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MacChi M.,Polytechnic of Milan | Garetti M.,Polytechnic of Milan | Centrone D.,Polytechnic of Milan | Fumagalli L.,Polytechnic of Milan | Piero Pavirani G.,RFI Rete Ferroviaria Italiana SpA
Reliability Engineering and System Safety | Year: 2012

Railway infrastructure maintenance plays a crucial role for rail transport. It aims at guaranteeing safety of operations and availability of railway tracks and related equipment for traffic regulation. Moreover, it is one major cost for rail transport operations. Thus, the increased competition in traffic market is asking for maintenance improvement, aiming at the reduction of maintenance expenditures while keeping the safety of operations. This issue is addressed by the methodology presented in the paper. The first step of the methodology consists of a family-based approach for the equipment reliability analysis; its purpose is the identification of families of railway items which can be given the same reliability targets. The second step builds the reliability model of the railway system for identifying the most critical items, given a required service level for the transportation system. The two methods have been implemented and tested in practical case studies, in the context of Rete Ferroviaria Italiana, the Italian public limited company for railway transportation. © 2012 Elsevier Ltd. All rights reserved.

Favo F.,RFI Rete Ferroviaria Italiana SpA | Bocchetti G.,Ansaldo Energia | Mazzino N.,Ansaldo Energia | Lancia A.,Ansaldo Energia
International Conference on Electrical Systems for Aircraft, Railway and Ship Propulsion, ESARS 2010 | Year: 2010

An overview is given of the technology and the performance of "Train Conformity Check System". The system provides a modular set of defect detection functions for rail vehicles, including the detection of three-dimensional profile limits violations and of overheated components. Other available defect detection systems can be integrated to identify and arrest trains with hazardous defects, to support rolling stock maintenance planning and to increase railway lines availability. ©2010 IEEE.

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