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1
Content available Safety analysis of interdependent critical infrastructure networks
Blokus A., Dziula P.
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
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2019
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Vol. 13. no. 4
781--787
EN
Certain critical infrastructure networks show some interconnections, relations and interactions with other ones, most frequently when located and operating within particular areas. Failures arising within one critical infrastructure network, can then negatively impact not only on associated systems, societies and natural environment, but also on mutual critical infrastructure networks. Therefore, interdependent critical infrastructure networks can be determined as network of critical infrastructure networks (network of networks approach). The paper presents safety analysis of the network of critical infrastructure networks, taking into account interconnections, relations and interactions between particular ones. Critical infrastructures networks as multistate systems are considered, by distinguishing subsets of no-hazards safety states, and crisis situation states, and by analysing transitions between particular ones. Issues introduced in the article are based on the assumption that one key critical infrastructure network impacts on functioning of other critical infrastructure networks - can reduce their functionality and change level of their safety and inoperability, furthermore, other networks can impact each other, too. Safety characteristics of network of critical infrastructure networks: safety function, mean values and standard deviations of lifetimes in particular safety state subsets, are determined, taking into account interdependencies between particular networks. The results are related to various values of coefficients defining the significance of influence of interdependencies among networks.
2
Content available Optimization of Operation and Safety of Global Baltic Network of Critical Infrastructure Networks (GBNCIN) with Considering Climate-Weather Change Process (C-WCP) influence – Maximizing GBNCIN Lifetime in the Set of Safety States not worse than a Critical Safety State
Dziula P., Kołowrocki K.
Journal of Polish Safety and Reliability Association
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2018
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Vol. 9, No. 1
17--26
EN
The paper presents a method of the GBNCIN operation and safety, with considering the climate-weather change process, safety optimization. Basic characteristics of the critical infrastructure operation process related to climateweather change process are shown. Then, optimal transient probabilities of the GBNCIN Operation Process at Operation States Related to Climate-Weather Change Process, and the GBNCIN optimal safety and resilience indicators, are introduced. By defining unconditional multistate safety function of the GBNCIN, and corresponding optimal risk function, the optimal coefficients of the operation process related to the climateweather change impact on the GBNCIN intensities of degradation, have been determined. Finally, optimal sojourn times of the GBNCIN operation process at operation states, related to climate-weather change process and operation strategy, are presented.
3
Content available Optimization of Operation and Safety of Global Baltic Network of Critical Infrastructure Networks (GBNCIN) with Considering Climate-Weather Change Process (C-WCP) influence – Minimizing GBNCIN Operation Cost
Dziula P., Kołowrocki K.
Journal of Polish Safety and Reliability Association
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2018
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Vol. 9, No. 1
53--60
EN
The paper presents a method of the GBNCIN operation and safety, with considering the climate-weather change process, safety optimization. Basic characteristics of the critical infrastructure operation process related to climateweather change process are shown. Then, the GBNCIN operation cost related to climate-weather change is introduced. Furthermore, by analysis of the operation cost of the GBNCIN impacted by the operation process, related to the climate-weather change process, and its conditional safety functions, mean values of the total sojourn times at particular operation states during certain sufficiently large GBNCIN operation time are fixed. Finally, the GBNCIN operation cost related to climate-weather change minimization, and cost analysis of the GBNCIN operation impacted by climate-weather change, are presented.
4
Content available Optimization of Operation and Safety of Baltic Port and Shipping Critical Infrastructure Network with Considering Climate-Weather Change Influence – Minimizing Critical Infrastructure Network Operation Cost
Guze S., Kołowrocki K.
Journal of Polish Safety and Reliability Association
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2018
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Vol. 9, No. 1
61--70
EN
The paper is devoted the optimization of operation process and minimization of operation cost for Baltic Port and Shipping Critical Infrastructure Network (BPSCIN) at variable operation conditions related to the climateweather change. For this network, the optimal transient probabilities that minimize the mean value of the total operation costs are found. Finally, cost analysis of BPSCIN operation impacted by climate-weather change is presented in case the BPSCIN is non-repairable and in case it is repairable after exceeding its critical safety state.
5
Content available Optimization of Operation and Safety of Baltic Port and Shipping Critical Infrastructure Network with Considering Climate-Weather Change Influence – Maximizing Lifetime in the Set of Safety States Not Worse Than a Critical Safety State
Guze S., Kołowrocki K.
Journal of Polish Safety and Reliability Association
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2018
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Vol. 9, No. 1
27--34
EN
The paper is devoted the optimization of operation process and maximization of safety lifetimes for Baltic Port and Shipping Critical Infrastructure Network (BPSCIN) at variable operation conditions related to the climateweather change. For this network, the optimal transient probabilities of BPSCIN operation process at operation states related to climate-weather change that maximize the mean value of BPSCIN safety lifetimes are found. Finally, the optimal safety and resilience indicators of considered network are presented.
6
Content available Modelling Safety of Baltic Port and Shipping Critical Infrastructure Network
Guze S., Kołowrocki K.
Journal of Polish Safety and Reliability Association
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2017
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Vol. 8, No. 3
55--72
EN
In the paper, the three critical infrastructure networks are introduced, i.e. port, shipping, and ship traffic and port operation information. For every of them the main safety paremeters are defined. Furthermore, the multistate system component and the multistate system main safety characteristics, i.e. their mean values of the lifetimes and in the safety state subsets and in the particular safety states and standard deviations and the moment when the system risk function exceeds a fixed permitted level are determined. Finally, the Baltic Port and Shipping Critical Infrastructure Network is defined and described in the same way.
7
Content available Integrated Impact Model on Global Baltic Network of Critical Infrastructure Networks Safety Related to Its Operation Process
Dziula P., Kołowrocki K.
Journal of Polish Safety and Reliability Association
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2017
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Vol. 8, No. 4
103--112
EN
The purpose of the paper is to present the impact model for Global Baltic Network of Critical Infrastructure Networks (GBNCIN), related to its operation process. At first, basic issues regarding the GBNCIN operation at variable conditions have been described. Then, aspects regarding safety of the multistate GBNCIN at Variable operation conditions have been pointed. Finally, safety characteristics of multistate GBNCIN, consisting of exponential BCIN Networks at variable operation conditions are presented.
8
Content available Modelling Operation Process of Baltic Port, Shipping and Ship Traffic and Operation Information Critical Infrastructure Network
Guze S., Kołowrocki K.
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
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2016
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Vol. 10, no. 2
275--284
EN
The main aim of the article is modelling the operation process of the Baltic Port, Shipping and Ship Traffic and Port Operation Information Critical Infrastructure Network. To achieve this goal it is necessary to define three critical infrastructure networks for a Baltic Sea Region and their operation processes: port critical infrastructure network, shipping critical infrastructure network and ship traffic and port operation information critical infrastructure network. Thus, the concept of networks of three networks, called Baltic Port, Shipping and Ship Traffic and Port Operation Information Critical Infrastructure Network, is introduced. This way, the operation process of network of networks is proposed. To understand this approach, the basic classification and description of interdependencies and interconnections in this network are presented.
9
Content available Modelling operation process of Global Baltic Network of Critical Infrastructure Networks
Dziula P., Kołowrocki K.
Journal of Polish Safety and Reliability Association
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2016
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Vol. 7, No. 3
15--20
EN
The paper presents an approach to modelling operation process of critical infrastructure networks located within certain area. The approach has been conducted basing on networks located within the Baltic Sea area, being however also general concept of network of critical infrastructure networks operational process analysis. Operation process of particular critical infrastructure network has been defined, and then its characteristics described, by applying a semi-Markov processes modelling approach. Further, similar approach has been conducted to model operation process of network of critical infrastructure networks. On the base of models of operation processes of certain critical infrastructure network, and network of critical infrastructure networks, general approach to Global Baltic Network of Critical Infrastructure Networks modelling is presented as well.
10
Content available Methodology for Electric Cables Critical Infrastructure Network safety and resilience to climate change analysis
Blokus-Roszkowska A., Kołowrocki K., Soszyńska-Budny J.
Journal of Polish Safety and Reliability Association
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2016
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Vol. 7, No. 2
151--162
EN
In the paper the energy sector as a critical infrastructure is presented and basic terminology concerned with the energy critical infrastructure is given. The interactions and connections between critical infrastructures are described and the effects of power disruptions to other critical infrastructures are highlighted. Next, presented terminology and taxonomy refer to climate change and resilience to climate change of electric cable critical infrastructure. Finally, taxonomy of electric cable critical infrastructure network in Baltic Sea Region is given, especially in terms of climate change and resilience to climate change. Basic notions related to extreme weather events and climate change having impact on energy generation, transmission and distribution are introduced.
11
Content available Identification of climate related hazards, the Global Baltic Network of Critical Infrastructure Networks, is exposed to
Dziula P., Kołowrocki K.
Journal of Polish Safety and Reliability Association
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2016
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Vol. 7, No. 1
43--52
EN
The paper presents issues concerning identification of climate related hazards at the Baltic Sea area and their exposure for the Global Baltic Network of Critical Infrastructure Network. As a result, possible natural hazards coming from following climate/weather change are distinguished: sea water temperature changes, change in ice cover, sea level rise/ decrease, coastal erosion, precipitation, storm surges and winds, and air temperature change, for particular critical infrastructure networks operating within the Baltic Sea area.
12
Content available General methodology on the Baltic Sea critical infrastructure safety aspects − Dictionary
Blokus-Roszkowska A., Bogalecka M., Kołowrocki K.
Journal of Polish Safety and Reliability Association
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2016
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Vol. 7, No. 2
105--128
EN
The paper presents the terminology and taxonomy of critical infrastructures at the Baltic Sea Region including definitions of general terms and definitions of more detailed notions concerned with selected industrial installations at the Baltic Sea Region. In the paper there are distinguished and listed eight main critical infrastructure networks operating in the Baltic Sea Region. Presented terminology refers to these critical infrastructure networks also in the context of climate change and resilience and vulnerability of the critical infrastructures to climate change. Considering the strategy of critical infrastructures resilience strengthening there are distinguished and defined concepts of robustness, resource fullness, redundancy, response and recovery.
13
Content available Critical infrastructure networks at Baltic Sea and its seaside
Blokus-Roszkowska A., Bogalecka M., Kołowrocki K.
Journal of Polish Safety and Reliability Association
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2016
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Vol. 7, No. 2
7--14
EN
At the beginning, in the paper the basic definitions concerned with critical infrastructures and climate and weather impacts on their safety are given. Next, critical infrastructure networks operating at Baltic Sea Region, forming the Global Baltic Network of Critical Infrastructure Networks (GBNCIN), are distinguished. Dangerous events coming from/to critical infrastructures located in the Baltic Sea area are classified and described. Potential threats are divided into two groups i.e. threats associated with dynamic installations and those associated with various static industrial installations. Moreover, natural hazards associated with weather and climate change are considered.
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