In 2012, the four-year European Commission Projec,t "MODSAFE", presented its final results. Twenty-two Urban Guided Transport Operators (London Underground, RATP Paris, Metro Madrid etc.), System Suppliers (Alstom, Bombardier, Ansaldo) and other institutions (TU Dresden, Budapest University, TÜV Rheinland, UITP, UNIFE) had established a Safety and Security Model for Urban Guided Transport Systems including Metros, Lightrails, Tramways and APMs operated in four Grades of Automation, from Line of Sight driving to completely unmanned operations. The basis of the Safety Model is a complex System Hazards and Risk Analysis, including over 1.000 entries and containing all train control-related potential hazards, but also hazards related to environmental effects, operations and degraded modes situations. In order to control and cover the hazards, a train control-oriented MODSafe Functional Model had been agreed, including some 70 detailed functions in close coherence with the IEC62290 standard. Since the safety-related functions are built up by physical entities, a MODSafe Object Model has been researched and agreed, containing a list of generic constituents of train control architectures. In order to derive adequate safety requirements, two different safety requirement allocation processes had been performed for every individual function and the result checked for consistency. The Safety Requirements are ultimately linked to a Tolerable Hazard Rate (THR) and presented as a Safety Integrity Level (SIL) for every function. As a final result, the Safety Requirements/Safety Attributes are allocated to a spreadsheet between the safety-related objects and the safety-related function for every Grade of Automation (GOA) 0-4. The paper presents the rationale of the project and its results, as well as an outlook of the applicability and further possible works.


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    Titel :

    MODSAFE—A Detailed Safety Model for Urban Guided Transport Systems


    Beteiligte:
    Schuette, Joerg (Autor:in) / Scholz, Sven (Autor:in)

    Kongress:

    14th International Conference on Automated People Movers and Automated Transit Systems ; 2013 ; Phoenix, Arizona



    Erscheinungsdatum :

    2013-04-29




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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