Integrating safety and security resources to protect chemical industrial parks from man-made domino effects

A dynamic graph approach

Journal article (2019)

Authors

C. Chen Safety and Security Science - TPM
G.L.L.M.E. Reniers Safety and Security Science - TPM , Katholieke Universiteit Leuven, Universiteit Antwerpen
N. Khakzad Rostami Safety and Security Science - TPM
Research Group
Safety and Security Science (TPM) (TU Delft)
Dynamic graphs Security risk management Security measures Safety barriers Domino effects
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Published Date

2019

Language

English

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Faculty

Technology, Policy and Management

Department

Values Technology and Innovation

Research Group

Safety and Security Science

Abstract

Chemical industrial parks, being critical infrastructures, are susceptible to domino effects triggered by intentional attacks. Previous research on security risk management has mainly focused on using security measures to prevent intentional attacks, neglecting the effects of safety barriers. Safety barriers are able to reduce the potential consequences and decrease the attractiveness of chemical industrial parks to terrorists who aim to maximize the damage. From a systematic perspective, the potential consequence of intentional attacks is defined as the expected loss which is the sum-product of damage probability and consequence of installations. A consequence-based method including a Dynamic Vulnerability Assessment Graph (DVAG) model is proposed to integrate safety and security resources for reducing the risk of intentional attacks. The DVAG model is developed based on dynamic graphs, considering the effects of security measures, safety barriers, and emergency response. This method can assess the consequences and damage probabilities of possible intentional attacks so as to mitigate the risk via evaluation and allocation of security measures and safety barriers with fast computation speed.