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According to UNI 11337, Building Information Modeling (BIM) is the process of creating and managing information about a building throughout its life cycle. One of the fundamental results of this process is a multidimensional model, i.e. one that goes beyond the three-dimensional description and offers a complete perspective of the built work. This model is developed based on information that is collaboratively entered and updated during the main phases of the project. In this paper, we present the BIM model of the Gradec-Sveti Ivan Žabno railway line developed within the international cooperation activities between the Universities of Naples Federico II and Zagreb to highlight the advantages and limitations of the methodology applied to a real railway project. [ABSTRACT FROM AUTHOR]

This paper explores the political-administrative genesis of one of the major Italian public infrastructures of the twentieth century: Naples metro Line 1. It is highlighted in the period of time, the project has suffered, and at the same time, the choices of the different "political seasons" that the third city of Italy has undergone. From the beginning of the national railway system, which has become the best practice in terms of public transport, Line 1 has become, year after year, the heart of the Neapolitan and regional transport system, gaining international notoriety thanks to the so-called "Art Stations" and arriving today to transport over 45 million passengers / year. [ABSTRACT FROM AUTHOR]

This paper describes an optimization framework for rolling stock rostering and maintenance scheduling at a busy workshop. A new mixed-integer linear-programming formulation is provided for the maintenance scheduling problem faced by Trenitalia (train operating company) managers, with input data taken from the rolling stock rostering plan. The computational results are carried out on a Trenitalia's maintenance site located in Naples. The solutions computed via a commercial MILP solver are compared with practical solutions. A relevant cost reduction is possible by using the proposed framework, involving both rostering and maintenance scheduling. We also show how the proposed method can be used as an effective tool to absorb real-time timetable perturbations while respecting the agreed level of service. [ABSTRACT FROM AUTHOR]