MTA - Risk analysis process

The choices are: • Use evaluation forms – The analysis team uses wizards to evaluate the probability of failure, economic consequences, health and safety consequences, environmental consequences, and confidence factors. APM then calculates the risk and shows it in the risk matrix. This process is commonly used with RBI analyses. • Use weighted severity and relative risk – The analyst assesses the severity of economic, health and safety, and environmental consequences, assigning a number (weighting) to each factor. The analyst also enters the probability of failure and the confidence factor. APM then calculates the relative risk and shows it in the risk matrix. • Not performed – No risk analysis is performed.

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