For a global railway signaling manufacturer we delivered an effective independent safety assessment of their European products Challenge A major signaling manufacturer was developing generic ERTMS (European Rail Traffic Management System) products. These products form the core of those systems to be delivered to meet the specific application needs of a variety of European clients, compatible with the European UNISIG specifications. The manufacturer required an effective, yet pragmatic, independent safety (ISA) assessment of the development of such products. Approach Arthur D. Little has developed its own unique approach to ISA projects. The approach is always split into the following phases: Examine the management system and processes in place (understand), and analyze them for weaknesses

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