Safety Levels Apportionment in Railway System
Meriem Rafrafi/El Miloudi El Koursi/Thomas Bourdeaud'Huy*
International Journal of Railway, vol. 1, no. 4, pp.157-168, 2008
Abstract : The creation of a single European rail transport market it is important to increase confidence between the actors on the
market and between member states who shall ensure that railway safety is generally maintained and, where reasonably
practicable, continuously improved. For this purpose the European railway safety directive introduces a mechanism to
adopt a Common Safety Targets (CST) expressed in risk acceptance criteria for individuals and for society. This paper
focuses on the apportionment of safety targets for European railway system. We 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 CSTs required by the European railway Safety Directive. We suggest to combine the FHA technique with
the functional railway architecture to allocate the safety targets to the railway functions.
Keyword : Risk Management, Safety Targets, Railway, Interoperability |