The Rockfall Risk (R2) is a tool to calculate the risk due to rockfall and their consequences. Event Tree Analysis – Full Rock Failure Risk Calculation using Event Tree Analysis (ETA) The beta version in calculating the risk of rockfall 1. The probability hazard (P(H)) P(Kinematic failure) => A: P(Kinetic failure) => B: Probability of rock failure occurring P(H) = A × B, or enter manually: Manual input mode if you only have kinematic or kinetic (LEM and Numerical modelling) data 2. The probability the rock reaching the vehicles (P(S|H)) P(S|H) can be calculated from multiple rockfall sources. Select the number of rockfall sources (<20 sources) Number of rockfall sources for P(S|H): Calculated P(S|H) => Yes and No: 3. Probability of vehicles being present on the road (P(T|S)) The length of hazard zone – Sl (m): The length of vehicle – lv (m): Vehicle speed – v (km/h): Average Annual Daily Traffic (AADT): Calculated P(T|S) => Yes and No: Auto-calculated from traffic parameters 4. Probability of injury to occupants (P(V)) P(V) => Yes and No: Compute the Risk Event Tree Diagram Download the results as a CSV file Compute New Risk Share this:FacebookXLike this:Like Loading...
