Wyniki wyszukiwania - BazTech

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Modeling safety of port and maritime transportation systems

Magryta-Mut Beata

Zeszyty Naukowe Akademii Morskiej w Szczecinie

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2023

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nr 74 (146)

65--74

EN

This study aims to improve an earlier safety analysis of port and maritime transportation systems in two cases. The first case does not consider outside impacts and the second case operates under the assumption that they are impacted by their operation processes. New and original suggestions on separate and joint system safety and operation cost optimization are also described and future research is also outlined. Probabilistic modeling methods are used as the research methods. The proposed research procedures enable the determination of the safety function and risk function for the port oil terminal critical infrastructure and the maritime ferry technical system in both examined cases, based on the strictly exact statistical data about their operation processes and on the improved approximate evaluations of their components safety parameters through expert opinion methods that originate directly from the users of these systems. Other proposed practically significant safety and resilience indicators are the mean lifetime up to the exceeding of a critical safety state, the moment when the risk function value exceeds the acceptable safety level, the intensity of ageing/degradation in both cases, the coefficient of operation process impact on system safety, and the coefficient of system resilience to operation process impact in the second case. As a result of this research, it is originally found that the proposed cost optimization procedures and the finding of the corresponding system safety indicators deliver an important possibility for the system total operation cost minimizing and keep fixed the corresponding conditional safety indicators during the operation. It was also established that the proposed system safety optimization procedures, and corresponding system operation total costs, deliver an important possibility for the system safety indicators maximization and keep fixed the corresponding system operation total costs during the operation.

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Safety analysis of critical infrastructure impacted by operation and climate-weather changes - theoretical backgrounds

Kołowrocki Krzysztof

Safety and Reliability of Systems and Processes

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2021

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Summer Safety and Reliability Seminar 2021

139--180

EN

The methodology and general approach to critical infrastructure safety and resilience analysis is proposed. The principles of multistate approach to critical infrastructure safety analysis are introduced. There are introduced the notions of critical infrastructure basic safety indicators like, the critical infrastructure safety function, the critical infrastructure risk function and the critical infrastructure fragility curve. The critical infrastructure safety and resilience indicators are proposed to be obtained using probabilistic approach to modelling of operation threats and extreme weather hazard impacts on its assets safety. There are proposed safety and resilience indicators, crucial for operators and users of the critical infrastructure, defined as a complex system in its operating environment. The safety of a critical infrastructure free of any outside impacts is discussed and modelled. The safety indicators of this critical infrastructure are defined. The safety of critical infrastructure impacted by its operation process is considered. The critical infrastructure operation process and its parameters are defined and its characteristics are determined. The safety and resilience indicators of the critical infrastructure related to the operation process impact are proposed. The safety of critical infrastructure impacted by the climate-weather change process at its operating area is considered. The climate-weather change process at the critical infrastructure operating area and its parameters are defined and its characteristics are determined. The safety and resilience indicators of the critical infrastructure related to the climate-weather change process at its operating area impact are proposed. The safety of critical infrastructure impacted by its operation process and climate-weather change process at its operating area is considered. The critical infrastructure operation process related to climate-weather change process at its operating area and its parameters are defined and its characteristics are determined. The safety and resilience indicators of the critical infrastructure impacted by the operation process related to climate-weather change process are proposed. Real critical infrastructures and their assets impacted by their operation processes related to climate-weather change process at their operating area are suggested to be examined and their safety and resilience indicators are proposed to be determined by the proposed methods.

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Safety and security of Baltic Sea area critical infrastructure networks : integrated management system

Kołowrocki Krzysztof, Soszyńska-Budny Joanna

Journal of Polish Safety and Reliability Association

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2019

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Vol. 10, No. 1

79--98

EN

The Baltic Sea basin is analyzed and Baltic Sea main geographical and climatological parameters are presented. The Baltic Sea environmental impacts of human activity and the ways of their consequences protection are discussed. The set of critical infrastructure networks at Baltic Sea and its seaside is identified and critical infrastructures and their operation environment methodology is introduced. The integrated management system of safety and security of Baltic Sea area critical infrastructure networks is proposed as a new research project continuing HAZAD project subjects and its core aims and description are presented. The project research team conception is created and partner cooperation added values are addressed. Seven main steps of project implementation are suggested. Moreover, the appropriate and wide references are given.