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- W2185912089 abstract "This work attempts firstly to identify the influence of uncontrollable variables (road cost, truck speed, speed of cargo handling systems, and the relative weight of possible origins/destinations for transport networks) on the selection of optimized fleets for sea motorways, integrated in multimodal chains. To achieve this aim, the impact of modifications of these variables on the selection of the most suitable fleet, considering the maximization of success opportunities for the multimodal transport against the road, was analysed. Thus, the multi-objective algorithm NSGA-II was applied to a mathematical model, able to integrate the fleet and the route, evaluating, in terms of time and cost simultaneously, the influence of uncontrollable inputs on the competitiveness of multimodal chains, covered by optimized fleets. Once the decisions about the fleet and the route have been adopted for an initial scenario, the second aim of the paper consists on assessing the risk assumed with their operation in different scenarios. This analysis allows to obtaining the range of values for uncontrollable variables, which ensure the competitiveness of multimodal transport. Additionally, it is possible to test different sensitivities of multimodal chains articulated through optimized fleets, in comparison to those covered by commercial fleets. This study was applied to a particular case: the sensitization of the most suitable fleets for the sea motorway St Nazaire-Vigo. The results show that the most influential variable is the truck speed. Even operating with optimized fleets, the competitiveness of multimodal chains" @default.
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- W2185912089 date "2013-01-01" @default.
- W2185912089 modified "2023-09-27" @default.
- W2185912089 title "The Sensitization of optimization models of fleets for sea" @default.
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