Comprehensive scenario analysis for mitigation of risks of the maritime traffic in the Strait of Istanbul

Birnur Özbaş, İlhan Or and Tayfur Altıok

Journal of Risk Research, 2013, vol. 16, issue 5, 541-561

Abstract: In this paper, the results of a scenario analysis are presented using the models developed by the authors in their prior work. Therein an aggregate risk-simulation model of the maritime traffic in the Strait of Istanbul was developed giving consideration to traffic rules, vessel profiles, pilotage services, meteorological, geographical conditions, and vessel scheduling. A risk assessment was carried out by incorporating a probabilistic accident risk model into the simulation model to establish a baseline level of risk. Herein, 16 scenarios are described as modifications of the baseline scenario for the purpose of studying maritime risk mitigation in this geographic context. We have evaluated the impact of several factors such as vessel arrival rates, vessel pursuit distances, number of pilots, local traffic density, and vessel scheduling practices such as the single-lane traffic regime start time on safety risks. We also present a discussion on the impact of each factor on vessel passages and waiting times at both entrances of the Strait. We conclude with risk mitigation recommendations that reduce both risk and waiting times, and thus can be considered 'win-win' from both an operational and risk reduction perspective.

Date: 2013
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DOI: 10.1080/13669877.2012.726239

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