Multiphase project risk management on food factory building construction: Consultant perspective

This article reports on research on a flour mill factory building construction in Indonesia by investigating the root cause of time overrun in consultant perspective. While numerous risks are identified during the phases of construction project, it is unknown which risk is the primary cause of project delays. To have a better understanding of the optimisation of the risk management and the risk mitigation, a multiphase risk management is proposed, which is divided into four phases, namely pre-design, design, tender and construction. Employing the bow-tie analysis enables a more in-depth examination to identify the risk. From each bow-tie diagram, a detailed risk mitigation table can be formulated and made the response for each risk easier to plan. The probability impact matrix is then used to identify the risk score and to evaluate the risk. This research began by giving questionnaires to 45 qualified respondents. It was found that 45 factors that caused the delay in all phases were divided into nine factors from the pre-design phase, 14 factors from the design phase, 6 factors from the tender phase and 16 factors from the construction phase. As the final step of the risk management process, there are various responses in this research depends on their final assessment based on the scores and the questionnaire results. Factory building construction is quite different from the other type of building construction because machine design also being an important part that affects the structural, architectural, mechanical and electrical aspects.