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Articles

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

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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.

Acknowledgements

The authors would like to express their gratitude to the project stakeholders which provided information and documents on this railway project.

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