Uncertain Factors in the Cost Estimation Process for the Helltunnel - SVV
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This master s thesis investigates the key uncertain factors and phenomena influencing the cost estimation process in tunnel projects. For this, two completed tunnels from the SVV (Statens Vegvesen Road Authority) are deeply analyzed, seeking for lessons learned, success factors and rooms for improvement. Based on the information collected, we aim to provide insights for the cost estimate process in a third similar project that is under development (Helltunnel).This thesis provides background information about the completed projects, describes the usefulness of learning from experiences and illustrates the main uncertain factors in tunneling projects. The scope of the research was oriented towards the areas of interest appointed by SVV. These areas were developed through the tacit and explicit knowledge gathered in the interviews; and based on the analysis of the information collected; we provided insights for the new cost estimation process.