Risk Factors Assessment Considering Change Degree for Mega-projects

Recently, techniques in the construction industry have rapidly developed, and alongside these changes there have been demands for the complexification, advancement and enlargement of the technical level and size. Thus, the risks are becoming increasingly diverse in the process of progress on construction projects. It is necessary to minimize the impacts of negative factors on the projects through the investigation and management of risk factors before they occur. But, the investigation and analysis of impacts are difficult due to the interdependent relationships among risk factors, and mega projects, in terms of project units, are on the rise. It is necessary to investigate risk factors considering the relationship among many changes. Therefore, this study was conducted to investigate risk factors and to evaluate the importance among the risk factors of a construction project while simultaneously considering the risk impact and change impact. If, prior to the beginning of construction work, risk factors with great impacts are managed based on the analysis results, they are expectedly applied as index to support the successful execution of a construction project.