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Start Over Descriptor "tramp shipping" Publisher elsevier
3 results on '"tramp shipping"'

1. Fifty years on maritime transportation

Author

Marielle Christiansen, Kjetil Fagerholt, and David Pisinger

Subjects
Maritime transportation, Ship routing, Maritime inventory routing, Liner shipping, Tramp shipping, Network design, Transportation engineering, TA1001-1280
Abstract

This paper gives a detailed overview of the last 50 years of research in maritime transportation, with special focus on operations research techniques applied to the seaside operations. We describe the evolution in industrial, tramp and liner shipping, identify the driving trends, and discuss future challenges.

Published
2025
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2. The effects of waiting times on the bunkering decision for tramp ships

Author

Gabriel FUENTES, Stein W. WALLACE, and Roar ADLAND

Subjects
Bunker management, Tramp shipping, Bunkering ports waiting times, Port efficiency, Shipment of goods. Delivery of goods, HF5761-5780
Abstract

This study explores the influence of uncertain waiting times together with uncertain fuel prices, in the selection of bunker fuel stops for a shipowner engaged in tramp shipping. We analyze the stochastic bunkering waiting times in the bunkering optimization problem using scenarios constructed from vessels' Automatic Information System (AIS) records and test their relevance to the bunkering decision. Our findings highlight the tradeoff between port efficiency, as characterized by waiting times, and the economic advantages of purchasing bunkers from cheaper port options and finishing the voyage in higher-priced bunker regions. Although the absence of waiting time would have produced similar results in our empirical setup, introducing waiting times altered the dynamics, making a price-attractive port like Piraeus not as attractive when risk-aversion is modeled, particularly given the risk of prolonged waiting.

Published
2024
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3. A MILP-based column generation strategy for managing large-scale maritime distribution problems

Author

Carlos A. Méndez, Rodolfo Gabriel Dondo, and Mariana Evangelina Coccola

Subjects
Engineering, Operations research, business.industry, Ingeniería de Procesos Químicos, General Chemical Engineering, Column generation, MILP slave formulation, INGENIERÍAS Y TECNOLOGÍAS, Ship routing and scheduling, Computer Science Applications, Ingeniería Química, Tramp shipping, business, Humanities
Abstract

This paper presents a novel column generation algorithm for managing the logistics activities performed by a fleet of multi-parcel chemical tankers. In our procedure, for providing elementary routes, the conventional dynamic programming routes-generator is replaced by an efficient continuous-time MILP-slave problem. The performance of the decomposition method is evaluated by solving several examples dealing with the operations of a shipping company operating in the Asia Pacific Region. Computational results show that the proposed approach outperforms a pure exact optimization model and an alternative heuristic solution method reported in the literature. Fil: Coccola, Mariana Evangelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina Fil: Dondo, Rodolfo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina Fil: Mendez, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina

Published
2015

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