scholarly journals Assessment of Static Resilience of Objects in the Rail Transport

Author(s):  
Zdeněk Dvořák ◽  
Nikola Chovančíková ◽  
Katarína Hoterová ◽  
Michal Szatmári

Resilience is the ability of an object to retain its basic functions in the case of adverse events from an external or internal environment. Adverse events can jeopardize the operation of an object or cause it to become completely inoperable. The assessment of static resilience should be dealt with mainly by objects that are included in local, regional, national, and international critical infrastructure. ritical infrastructure is the basis of today's modern functioning society. The paper is focused on design of the static resilience evaluation of objects in the rail transport. The proposed method of static resilience assessment is based on safety pillars and is applied in a case study to a specific object of the rail transport. This approach is original in the conditions of the Slovak Republic.

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Harri Ruoslahti

Critical infrastructures often lack resilience and easily lose critical functionalities if hit by adverse events. Continuity management strategies for critical infrastructure operators and the networks that they form, rely also on the functionality of other interrelated networks. Disruptions in operations may affect society and for this reason, securing the operations of critical infrastructure operators is important. The technological impacts of CPS become evident to the resilience of all fields of critical infrastructure, but there is also human elements to take into account. The research question of this study is: How to enhance business continuity of critical infrastructure? This case study research uses qualitative methods collected by conducting interviews of resilience and continuity professionals who work with Finnish critical infrastructure. Resilience and continuity management are key for critical infrastructure operators. Important factors identified were identifying risks, critical activities, key personnel, creating guidelines and procedures, and open communication, which themes were recognised as important to improve resilience and manage continuity.


2020 ◽  
Vol 714 ◽  
pp. 136854 ◽  
Author(s):  
Sotirios A. Argyroudis ◽  
Stergios A. Mitoulis ◽  
Lorenzo Hofer ◽  
Mariano Angelo Zanini ◽  
Enrico Tubaldi ◽  
...  

Author(s):  
Zdenek Dvorak ◽  
Nikola Chovancikova ◽  
Jozef Bruk ◽  
Martin Hromada

The quality of the environment as well as public health is convincingly coupled with the functioning of a power subsector. The power subsector plays a pivotal role in the sense that it emerges as the key cross-sectional element for the society’s functioning (production, services, healthcare, education and others). A modern society consists of infrastructure systems that are primarily dependent on continuous electricity supplies. Each and every element of the electric power infrastructure is unique, and thus, its malfunction can disrupt the functioning of an important part of the electric power infrastructure. In conjunction with ensuring the functioning of electric power infrastructure, our attention must be drawn to the resilience issue. As far as the resilience of electric power infrastructure is concerned, it can resist weather-related events ensuring there are no disruptions in continuous electricity supplies. First, in the introductory part, the article presents the legal framework in the Slovak Republic. Second, it describes the current state of the electric power infrastructure of Slovakia. Third, it handles the state of the level of security risk assessment. Later on, in the literature review, besides turning to the issue of resilience assessment, the authors focused on the area of resilience of power engineering. Furthermore, the article scrutinizes resilience assessment in Slovakia, and it briefly examines approaches towards natural threats. In addition, the article demonstrates several approaches towards flood resilience. Having used different methods, the primary concern is to devise a framework for resilience assessment. Therefore, the included case study examines aspects of the proposed framework for resilience assessment. In conclusion, our aim was, in most respects, to outline an innovative methodological framework for increasing the resilience of electricity infrastructure.


2015 ◽  
Vol 6 (1) ◽  
pp. 47-56
Author(s):  
Matej Kacaljak

Abstract This paper discusses the Al Capone case and identifies legal institutions which contributed to the conviction of Al Capone for tax evasion in the USA and discusses similarities in Slovak law. The Slovak legal environment is assessed with the aim of identifying potential room for improvement. Under an assumption of identical factual circumstances, it is tested whether Al Capone would be convicted of tax evasion in the Slovak Republic and if not, what would be the main reasons. The paper concludes that due to some, probably unintentional, specifics of Slovak tax and criminal law, Al Capone could not be convicted of tax evasion by the Slovak courts. In our opinion, these specifics do not, however, constitute material elements of the basic structure of Slovak tax and criminal law and could be relatively easily corrected.


PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0260940
Author(s):  
Jiuxia Guo ◽  
Yang Li ◽  
Zongxin Yang ◽  
Xinping Zhu

The resilience and vulnerability of airport networks are significant challenges during the COVID-19 global pandemic. Previous studies considered node failure of networks under natural disasters and extreme weather. Herein, we propose a complex network methodology combined with data-driven to assess the resilience of airport networks toward global-scale disturbance using the Chinese airport network (CAN) and the European airport network (EAN) as a case study. The assessment framework includes vulnerability and resilience analyses from the network- and node-level perspectives. Subsequently, we apply the framework to analyze the airport networks in China and Europe. Specifically, real air traffic data for 232 airports in China and 82 airports in Europe are selected to form the CAN and EAN, respectively. The complex network analysis reveals that the CAN and the EAN are scale-free small-world networks, that are resilient to random attacks. However, the connectivity and vulnerability of the CAN are inferior to those of the EAN. In addition, we select the passenger throughput from the top-50 airports in China and Europe to perform a comparative analysis. By comparing the resilience evaluation of individual airports, we discovered that the factors of resilience assessment of an airport network for global disturbance considers the network metrics and the effect of government policy in actual operations. Additionally, this study also proves that a country’s emergency response-ability towards the COVID-19 has a significantly affectes the recovery of its airport network.


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