Dynamic Risk Analysis in the Chemical and Petroleum Industry

Chapter 8

Comparison and Complementarity between Reactive and Proactive Approaches

G.E. Scarponi¹,  and N. Paltrinieri^{2,3     1}University of Bologna, Bologna, Italy     ²Norwegian University of Science and Technology (NTNU), Trondheim, Norway     ³SINTEF Technology and Society, Trondheim, Norway

Abstract

Reactive and proactive approaches aim to provide dynamic assessment of the overall system risk by following partially different paths. The Bayesian inference-based dynamic risk assessment monitors and processes data from past incidents and near misses. This allows for update of safety barrier failure probabilities in a reactive way. The risk barometer, however, dynamically assesses health of safety barriers on the basis of a wide range of indicators. ...