نتایج جستجو برای: quay crane scheduling

تعداد نتایج: 72217  

Journal: :Transportation Science 2013
Ilaria Vacca Matteo Salani Michel Bierlaire

In this paper we study the simultaneous optimization of berth allocation and quay crane assignment in seaport container terminals. We propose a model based on an exponential number of variables that is solved via column generation. An exact branch-and-price algorithm is implemented to produce optimal integer solutions to the problem. In particular, we present several accelerating techniques for...

2013
Daofang Chang Youfang Huang Wei Yan Yu Wang

The efficiency of container handling has got great improvement with the usage of the 40ft quay crane and the twin 40 ft yard crane. Reasonable bay planning strategies is necessary to reach the high handing efficiency by the twin 40 ft yard crane. This paper studies both bay planning and row planning for yard bay allocation. The models of bay planning and row planning are created, and the discre...

Journal: :Rairo-operations Research 2021

The quay crane scheduling problem (QCSP) is a global and all ports around the world seek to solve it, get an acceptable time of unloading containers from vessels or loading therefore reducing docking in terminal. This paper proposes three solutions for QCSP port Tripoli-Lebanon, two exact methods which are mixed integer linear programming dynamic algorithm, obtain optimal solution one heuristic...

2013
Junliang He Youfang Huang Daofang Chang Weimin Zhang

Both of berth allocation and quay crane assignment are one of the most complex parts in container terminal operations, which significantly affect the operational efficiency, energy consumption and operational cost of the entire container terminal. Therefore, it is necessary to develop an efficient strategy for integrated berth allocation and quay crane assignment (BACP) from the perspective of ...

Journal: :J. Intelligent Manufacturing 2001
Luca Maria Gambardella Monaldo Mastrolilli Andrea Emilio Rizzoli Marco Zaffalon

A solution to the problems of resource allocation and scheduling of loading and unloading operations in a container terminal is presented. The two problems are formulated and solved hierarchically. First, the solution of the resource allocation problem returns, over a number of work shifts, a set of quay cranes used to load and unload containers from the moored ships and the set of yard cranes ...

Journal: :journal of industrial engineering, international 2010
h javanshir s.r seyedalizadeh ganji

yard crane is an important resource in container terminals. efficient utilization of the yard crane significantly improves the productivity and the profitability of the container terminal. this paper presents a mixed integer programming model for the yard crane scheduling problem with non- interference constraint that is nphard in nature. in other words, one of the most important constraints in...

Journal: :Sustainability 2023

As container ports become increasingly important to the global supply chain, a growing number of are improving their competencies by consolidating multiple terminal resources internally. In addition, in context energy conservation and emission reduction, measure competitiveness not only terms size, throughput service level, but also low consumption pollution. Therefore, nonlinear mixed-integer ...

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