• Title/Summary/Keyword: Container Terminals

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Evaluation of Operational Rules for Container Terminals Using Simulation Techniques (시뮬레이션 기법을 이용한 컨테이너터미널 운영규칙의 평가)

  • 장성용;이원영
    • Journal of Korea Port Economic Association
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    • v.18 no.1
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    • pp.27-41
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    • 2002
  • This paper deals with the development of a simulation model for the container terminal, which consists of 3 berths, 8 container cranes, and 16 yard blocks with each yard crane and 90 yard trucks in order to evaluate the various operational rules. The proposed operational rules are 3 ship-dispatching rules, 3 berth allocation rules, 2 crane allocation rules, 2 yard allocation rules, and 2 yard truck allocation rules. These rules are simulated using 4 performance measures, such as ship time in the terminal, ship time in the port, the number of ships processed, and the number of containers handled. The simulation result is as follows: 1) there is no difference among 3 ship-dispatching rules, 2) berth allocation rules depend on performance measures, 3) dynamic crane allocation is better than fixed policy, 4) pooling yard allocation is better than short distance yard allocation rules, and 5) fixed yard truck allocation by berth is a little better than pooling policy.

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A study on the location recognition method of containers in container terminal utilizing wireless sensor network (무선 센서 네트워크를 이용한 항만 터미널내 컨테이너 위치결정 방식에 관한 연구)

  • Choi, Dae-Woo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.3
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    • pp.725-732
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    • 2011
  • There are some trials to adopt the RFID/USN technologies at container terminals for effective terminal operations. In this paper, we propose a realtime location recognition method for stacked containers under the assumption that each container has a wireless sensor node to measure the RSSI values from neighbor nodes. We develope an RSSI based location algorithm with performance evaluations by RSSI measurement and application program implementation.

Optimizing Automated Stacking Crane Dispatching Strategy Using an MOEA for an Automated Container Terminal

  • Wu, Jiemin;Choe, Ri;Park, Tae-Jin;Ryu, Kwang-Ryel
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2011.06a
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    • pp.216-217
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    • 2011
  • The problem of automated stacking cranes (ASC) dispatching in container terminals is addressed in this paper. We propose a heuristic-based ASC dispatching approach which adopts multi-criteria decision strategy. By aggregating different criteria the proposed strategy can consider multiple aspects of the dispatching situation and make robust decision in various situations. A multi-objective evolutionary algorithm (MOEA) is adopted to tune the weights associated to each criteria to minimize both the quay crane delay and external truck delay. The proposed approach is validated by comparison with different dispatching heuristics and simulation results obtained confirms its effectiveness.

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Minimizing Empty Trips of Yard Trucks in Container Terminals by Dual Cycle Operations

  • Nguyen, Vu Duc;Kim, Kap-Hwan
    • Industrial Engineering and Management Systems
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    • v.9 no.1
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    • pp.28-40
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    • 2010
  • One of the most important objectives of the schedules in a container terminal is to minimize the ship operation time, which consists of discharging and loading operation times. Recently, dual cycling techniques have been used for improving terminal operations, especially for reducing the total empty trips of handling equipment. The main focus of this study is to reduce the empty trip times of yard trucks with minimum delays for ship operations. A heuristic algorithm, modified from a previous algorithm, is proposed to solve this problem. A simulation study is conducted to evaluate the effect of different types of discharging and loading schedules and different locating methods for discharging containers in terms of the performance of the system, including the percentage of the dual cycle operations of yard trucks.

A Study on the Optimization of Stowage Planning for Container Terminal Considered by Hatch (Hatch를 고려한 컨테이너 터미널 적재순서 최적화 연구)

  • Lee, Sang-Heon;Kim, Moon-Gyu;Ahn, Tae-Ho
    • IE interfaces
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    • v.19 no.4
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    • pp.270-280
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    • 2006
  • The shipping plan for an efficient augmentation of terminal is NP-hard problem which is subordinate to a shipping quantity. The load location problem and stowage planning problem are two important tactical problems for the efficient operations of container terminals. This paper is concerned with reduction of feasible region in constraints for stowage planning. After designing model which minimizes the number of shifting and the travel distance of the transfer crane, the simulated annealing algorithm is employed to search optimal solution quickly and accurately. In order to apply more realistic approach, the partial restriction through adding hatch is complemented to stowage planning decision problem applied in cluster. A variety of numerical experiments demonstrated that solutions by simulated annealing algorithm are useful and applicable in practice.

Dispatching Vehicles Considering Multi-lifts of Quay Cranes

  • Nguyen, Vu Duc;Kim, Kap-Hwan
    • Industrial Engineering and Management Systems
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    • v.9 no.2
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    • pp.178-194
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    • 2010
  • To improve the ship operation in automated container terminals, it is important to schedule different types of handling equipment to operate synchronously. For example, a vehicle with container receiving and lifting capabilities is used to transport containers from a storage yard to a vessel and vice versa, while a triple quay crane (QC) can handle up to three 40-ft containers simultaneously. This paper discusses the manner in which vehicles should be assigned to containers to support such multi-lifts of QCs by using information about the locations and times of deliveries. A mixed-integer programming model is introduced to optimally assign delivery tasks to vehicles. This model considers the constraint imposed by the limited buffer space under each QC. A procedure for converting buffer-space constraints into time window constraints and a heuristic algorithmfor overcoming the excessive computational time required for solving the mathematical model are suggested. A numerical experiment is conducted to compare the objective values and computational times of the heuristic algorithm with those of the optimizing method to evaluate the performance of the heuristic algorithm.

Developing a Standard Costing Model for a Container Terminal and Their Profitability Analysis case study of with reference to PECT and GCT (컨테이너부두의 표준원가모델 구축 및 운영수지분석)

  • 임종길;이태우
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 1999.10a
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    • pp.19-33
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    • 1999
  • This paper is concerned with developing a standard costing model based on the case study of PECT and GCT and analysing their profitability in order to improve operation efficiency and design business strategy. In doing so, the model can be a useful tool to analyze current calculation system of lease charge at the two terminals and to judge whether the level of lease charge currently applied to them is justifiable for their profitability. This paper also deals with break-even analysis of container terminal operating companies on the basis of the model and forecast of their profitability. On the top of that, it tries to look into the arguments and to suggest proposals for improving their profitability.

An Economic Analysis of Transportation Equipments at Container Terminals

  • Jung, Sung-Ho;Lim, Dong-Seok;Nam, Ki-Chan
    • Journal of Navigation and Port Research
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    • v.35 no.2
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    • pp.167-172
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    • 2011
  • The motivation of this study is the recent advancement of the Straddle Carrier (S/C). Previously Straddle Carrier (S/C) system was used focusing on container lift on/off due to its lower driving speed than that of (Y/T). Shuttle Carrier is evaluated as an upgraded Straddle Carrier. Recently, however, the driving speed of (S/C) has been improved to the level of Yard Tractor and Trailer systems (Y/T), which is 30Km per hour which makes (S/C) qualified as terminal in-yard transportation equipment. This paper, therefore, aims to evaluate three types of terminal in-yard transportation equipments such as (Y/T), (AGV) and the advanced (S/C) from economic perspective. The results revealed that by observing the total costs of equipment, (S/C) is a cheaper option than (Y/T) over 20 years, and than (AGV) over 6 years.

Customer Preference Analysis On Masan Container Terminal Using SP Method (SP기법을 이용한 마산항 컨테이너 터미널의 고객선호도 분석)

  • Lee Jae-Won;Yoo Seung-Yeul
    • Journal of Navigation and Port Research
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    • v.30 no.1 s.107
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    • pp.91-96
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    • 2006
  • Recently, the development construction of New Masan Container Terminal (1-1 Phase) with private investment would be set for opening in the 2011 year in Masan Port, Korea However, as new container terminals of the Pusan New Port and 'the New Ulsan Container Terminal neighboring Masan Port will be also planned to open around the time, the strategy establishment for Masan Port is required for a keen competition among these ports. To provide it with strategic points, we applied SP model used for customers' behavior method to analyze customer's preference changes with the shifts of the ports' conditions for customers.

A Study on The Plan of Terminal by RFID (RFID를 이용한 터미널 운영의 효율성에 관한 연구)

  • Kim, Sung-Soo;Lee, Myoun-Soo;Song, Yong-Seok;Nam, Ki-Chan;Kwak, Kyu-Suk
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • v.29 no.1
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    • pp.487-492
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    • 2005
  • Domestic Container Terminals have a problem of Yard Planning to load containers at terminal storage because of the narrow yard area, incorrectness of container information and late transmission of information. So this paper has an object that is a plan to use the gate and the storage of container terminal. After the information of vehicle and container is collected in advance by RFID(Radio Frequence Identification) doing active research now.

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