PRA (Probabilitic Risk Assessments) Archives

Not all risk assessments are created equal

The UNEP “Mine tailings storage: safety is no accident” report asks mining companies to make environmental and human safety a priority. To ensure mining companies meet that result in management actions and ground operations, a residual risk assessment should be performed. For clarity, residual risk assessments are those that intervene after mitigations or critical controls. However not all risk assessments are created equal so let’s explore the differences. What are the requirements for a good risk assessment? Risk assessments are…

Optimum Risk Estimates, ORE and Aerospace Applications

Optimum Risk Estimates, ORE and Aerospace Applications Smaller satellites are becoming frequent in the so called era of the “nano satellites”. Canada, for example, using an Indian launcher placed simultaneously into orbit, a little more than one year ago, four satellites. Indeed, the drive to miniaturize has been a recurring theme in the space industry for size and weight translate directly into the cost of getting a satellite off the ground (setting into orbit one tonne of equipment costs approximately…