Challenges for Air Transport Providers in Czech Republic and Poland

Toruń, Anna; Burniak, C.; Biały, Jerzy; Grzesik, Norbert; Hošková-Mayerová, Šárka; Woch, Marta; Zieja, Mariusz; Rurak, Adam

doi:10.1155/2018/6374592

Cited by 4 publications

(2 citation statements)

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“…The criticality of infrastructures as well as the vulnerability are increasing with the increasing dependence of human systems on infrastructures (Torun 2018). The cybernetic infrastructure is one of such area where new harmful phenomena are dynamically emerging.…”

Section: Resultsmentioning

confidence: 99%

Cyber Security of Urban Guided Transport Management according to MILS Principles

Procházka¹,

Novobilský²,

Procházková³

2019

Proceedings of the 29th European Safety and Reliability Conference (ESREL)

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The Urban guided transport management system (UGTMS) as subway, transports from several hundreds of thousands to millions of passengers per day. Size and irreplaceability of subway transport capacity include the subway transport to the critical infrastructures of cities, regions or countries. Modern transport critical infrastructures contain in addition to physical and social parts also the cyber control systems and they are marked as cyber-physical systems (CPS). The CPSs are characterized by safety-critical nature, complexity, connectivity, and open technology. The CPS complexity, openness and dynamics form a large attack surface that may lead to failures and irreparable damage. Multiple Independent Levels of Security (MILS) can meet the high system security requirements. The MILS is a high-assurance security architecture based on the concepts of separation and controlled information flow. The article discusses the possibilities of using the MILS platform in the data communication subsystem, which connects the individual UGTMS subsystems (Wayside subsystem, On-board subsystem and operation control subsystem). Therefore, the communication system should guarantee transmission parameters and do not affect security level of the respective subsystems.

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Section: Resultsmentioning

confidence: 99%

Cyber Security of Urban Guided Transport Management according to MILS Principles

Procházka¹,

Novobilský²,

Procházková³

2019

Proceedings of the 29th European Safety and Reliability Conference (ESREL)

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“…As oil spills can have a profound impact on the reliability of operations, profitability of investments, and operating costs associated with various industries and sectors [69,70], it seems reasonable to devote significant attention and resources to prevent and effectively respond to oil discharges, ensuring the sustainability and resilience of these industries in the face of potential environmental risks. Moreover, the aviation industry, with its reliance on fuel and oil can have the potential impact on oil spills [71,72]. Investing in early warning systems and improving spill response capabilities can help minimize the impact of e.g., flood-induced oil spills [73].…”

Section: Discussionmentioning

confidence: 99%

Oil Discharge Trajectory Simulation at Selected Baltic Sea Waterway under Variability of Hydro-Meteorological Conditions

Dąbrowska

2023

Water

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The paper deals with an important issue related to the identification, modelling, and prediction of environmental pollution in aquatic ecosystems of the Baltic Sea caused by anthropopressure. Water ecosystems are in danger nowadays because of the negative influence of chemical releases in seas, oceans, or inland waters. The crucial issue is to prevent the oil spills and mitigate their consequences. Thus, there is a need for methods capable of reducing the water pollution and enhancing the effectiveness of port and marine environment preservation. The challenge in implementing actions to remove and prevent horizontal oil discharge lies in accurately determining its shape and direction of oil spreading. The author employed a self-designed software utilizing modified and developed mathematical probabilistic models to forecast the movement and dispersion of an oil spill in diverse hydrological and meteorological conditions. This involved determining the trajectory and movement of a spill domain, which consists of elliptical sub-domains undergoing temporal changes. The research results obtained are the initial results in the oil spill simulation problem. This approach represents an expanded and innovative method for determining the spill domain and tracking its movement, applicable to oceans and seas worldwide. It expands upon the methodologies firstly discussed, thereby broadening the range of available techniques in this field. A simple model of an oil spill trajectory simulation and a surface oil slick as an ellipse is illustrated using a time-series of selected hydro-meteorological factors that change at random times. The author proposes a Monte Carlo simulation method to determine the extent of an oil spill in an aquatic ecosystem, taking into account the influence of varying hydro-meteorological conditions. A semi-Markov model is defined to capture the dynamics of these conditions within the spill area and develop an enhanced algorithm for predicting changes in the shape and movement of the spill domain under changing these conditions. By applying the algorithm, a simulation is conducted to provide short-term prediction of the oil discharge trajectory in a selected Baltic Sea waterway. To enhance the accuracy of predicting the process of changing conditions, uniformly tested joint datasets from the open sea water area were incorporated. Finally, the potential future prospects and directions for further research in this field are discussed.

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