Forthcoming articles

International Journal of Critical Infrastructures

International Journal of Critical Infrastructures (IJCIS)

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International Journal of Critical Infrastructures (6 papers in press)

Regular Issues

  • Study on Seismic Performance of Long-Span Railway Continuous Girder Bridges in High Seismic Intensity Region   Order a copy of this article
    by Jianning Li, Lusong Yu, Ziqi Li, Wei Lu 
    Abstract: Taking a long-span railway continuous girder bridge in a high seismic intensity region as the research subject, use finite element software to establish calculation model, Input artificial seismic wave for nonlinear seismic response analysis. The results show that the bottom of fixed pier and piers on both sides have entered elastoplastic working state, and seismic resistance capability of the fixed pier is insufficient, the displacement of main girder exceeds 20cm, which will lead to a risk of girder falling. In order to reduce the seismic response of structure, Use liquid viscous damper for seismic design, After damping processing, the displacement of the main girder is effectively controlled, seismic load of the fixed pier is reduced ,and seismic capacity of each pier is well played, The earthquake load of piers on two sides with fixed bearing of the adjacent-span simply supported girder bridge has a certain degree of reduction.
    Keywords: High Seismic Intensity Region; Long-Span Continuous Girder Bridge; Nonlinear Analysis; Liquid Viscous Damper; Sensitivity Analysis; Damping Effect.
    DOI: 10.1504/IJCIS.2020.10027823
     
  • Failure Probability Analysis of Heliostat Systems   Order a copy of this article
    by Kong Fah Tee, Samir Benammar 
    Abstract: Failure probability analysis of heliostat systems has been provided in order to evaluate the risk on their design over their life cycle. Based on mechanics of material study and wind aerodynamic analysis, a performance function, with five random variables, has been developed wherein the random variables are: wind speed, inside and outside pedestal diameters, pedestal yield stress and mirror mass. To analyze the failure probability of this performance function, four main methods have been proposed: First Order Reliability Method (FORM), Second Order Reliability Method (SORM), Monte Carlo Method (MC) and Subset Simulation Method (SS) The variation of failure probability with the variation of pedestal wall thickness and wind speed, for different outside diameters, has been simulated.
    Keywords: failure analysis; heliostat; probability of failure; subset simulation; wind load.
    DOI: 10.1504/IJCIS.2020.10030105
     
  • Effect of organisational culture on ICT project success in public higher learning institutions in Nigeria   Order a copy of this article
    by Adewale Adekiya, Oscar Tiago Fontes Bernardes 
    Abstract: Evidences have shown that most projects in developing countries fails at an alarming rate probably due to lack of consideration for critical success factors that are needed in the project management process. In this study, organisational culture is highlighted as one of these factors and its effect on the success of information communication technology infrastructure in three higher educational institutions in Nigeria, was examined. By making use of the cross-sectional survey, research data were elicited from 63 employees/project managers who are deemed as stakeholders to this infrastructure. From the analysis that was conducted, it was discovered based on the perception of these respondents that the ICT infrastructures in these institutions meets and surpasses expectations. Put in another way, these infrastructures may be classified as a success. Additionally, a positive relationship was uncovered between organisational culture and project success which means that project success may be improved by concentrating on manipulating the culture that prevails in an organisational environment. Having this in mind, recommendations were made for organisations to view culture as a veritable tool for enhancing project success.
    Keywords: organisational culture; information communication technology; ICT; project success; higher institution of learning.
    DOI: 10.1504/IJCIS.2020.10030170
     
  • Track inspection schedule planning with time and safety considerations   Order a copy of this article
    by Hadi Farhangi, Dincer Konur, Suzanna Long, Ruwen Qin 
    Abstract: The automated track inspection is one of the most common inspection methods used to monitor the health of the rail tracks. Automated inspection is commonly carried out by vehicles equipped with technology capable of ultrasonic track inspection. Scheduling an automated inspection vehicle is, therefore, crucial to optimise the safety benefits achieved from inspection. In this study, we introduce a bi-objective track inspection scheduling problem for an automated ultrasonic inspection vehicle. This model maximises the safety benefits and minimises the time required for completing the scheduled inspections. We propose an evolutionary scheduling heuristic and compare it to a naive greedy scheduling method. Through a numerical study, we conclude that the evolutionary scheduling heuristic outperforms the greedy scheduling heuristic. Furthermore, we note that considering two objectives for track inspection planning leads to inspection schedules with higher safety benefits per unit inspection time.
    Keywords: track inspection; schedule planning; multi-objective optimisation; heuristics.
    DOI: 10.1504/IJCIS.2020.10025995
     
  • Application of risk analysis and allocation model on public-private partnership power transmission line projects   Order a copy of this article
    by Ganesh Sadashiv Kate, Pandurang Shanakar Patil 
    Abstract: The aim of this paper is to apply risk analysis and allocation model on a particular public-private partnership (PPP) power transmission line project in India, so as to asses risks in various phases of PPP power transmission projects. After risk assessment risk allocation is done so that the concerned stakeholders can take migratory action in similar future projects. A case study of the Bongaigaon-Siliguri power transmission line project is studied. The expected monetary value method is used for risk analysis. It is found that the major and high-risk level risk contribution is high. Then risk allocation is done from this it is found that in execution phase risk is more as compared to other phases of the project. In stakeholder wise risk allocation it is found that the project company is taking the maximum risk, which is highest as compared to other stakeholders involved in the PPP power transmission line project.
    Keywords: public-private partnership; PPP; risk analysis; risk allocation.
    DOI: 10.1504/IJCIS.2020.10028789
     
  • System acquisition pathology: a comprehensive characterisation of system failure modes and effects   Order a copy of this article
    by Polinpapilinho F. Katina 
    Abstract: Acquisition systems are shaped by calls for reforming, improving and modification. These calls include tangible processes, tools, and methods geared towards meeting cost, schedule, and technical performance. Failure avoidance is often considered a driving factor in acquisition systems. However, there remains a lack of systems research, particularly the inclusion of systems perspectives in acquisition systems failure analysis. The aim of this research was three-fold: 1) to understand the current state of acquisition systems with an emphasis on success/failures; 2) to elevate general systems theory (GST) as a foundation for the comprehensive characterisation of system acquisition failure, and; 3) to articulate a GST-based approach for identification/assessment of failures in system acquisition. Using GST, a grounded theory method is used to develop a construct for system acquisition pathology and validated in a case application. A method for identification of system acquisition pathology is then described along with implications for system acquisition research.
    Keywords: complex system governance; acquisition system; Department of Defense; DoD; general systems theory; GST; (meta)pathology; M-Path; system pathology; system performance; systems engineering; system failure.
    DOI: 10.1504/IJCIS.2020.10028466