Risk Management for Prefabricated Classical Thai House Construction Project

Abstract

The purpose of this research is to study the risks from the prefabricated Thai classical house construction project. The extended research on its characteristics will be necessary. The objectives of this research are to minimize and prevent the risks of a prefabricated construction project taken place in Phang-nga (Southern Thailand) in terms of time and quality. Preventive methods will also be created. Risk management team will be selected to arrange meetings. The team will evaluate the risks from the prefabricated house construction. The process of construction will be broken down into 7 processes. FMEA (Failure Mode and Effect Analysis) will be used to assess the risk sensitivity from 83 risks identified. Pareto analysis is also applied. The assessment of the RPN (Risk Priority Number) using Pareto Analysis shows that there are in total of 17 critical risks. The analysis of critical risks is done by using Fish bone analysis and Fault tree analysis to find the root cause if each of the risks. The preventive actions can be organized, using linkage between each critical risk and its root cause. Six preventive actions would resolve the intensity of these risks to lower the RPN value of the critical risks. The results show that the RPN after applying preventive actions has reduced by 70-90%. After implementation of some of the critical risks, there were improvements in the delaying schedule. The last phase of construction project finished 2 weeks before the dead line, showing a big improvement compared with to the last two phases. It is proven that risk management for the prefabricated house construction project has improved the result of the project in terms of time and quality.