A multi-objective mathematical model to select fleets and maritime routes in short sea shipping: a case study in Chile
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ORIGINAL ARTICLE
A multi‑objective mathematical model to select fleets and maritime routes in short sea shipping: a case study in Chile Alba Martínez‑López1 Received: 10 January 2020 / Accepted: 27 July 2020 © The Japan Society of Naval Architects and Ocean Engineers (JASNAOE) 2020
Abstract This paper proposes a mathematical model for intermodal chains with seaborne transport, in which the optimization of a multi-objective model enables conflicting objectives to be handled simultaneously. Through the assessment of ‘door-to-door’ transport in terms of costs, time, and environmental impact, the most suitable maritime route and the optimized fleet are jointly proposed to maximize the opportunities for success of intermodal chains versus trucking. The NSGA-II algorithm is applied to resolve the model. The Pareto fronts obtained not only permit decision-making in the short-term but also enable long-term strategies to be defined according to the behaviour of these frontiers when sensitivity analysis is undertaken. A real-life case in Chile is studied to test the usefulness of the model. Aside from identifying the most suitable Motorway of the Sea with its optimized fleet for Chile, the application case has provided several significant findings to promote the intermodal option regardless of its location. Keywords Short sea shipping · Motorways of the sea · Intermodal chains · Multi-objective optimization · Analysis of sensitivity · Decision support tool
1 Introduction Due to its sustainability, Short Sea Shipping (SSS) has attracted a special attention as one of the most interesting truck hauls for intermodal chains (see Fig. 1). The search for alternatives to road congestion has boosted transport policies based on the idea of intermodality as a sustainable solution for ‘door-to-door’ transport. Proof of this explicit support is the evolution of the SSS concept from 2001 towards motorways of the sea (MoS). In the European Union, it is defines as: SSS services along with the intermodal services and the ports that are affected by the establishment of the intermodal chains (White Paper: European Transport Policy for 2010). Furthermore, Canada and the United States signed a Memorandum of Cooperation on Sharing Short Sea Shipping Information and Experience in 2003 [1]. * Alba Martínez‑López [email protected] 1
Naval Architecture Unit, Department of Mechanical Engineering, University of Las Palmas de Gran Canaria, Escuela de Ingenierias Industriales Y Civiles (Campus de Tafira), Canary Islands, CP:35017 Las Palmas de Gran Canaria, Spain
The SSS concept integrated into intermodal chains (MoS) has been widely studied across different economic regions over the last decade and from different perspectives: in South America [2], Brooks, Mary and Wilmsmeier [3], North America [4], Australia [5], Asia [6, 7], among others. Consequently, far from being a regional term, MoS are currently an offshore concept and have been widely studied. Despite this political support, a broad consensus exists about the limited success of t
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