiple types of equipment from road trucks to a vessel and vice versa. Therefore, handshaking is required during a container transfer between different pieces of equipment. Synchronization between the schedules of all the equipment is important to reduce equipment waiting times and the time required for transporting containers, which results in a short turnaround time for a vessel. This paper proposes an integrated control system with the objective of synchronizing the operations of different types of equipment, provides a list of decisions to be made by the control module of each type of equipment, and shows all the required information transfers between control modules. A scheme for the integrated scheduling of multiple types of equipment is proposed. The decisions made by each control module in a real-time fashion are listed with detailed explanations, and the information transfer between managers in a real-time situation at the proposed terminal is described.