Negligible Risk for European Railway Risk Assessments

摘要

The European Railway Agency (ERA) proposes a risk management process for substantial changes of the railway system. The suggested risk assessment framework states, that no risk analysis has to be carried out for system hazards with a so called negligible risk. However, the ERA recommendations do not give detailed information about what negligible risk means quantitatively or how it can be derived. The following paper discusses different approaches on negligible risk.