Evolutive Risk Breakdown Structure for managing construction project risks: application to a railway project in Algeria

Abstract

Construction projects are subject to numerous risks that could have consequences on project success. Therefore, it is necessary to manage project risks by modelling them. Risk Breakdown Structure (RBS) is a hierarchical formalisation method of risks facilitating their identification and analysis. Project risks have a dynamic nature; they evolve throughout the project. Consequently, RBS needs to be adapted continuously throughout the project. This paper proposes an evolutionary vision of RBS, which allows simultaneous consideration of risk variations and their impact on RBS structure. The method is applied retrospectively to a railway infrastructure project in Algeria, in order to illustrate the principle of the process and to highlight its interest.Les projets de construction sont soumis à de nombreux risques qui peuvent en affecter la réussite. De ce fait, il est nécessaire de pouvoir maitriser les risques liés au projet; cela passe par la modélisation de ces risques. Le Risk Breakdown Structure (RBS) est une méthode de formalisation hiérarchisée des risques facilitant leur identification et ensuite leur analyse. Mais les risques de projet sont par nature dynamiques : ils évoluent tout au long du projet. Ainsi les RBS doivent pouvoir s'adapter en permanence. Cet article propose une vision évolutive des RBS qui permet tout à la fois de rendre compte de la variation des risques et de son impact sur leur représentation. La méthode est appliquée rétrospectivement à un projet d'infrastructure ferrée en Algérie, ce qui permet d'en illustrer le déroulement et l'intérêt.

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Risk Analysis in Early Phase of Complex Infrastructure Projects

“…Therefore, a strategic and environmental analysis can be used for identifying the main risk and opportunity factors to take a strategic decision about the project's future (GO or STOP decision) and to define a risk allocation strategy or/and preliminary risk response planning before the contracting phase ( Table 1). The goal is to qualify the threats-opportunities and strengths-weaknesses of the project related to its environment [22][23][24]. Then, we detailed the risk and opportunity factors related to the external and internal environment of an infrastructure project and defined a qualitative risk assessment method to analyze the overall risk level of the project in the early phase.…”

A Hybrid Fuzzy TOPSIS – Best Worst Method for Risk Prioritization in Megaprojects

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