Supervised dynamic probabilistic risk assessment: Review and comparison of methods

Renan G. Maidana, Tarannom Parhizkar, Alojz Gomola, Ingrid B. Utne and Ali Mosleh

Reliability Engineering and System Safety, 2023, vol. 230, issue C

Abstract: With the adoption of autonomous systems in higher levels of autonomy, large-scale, complex and dynamic systems are becoming commonplace. Ensuring safe operation of safety-critical autonomous systems is paramount, typically approached through risk assessment. Two challenges associated with using traditional risk assessment methods for complex systems are that these systems are dynamic (i.e., their state changes over time) and interactions between subsystems and components may lead to unpredictable behaviors and impact on the surrounding environment and other systems in the close vicinity. Dynamic probabilistic risk assessment (DPRA) methods are possible solutions to these challenges, where the dynamic and uncertain nature of the systems is considered. The methods, however, usually face combinatorial explosion related to hazards and scenarios, which make their practical application prohibitive; in the DPRA literature, this problem is known as the state explosion problem. In this paper, we present a literature review on methods for DPRA, with focus on the existing solutions to the state explosion problem. Specifically, we analyze and compare these solutions in terms of computational time complexity, traceability and state–space coverage. Finally, we discuss the comparisons and propose potential paths to improved solutions for the state explosion problem based on the knowledge gained in the study.

Keywords: Dynamic probabilistic risk assessment; State explosion; Supervised DPRA; Literature review (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (10)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0951832022005063
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:230:y:2023:i:c:s0951832022005063

DOI: 10.1016/j.ress.2022.108889

Access Statistics for this article

Reliability Engineering and System Safety is currently edited by Carlos Guedes Soares

More articles in Reliability Engineering and System Safety from Elsevier
Bibliographic data for series maintained by Catherine Liu ().