Academic Journal
Hazard analysis of an Automated Lane Keeping System using Systems-Theoretic Process Analysis.
| Τίτλος: | Hazard analysis of an Automated Lane Keeping System using Systems-Theoretic Process Analysis. |
|---|---|
| Συγγραφείς: | Elizebeth MJ; WMG, University of Warwick, 6 Lord Bhattacharyya Way, Coventry, CV4 7AL, United Kingdom. Electronic address: Mariat.James-Elizebeth@warwick.ac.uk., Khastgir S; WMG, University of Warwick, 6 Lord Bhattacharyya Way, Coventry, CV4 7AL, United Kingdom., Jennings P; WMG, University of Warwick, 6 Lord Bhattacharyya Way, Coventry, CV4 7AL, United Kingdom. |
| Πηγή: | Accident; analysis and prevention [Accid Anal Prev] 2025 Oct; Vol. 221, pp. 108171. Date of Electronic Publication: 2025 Aug 13. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Pergamon Press Country of Publication: England NLM ID: 1254476 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-2057 (Electronic) Linking ISSN: 00014575 NLM ISO Abbreviation: Accid Anal Prev Subsets: MEDLINE |
| Imprint Name(s): | Publication: Oxford : Pergamon Press Original Publication: [New York, Pergamon Press] |
| Ιατρικοί όροι (MeSH): | Accidents, Traffic*/prevention & control , Systems Analysis* , Automobile Driving* , Systems Theory* , Automation* , Automobiles*, Humans ; Algorithms ; Man-Machine Systems ; Software |
| Περίληψη: | Systems-Theoretic Process Analysis (STPA) is an effective safety analysis technique that identifies how unsafe interactions among components within a complex system may result in accidents. This study aimed to evaluate the efficacy of STPA by applying it to an Automated Lane Keeping System (ALKS). The goal was to explore areas of potential risk in the system and make recommendations on how overall system safety could be improved. The STPA analysis of ALKS identified 87 Unsafe Control Actions (UCAs) based on interactions between the various components. An analysis of the UCAs revealed 537 causal factors (CFs), including software faults like flawed control algorithms and conflicting controls, sensor performance limitations, specification issues such as missing feedback signals, and errors in human-machine interaction, such as excessive dependence on the ALKS and drivers having incorrect expectations regarding ALKS operation. 1074 requirements were proposed to prevent or mitigate these causal factors, such as educating drivers about both the benefits and limitations of the ALKS to ensure safe use. The results highlighted the importance of communicating both the capabilities as well as the limitations of modern complex systems to the users to guarantee safety. This study, which is the first comprehensive application of STPA to ALKS, identified gaps with existing regulatory requirements for ALKS, and 87 recommendations were made to bridge these gaps. Our research has shown that this top-down, well-structured, and holistic method can especially be advantageous for regulators and policymakers to formulate requirements and policies to deploy and operate complex, innovative technologies, safely. (Copyright © 2025 The Authors. Published by Elsevier Ltd.. All rights reserved.) |
| Competing Interests: | Declaration of competing interest None. |
| Contributed Indexing: | Keywords: Automated Driving System(ADS); Automated Lane Keeping System (ALKS); Hazard analysis; Safety analysis; Safety-critical system; Systems Theoretic Process Analysis (STPA) |
| Entry Date(s): | Date Created: 20250814 Date Completed: 20250906 Latest Revision: 20250906 |
| Update Code: | 20260130 |
| DOI: | 10.1016/j.aap.2025.108171 |
| PMID: | 40812077 |
| Βάση Δεδομένων: | MEDLINE |
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