9 research outputs found
Short-term rail rolling stock rostering and maintenance scheduling
This paper describes an optimization framework for railway rolling stock rostering and maintenance scheduling. A key problem in railway rostering planning requires covering a given set of services and maintenance works with limited rolling stock units. The problem is solved via a two-step approach that combines the scheduling tasks related to train services, short-term maintenance operations and empty runs. A commercial MIP solver is used for the development of a real-time decision support tool. A campaign of experiments on real world scenarios from Trenitalia (Italian train operating company) illustrates the improvement achievable by the approach when compared to the practical solution
Short-term rail rolling stock rostering and maintenance scheduling
This paper describes an optimization framework for railway rolling stock rostering and maintenance scheduling. A key problem in railway rostering planning requires covering a given set of services and maintenance works with limited rolling stock units. The problem is solved via a two-step approach that combines the scheduling tasks related to train services, short-term maintenance operations and empty runs. A commercial MIP solver is used for the development of a real-time decision support tool. A campaign of experiments on real-world scenarios from Trenitalia (Italian train operating company) illustrates the improvement achievable by the approach when compared to the practical solutions
The Human factor in the designing process of the Italian operational rules
The rail system can be divided into three main subsystems: (i) vehicles and equipment (hardware part), (ii) rules, procedures and organization (the software), (iii) operators (lifeware part). The common reliability analysis technique analyze the system from the point of view of technology and mechanical through well-established indicators (SIL safety integrity levels), while the aspect of the human performance is not yet fully defined, either by recognized indicators, nor by standardized and universally accepted methods. In order to allow a more rational design of new procedures in the rail sector, in this paper we propose a complete model of analysis of the human factor defined on the basis of a specific study of the literature, which led to the identification of available methods, choose the most reliable and build on them a complete methodology by introducing some innovative aspects. The model was adapted to the Italian railway sector and calibrated on the basis of three case studies selected from abnormal situations available in the certified databases of Italian Railway Network LC (FS Group, LC)
Speculative and Hedging Interaction Model in Oil and U.S. Dollar Markets—Phase Transition
On modulated multi-component NLS systems: Ermakov invariants and integrable symmetry reduction
Water Biogeochemistry of a Mangrove-Dominated Estuary Under a Semi-Arid Climate (New Caledonia)
Exopolysaccharide-Producing Microorganisms from Extreme Areas: Chemistry and Application
Libro de Proyectos Finales 2021 primer semestre
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