9 research outputs found

    Short-term rail rolling stock rostering and maintenance scheduling

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    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

    Get PDF
    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

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    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)

    Libro de Proyectos Finales 2021 primer semestre

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    PregradoIngeniero CivilIngeniero de SistemasIngeniero ElectricistaIngeniero ElectrónicoIngeniero IndustrialIngeniero Mecánic
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