The apportionment of railway safety targets is a key issue to develop a common safety management in the European railway system. In this paper, the authors develop a generic approach based on the Functional Hazard Analysis (FHA), to analyse the safety of railway systems for a unified European network and to comply with the Common Safety Targets (CSTs) required by the European railway safety directive. The authors suggest to combine the FHA technique with the functional railway architecture, developed by the AEIF (European Association for Railway Interoperability), to allocate the safety targets to the railway functions. A brief description of ongoing activities regarding Rail Optimisation Safety Analysis (ROSA) project at European level will be covered. The third section will be dedicated to the functional railway breakdown and to the Structured Analysis and Design Technique (SADT) description to analyse the completeness and the consistency of the railway architecture. In the fourth section, the use of FHA to allocate CSTs will be presented and illustrated by functional risk apportionment methodology.
Functional hazards analysis for railway safety
2007
10 Seiten, 5 Bilder, 3 Tabellen, 14 Quellen
Conference paper
English
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