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...

As the “first service station” for ships in the whole port logistics system, the tugboat operation system is one of the most important systems in port logistics. This paper formulated the tugboat scheduling problem as a multiprocessor task scheduling problem MTSP after analyzing the characteristics of tugboat operation. The model considers factors of multianchorage bases, different operation mo...

We study the problems associated with allocating berths for containerships in the port of Seville. It is the only inland port in Spain and it is located on the Guadalquivir River. This paper addresses the berth allocation planning problems using simulation and optimisation with Arena software. We propose a mathematical model and develop a heuristic procedure based on genetic algorithm to solve ...

Tight cooperative control of mobile entities and resources is essential to enhance the efficiency and effectiveness of terminal operation. The paper aims at developing an integrated simulation model which integrates the traffic flow control of internal tractors and the berth operation of a container terminal for evaluation of control policies adopted. Terminal operation is modeled as a discrete...

One of the primary modes for worldwide trade of goods is maritime transport, which is exposed to rapid growth. In order to handle the increase of the traffic in ports, optimization of port operations has been studied and implemented in the past. In container terminals, significant amount of work has been done in the field of large scale optimization. In published literature, the main focus lies...

We consider the problem of allocating berth positions for vessels in tidal bulk port terminals. A berth is defined as a specific location alongside a quay where a ship loader is available for loading or unloading vessels, accommodating only one vessel at a time. In tidal ports, draft conditions depend on high tide conditions, since available depth at low tide is not adequate for the movement of...

Seaport container terminals are an important part of the logistics systems in international trades. This paper investigates the relationship between quay cranes, yard machines and container storage locations in a multi-berth and multi-ship environment. The aims are to develop a model for improving the operation efficiency of the seaports and to develop an analytical tool for yard operation plan...