Integral approach to assessing the criticality of railway infrastructure elements

Řehák, David; Slivkova, Simona; Pittner, Radim; Dvořák, Zdeněk

doi:10.1504/ijcis.2020.107256

Cited by 16 publications

(3 citation statements)

References 21 publications

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“…The standardised weights of the parameters were determined using the pairwise comparison method [61] and are presented in Table 1. In this context, it is worth noting that the current way of calculating individual variables does not take into account the changing nature of a CI element, i.e., whether it is a point, areal or line element [62,63]. The resulting level of CIE resistance is expressed by the weighted average of the individual variables (see Equation ( 2)):…”

Section: Resultsmentioning

confidence: 99%

The Importance of Resistance in the Context of Critical Infrastructure Resilience: An Extension of the CIERA Method

Rehak,

Flynnova,

Hromada

et al. 2023

Systems

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Technical sectors compose an inseparable and elementary part of a complex critical infrastructure (CI) system. Their provided services are essential to the functioning of all of the dependent sectors of CI on which society and states depend, especially in areas experiencing high levels of urbanisation. The initial point for effective CI elements’ protection is the permanent assessment and strengthening of their capacity for resilience to the negative effects of internal and external threats. The current perceptions of resilience focus primarily on repressive components responsive to incidents (i.e., robustness, recoverability, and adaptability), while minimal attention is paid to the preventative components. The article’s contribution to this literature gap is its definition of resistance, which can be considered as a CI element’s ability to prevent the occurrence of incidents. To this goal, the current study defines (1) the individual factors (variables and parameters) determining CI resistance and (2) the methodological procedure for infrastructure element resistance assessment in order to identify the weak points throughout a complex CI system and subsequently strengthen them. Moreover, a practical example of resistance assessment for a selected critical energy infrastructure element is presented. The main outcome of this article is the definition of the primary steps for the expansion of the CIERA method, via the enhancement of CI components’ resilience capacity in the prevention phase.

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Section: Resultsmentioning

confidence: 99%

The Importance of Resistance in the Context of Critical Infrastructure Resilience: An Extension of the CIERA Method

Rehak,

Flynnova,

Hromada

et al. 2023

Systems

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“…Experiments carried out on a larger number of vehicles, reflecting the individual types of vehicles, as well as roads, with emphasis on critical transport infrastructure, including other types of transportation (e.g., railway), will be the subject of further research [46,47].…”

Section: Discussionmentioning

confidence: 99%

Improvement of Road Safety through Appropriate Cargo Securing Using Outliers

et al. 2021

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The article focuses on evaluating a transportation experiment that intends to improve road safety by analyzing transport shocks that significantly affect the system of securing the load, vehicle, driver, and other aspects. Within Europe, improper or insufficient securing of loads causes up to 25% of all cargo vehicle accidents. Our transport experiment consists of eight rides of a Tatra truck. The measured values of shocks (acceleration coefficients) are statistically evaluated. Three hypotheses are established for these purposes. First, it is proven that the probability distributions of the shocks values differ statistically significantly among individual rides, namely in their shape and median value. Thus further statistical analyses are performed separately for the individual rides, axes, and the accelerometer locations. These analyses prove significant exceedances of the normatively set limits given by the EN 12195-1:2010 standard, which is potentially risky. Especially for the z axis and y axis, the set 20% limit was exceeded in 75.0% and 56.3% of cases, respectively. In the case of the x axis, the established 20% limit was practically not exceeded at all. The analysis of exceeding the permitted limits (the statistical evaluation of the second and third established hypothesis) is based on boxplots that graphically describe the individual rides, as well as on the found contaminated log-normal distribution of the values of the acceleration coefficients in the individual rides. The last hypothesis regarding exceeding the double value of the permitted limit is rejected. Methods of statistical comparison are used during data analysis. The probability distribution of acceleration coefficients is modeled using a contaminated log-normal distribution.

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“…Specifically, it is a soft target in the transportation category and interchange sub-category [58]. This element was chosen based on its significance, scope, purpose, reliability and assessment of its critical nature [58][59]. This element is interconnected with other systems.…”

Section: Case Study Of Application Of the Sociopsychological Aspects mentioning

confidence: 99%

Classification of the Socio-Psychological Aspects of Protecting Soft Targets: a Case Study for Evacuation of the Railway Terminals

Šplíchalová¹,

Karásek²,

Apeltauer³

2021

Komunikácie

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Current crisis management approaches to protect soft targets make assumptions about average visitors/listeners/viewers or passengers. They do not give much consideration to impacts of diversity of potentially evacuated persons with regard to socio-psychological parameters/factors that may lead to practical problems and complications during the evacuation itself. At the same time, the soft target operators have various means of machine vision tools at their disposal, but do not use these records for more thorough analysis of evacuation planning needs. Based on this observation, the article identifies and analyzes the socio-psychological aspects that may significantly affect behavior and decisions of persons during the evacuation and thus total evacuation time.

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Integral approach to assessing the criticality of railway infrastructure elements

Cited by 16 publications

References 21 publications

The Importance of Resistance in the Context of Critical Infrastructure Resilience: An Extension of the CIERA Method

The Importance of Resistance in the Context of Critical Infrastructure Resilience: An Extension of the CIERA Method

Improvement of Road Safety through Appropriate Cargo Securing Using Outliers

Classification of the Socio-Psychological Aspects of Protecting Soft Targets: a Case Study for Evacuation of the Railway Terminals

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