scholarly journals Modelling Resilience of the Transport Critical Infrastructure Using Influence Diagrams

2020 ◽  
Vol 22 (1) ◽  
pp. 102-118
Author(s):  
Michal Titko ◽  
Jan Havko ◽  
Jana Studena
Keyword(s):  
Critical Infrastructure ◽  
Transportation Network ◽  
Influence Diagrams ◽  
Network Element ◽  
Disaster Impact ◽  
Close Relationship ◽  
Time Decomposition ◽  
Resilience Assessment

The article discusses the possible impact of disasters on functionality of the transport critical infrastructure elements by overcoming their resilience. The aim of the article is to provide an appropriate approach to the resilience measurement through understanding of this close relationship. It was achieved by using combination of (1) a decisiontheoretical approach based on Influence Diagrams, which was used as a tool to model functionality disruption level of transportation network elements after disaster impact and (2) the time decomposition of the functionality disruption duration of these elements. Based on this approach, the transportation network element resilience assessment was conducted in form of the transportation element resilience loss. The proposed approach is intended to be applied to the critical infrastructure elements rather than to the transportation network as a whole.

scholarly journals The Use of GIS Technologies in the Management of the Urban Transportation System

2019 ◽  
Vol 8 (9) ◽  
pp. 2324-2327
Keyword(s):  
Public Transport ◽  
Transportation Network ◽  
Urban Transportation ◽  
Urban Transport ◽  
Transport Network ◽  
Network Element ◽  
Gis Technologies ◽  
Information Models ◽  
Urban Public Transport ◽  
Standard Information

The article describes the practical and theoretical aspects of using GIS technologies with respect to urban transport networks, as well as considers the developed generalized algorithm for GIS-processing technology of the urban transportation network parameters. The authors suggest the algorithm of information models of urban transport network elements taking into account the importance of set tasks and the developed method to optimize parameters of the elements of GIS of urban transport network in terms of optimization of urban public transport operation parameters, as well as the structure of the standard information model of the urban transport network element named "Urban public transport route".

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

2021 ◽  
Vol 23 (3) ◽  
pp. F96-F108
Author(s):  
Zdeněk Dvořák ◽  
Nikola Chovančíková ◽  
Katarína Hoterová ◽  
Michal Szatmári
Keyword(s):  
Adverse Events ◽  
Critical Infrastructure ◽  
Slovak Republic ◽  
Rail Transport ◽  
Internal Environment ◽  
Specific Object ◽  
Basic Functions ◽  
Resilience Assessment

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.

Integrated Framework for Risk and Resilience Assessment of the Road Network under Inland Flooding

2019 ◽  
Vol 2673 (12) ◽  
pp. 182-190 ◽  
Author(s):  
Ning Zhang ◽  
Alice Alipour
Keyword(s):  
Risk Assessment ◽  
Risk Analysis ◽  
Road Network ◽  
Transportation Network ◽  
User Equilibrium ◽  
Vulnerability Analysis ◽  
Integrated Framework ◽  
The Road ◽  
Flooding Events ◽  
Resilience Assessment

A transportation network facilitates the connectivity of local residential areas, improves capability for movement of goods, and contributes to economic development. Recent flooding events in the U.S. have highlighted the vulnerability of our transportation network to such events. Flooding, a predominant destructive hazard, leads to significant direct damages to physical road infrastructures and also results in significant indirect losses to communities that rely on the road network. Decision-makers, designers and planners all must understand the risks associated with such events and make adequate preparations for them. This paper proposes a holistic framework for integrating flooding hazards with vulnerability analysis of transportation road infrastructures, topologic risk analysis, and flow-based risk assessment. Vulnerability analysis of infrastructures reveals the extent of closure on roads and bridges. Topologic risk analysis, based on graph theory, provides immediate information on network characteristics that could be linked to instantaneous connectivity measures. Flow-based risk assessment uses a user equilibrium model to compute traffic time for the entire network for assessment of user losses from increased traffic time. Finally, the developed framework can be used to assess risks for a segment of the primary road system in the state of Iowa when facing flooding events with return periods of 2, 50, 200 and 500 years. It is expected that this integrated framework and the network performance measures could inform future resilience assessment and enhancement strategies in the studied region and provide a framework for other states that might wish to adopt this approach.

Overview of Interdependency Models of Critical Infrastructure for Resilience Assessment

2022 ◽  
Vol 23 (1) ◽  
Author(s):  
Wenjuan Sun ◽  
Paolo Bocchini ◽  
Brian D. Davison
Keyword(s):  
Critical Infrastructure ◽  
Resilience Assessment
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