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research-article

Towards a method evaluating control actions in STPA-based model of ship-ship collision avoidance process

[+] Author and Article Information
Mateusz Gil

Gdynia Maritime University Faculty of Navigation, Department of Navigation, Jana Pawla II av. 3, 81-345 Gdynia, PL
m.gil@wn.umg.edu.pl

Krzysztof Wróbel

Gdynia Maritime University, Faculty of Navigation, Department of Navigation, Jana Pawla II av. 3, 81-345 Gdynia, PL
k.wrobel@wn.umg.edu.pl

Jakub Montewka

Gdynia Maritime University, Faculty of Navigation, Department of Transport and Logistics, Morska 81-87, 81-225 Gdynia, PL
j.montewka@wn.umg.edu.pl

1Corresponding author.

ASME doi:10.1115/1.4042387 History: Received September 01, 2018; Revised December 19, 2018

Abstract

As system-theoretic methods of safety assessment are developed, certain aspects of them remain under-explored, including the question of prioritizing one control action's adequacy over another. This paper investigates this feature based on the analysis of a process of merchant vessels' collision avoidance. We first elicit experts' views on the structure of the process and importance of particular interactions occurring therein. Thence, we analyze a number of incident reports to examine the percentage of cases in which failure to ensure the particular control action contributed to the loss. By comparing the results, we strive to determine whether any of the approaches might be beneficial in determining safety control actions' priorities.

Copyright (c) 2018 by ASME
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